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authorDimitri Sokolyuk <demon@dim13.org>2017-09-04 09:45:22 +0200
committerDimitri Sokolyuk <demon@dim13.org>2017-09-04 09:45:22 +0200
commit20ccf7331188c5ddfe5db30ea5f90c45319e4fb8 (patch)
tree34b011a680da7c8b4f457343fb66264a786bd5d8
parent14101f0e82ca58fbb4ce19632657f9e35d907a7f (diff)
Add vendor
-rw-r--r--Gopkg.lock21
-rw-r--r--Gopkg.toml26
-rw-r--r--vendor/github.com/GeertJohan/cgo.wchar/convert.go274
-rw-r--r--vendor/github.com/GeertJohan/cgo.wchar/readme.md24
-rw-r--r--vendor/github.com/GeertJohan/cgo.wchar/wchar.go159
-rw-r--r--vendor/github.com/GeertJohan/cgo.wchar/wchar_notwin.go6
-rw-r--r--vendor/github.com/GeertJohan/cgo.wchar/wchar_test.go105
-rw-r--r--vendor/github.com/GeertJohan/cgo.wchar/wchar_windows.go4
-rw-r--r--vendor/github.com/GeertJohan/go.hid/.gitignore1
-rw-r--r--vendor/github.com/GeertJohan/go.hid/LICENSE22
-rw-r--r--vendor/github.com/GeertJohan/go.hid/LICENSE-hidapi.txt9
-rw-r--r--vendor/github.com/GeertJohan/go.hid/hid.go707
-rw-r--r--vendor/github.com/GeertJohan/go.hid/hid_darwin.c1112
-rw-r--r--vendor/github.com/GeertJohan/go.hid/hid_linux.c1427
-rw-r--r--vendor/github.com/GeertJohan/go.hid/hid_windows.c923
-rw-r--r--vendor/github.com/GeertJohan/go.hid/hidapi.h387
-rw-r--r--vendor/github.com/GeertJohan/go.hid/readme.md104
17 files changed, 5311 insertions, 0 deletions
diff --git a/Gopkg.lock b/Gopkg.lock
new file mode 100644
index 0000000..a9b5281
--- /dev/null
+++ b/Gopkg.lock
@@ -0,0 +1,21 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+ branch = "master"
+ name = "github.com/GeertJohan/cgo.wchar"
+ packages = ["."]
+ revision = "a0ecb6cbd4aca3df15c391d95d087d92e5eeb8f7"
+
+[[projects]]
+ branch = "master"
+ name = "github.com/GeertJohan/go.hid"
+ packages = ["."]
+ revision = "cd5395e4d58196799fb6a6841112bf1ccb8eb5b1"
+
+[solve-meta]
+ analyzer-name = "dep"
+ analyzer-version = 1
+ inputs-digest = "ed6cd506c3e1f38de97fefa80238734a8d00c1248c9f89ae3c89e8253d01b05f"
+ solver-name = "gps-cdcl"
+ solver-version = 1
diff --git a/Gopkg.toml b/Gopkg.toml
new file mode 100644
index 0000000..26e6aa3
--- /dev/null
+++ b/Gopkg.toml
@@ -0,0 +1,26 @@
+
+# Gopkg.toml example
+#
+# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+# name = "github.com/user/project"
+# version = "1.0.0"
+#
+# [[constraint]]
+# name = "github.com/user/project2"
+# branch = "dev"
+# source = "github.com/myfork/project2"
+#
+# [[override]]
+# name = "github.com/x/y"
+# version = "2.4.0"
+
+
+[[constraint]]
+ branch = "master"
+ name = "github.com/GeertJohan/go.hid"
diff --git a/vendor/github.com/GeertJohan/cgo.wchar/convert.go b/vendor/github.com/GeertJohan/cgo.wchar/convert.go
new file mode 100644
index 0000000..70f1b1b
--- /dev/null
+++ b/vendor/github.com/GeertJohan/cgo.wchar/convert.go
@@ -0,0 +1,274 @@
+package wchar
+
+/*
+#cgo darwin LDFLAGS: -liconv
+#cgo windows LDFLAGS: -liconv
+#include <stdlib.h>
+#ifdef __APPLE__
+# define LIBICONV_PLUG 1
+#endif
+#include <iconv.h>
+#include <wchar.h>
+*/
+import "C"
+
+import (
+ "encoding/binary"
+ "fmt"
+ "unsafe"
+)
+
+// iconv charset strings
+var (
+ iconvCharsetWchar = C.CString("wchar_t//TRANSLIT")
+ iconvCharsetChar = C.CString("//TRANSLIT")
+ iconvCharsetAscii = C.CString("ascii//TRANSLIT")
+ iconvCharsetUtf8 = C.CString("utf-8//TRANSLIT")
+)
+
+// iconv documentation:
+// Use iconv. It seems to support conversion between char and wchar_t
+// http://www.gnu.org/savannah-checkouts/gnu/libiconv/documentation/libiconv-1.13/iconv_open.3.html
+// http://www.gnu.org/savannah-checkouts/gnu/libiconv/documentation/libiconv-1.13/iconv.3.html
+// http://www.gnu.org/savannah-checkouts/gnu/libiconv/documentation/libiconv-1.13/iconv_close.3.html
+
+// Internal helper function, wrapped by several other functions
+func convertGoStringToWcharString(input string) (output WcharString, err error) {
+ // quick return when input is an empty string
+ if input == "" {
+ return NewWcharString(0), nil
+ }
+
+ // open iconv
+ iconv, errno := C.iconv_open(iconvCharsetWchar, iconvCharsetUtf8)
+ if iconv == nil || errno != nil {
+ return nil, fmt.Errorf("Could not open iconv instance: %s", errno)
+ }
+ defer C.iconv_close(iconv)
+
+ // calculate bufferSizes in bytes for C
+ bytesLeftInCSize := C.size_t(len([]byte(input))) // count exact amount of bytes from input
+ bytesLeftOutCSize := C.size_t(len(input) * 4) // wide char seems to be 4 bytes for every single- or multi-byte character. Not very sure though.
+
+ // input for C. makes a copy using C malloc and therefore should be free'd.
+ inputCString := C.CString(input)
+ defer C.free(unsafe.Pointer(inputCString))
+
+ // create output buffer
+ outputChars := make([]int8, len(input)*4)
+
+ // output for C
+ outputCString := (*C.char)(unsafe.Pointer(&outputChars[0]))
+
+ // call iconv for conversion of charsets, return on error
+ _, errno = C.iconv(iconv, &inputCString, &bytesLeftInCSize, &outputCString, &bytesLeftOutCSize)
+ if errno != nil {
+ return nil, errno
+ }
+
+ // convert []int8 to WcharString
+ // create WcharString with same length as input, and one extra position for the null terminator.
+ output = make(WcharString, 0, len(input)+1)
+ // create buff to convert each outputChar
+ wcharAsByteAry := make([]byte, 4)
+ // loop for as long as there are output chars
+ for len(outputChars) >= 4 {
+ // create 4 position byte slice
+ wcharAsByteAry[0] = byte(outputChars[0])
+ wcharAsByteAry[1] = byte(outputChars[1])
+ wcharAsByteAry[2] = byte(outputChars[2])
+ wcharAsByteAry[3] = byte(outputChars[3])
+ // combine 4 position byte slice into uint32
+ wcharAsUint32 := binary.LittleEndian.Uint32(wcharAsByteAry)
+ // find null terminator (doing this right?)
+ if wcharAsUint32 == 0x0 {
+ break
+ }
+ // append uint32 to outputUint32
+ output = append(output, Wchar(wcharAsUint32))
+ // reslice the outputChars
+ outputChars = outputChars[4:]
+ }
+ // Add null terminator
+ output = append(output, Wchar(0x0))
+
+ return output, nil
+}
+
+// Internal helper function, wrapped by several other functions
+func convertWcharStringToGoString(ws WcharString) (output string, err error) {
+ // return empty string if len(input) == 0
+ if len(ws) == 0 {
+ return "", nil
+ }
+
+ // open iconv
+ iconv, errno := C.iconv_open(iconvCharsetUtf8, iconvCharsetWchar)
+ if iconv == nil || errno != nil {
+ return "", fmt.Errorf("Could not open iconv instance: %s", errno.Error())
+ }
+ defer C.iconv_close(iconv)
+
+ inputAsCChars := make([]C.char, 0, len(ws)*4)
+ wcharAsBytes := make([]byte, 4)
+ for _, nextWchar := range ws {
+ // find null terminator
+ if nextWchar == 0 {
+ // Return empty string if there are no chars in buffer
+ //++ FIXME: this should NEVER be the case because input is checked at the begin of this function.
+ if len(inputAsCChars) == 0 {
+ return "", nil
+ }
+ break
+ }
+
+ // split Wchar into bytes
+ binary.LittleEndian.PutUint32(wcharAsBytes, uint32(nextWchar))
+
+ // append the bytes as C.char to inputAsCChars
+ for i := 0; i < 4; i++ {
+ inputAsCChars = append(inputAsCChars, C.char(wcharAsBytes[i]))
+ }
+ }
+
+ // input for C
+ inputAsCCharsPtr := &inputAsCChars[0]
+
+ // calculate buffer size for input
+ bytesLeftInCSize := C.size_t(len(inputAsCChars))
+
+ // calculate buffer size for output
+ bytesLeftOutCSize := C.size_t(len(inputAsCChars))
+
+ // create output buffer
+ outputChars := make([]C.char, bytesLeftOutCSize)
+
+ // output buffer pointer for C
+ outputCharsPtr := &outputChars[0]
+
+ // call iconv for conversion of charsets, return on error
+ _, errno = C.iconv(iconv, &inputAsCCharsPtr, &bytesLeftInCSize, &outputCharsPtr, &bytesLeftOutCSize)
+ if errno != nil {
+ return "", errno
+ }
+
+ // conver output buffer to go string
+ output = C.GoString((*C.char)(&outputChars[0]))
+
+ return output, nil
+}
+
+// Internal helper function, wrapped by other functions
+func convertGoRuneToWchar(r rune) (output Wchar, err error) {
+ // quick return when input is an empty string
+ if r == '\000' {
+ return Wchar(0), nil
+ }
+
+ // open iconv
+ iconv, errno := C.iconv_open(iconvCharsetWchar, iconvCharsetUtf8)
+ if iconv == nil || errno != nil {
+ return Wchar(0), fmt.Errorf("Could not open iconv instance: %s", errno)
+ }
+ defer C.iconv_close(iconv)
+
+ // bufferSizes for C
+ bytesLeftInCSize := C.size_t(4)
+ bytesLeftOutCSize := C.size_t(4 * 4)
+ // TODO/FIXME: the last 4 bytes as indicated by bytesLeftOutCSize wont be used...
+ // iconv assumes each given char to be one wchar.
+ // in this case we know that the given 4 chars will actually be one unicode-point and therefore will result in one wchar.
+ // hence, we give the iconv library a buffer of 4 char's size, and tell the library that it has a buffer of 32 char's size.
+ // if the rune would actually contain 2 unicode-point's this will result in massive failure (and probably the end of a process' life)
+
+ // input for C. makes a copy using C malloc and therefore should be free'd.
+ runeCString := C.CString(string(r))
+ defer C.free(unsafe.Pointer(runeCString))
+
+ // create output buffer
+ outputChars := make([]C.char, 4)
+
+ // output buffer pointer for C
+ outputCharsPtr := &outputChars[0]
+
+ // call iconv for conversion of charsets
+ _, errno = C.iconv(iconv, &runeCString, &bytesLeftInCSize, &outputCharsPtr, &bytesLeftOutCSize)
+ if errno != nil {
+ return '\000', errno
+ }
+
+ // convert C.char's to Wchar
+ wcharAsByteAry := make([]byte, 4)
+ wcharAsByteAry[0] = byte(outputChars[0])
+ wcharAsByteAry[1] = byte(outputChars[1])
+ wcharAsByteAry[2] = byte(outputChars[2])
+ wcharAsByteAry[3] = byte(outputChars[3])
+
+ // combine 4 position byte slice into uint32 and convert to Wchar.
+ wcharAsUint32 := binary.LittleEndian.Uint32(wcharAsByteAry)
+ output = Wchar(wcharAsUint32)
+
+ return output, nil
+}
+
+// Internal helper function, wrapped by several other functions
+func convertWcharToGoRune(w Wchar) (output rune, err error) {
+ // return if len(input) == 0
+ if w == 0 {
+ return '\000', nil
+ }
+
+ // open iconv
+ iconv, errno := C.iconv_open(iconvCharsetUtf8, iconvCharsetWchar)
+ if iconv == nil || errno != nil {
+ return '\000', fmt.Errorf("Could not open iconv instance: %s", errno.Error())
+ }
+ defer C.iconv_close(iconv)
+
+ // split Wchar into bytes
+ wcharAsBytes := make([]byte, 4)
+ binary.LittleEndian.PutUint32(wcharAsBytes, uint32(w))
+
+ // place the wcharAsBytes into wcharAsCChars
+ // TODO: use unsafe.Pointer here to do the conversion?
+ wcharAsCChars := make([]C.char, 0, 4)
+ for i := 0; i < 4; i++ {
+ wcharAsCChars = append(wcharAsCChars, C.char(wcharAsBytes[i]))
+ }
+
+ // pointer to the first wcharAsCChars
+ wcharAsCCharsPtr := &wcharAsCChars[0]
+
+ // calculate buffer size for input
+ bytesLeftInCSize := C.size_t(4)
+
+ // calculate buffer size for output
+ bytesLeftOutCSize := C.size_t(4)
+
+ // create output buffer
+ outputChars := make([]C.char, 4)
+
+ // output buffer pointer for C
+ outputCharsPtr := &outputChars[0]
+
+ // call iconv for conversion of charsets
+ _, errno = C.iconv(iconv, &wcharAsCCharsPtr, &bytesLeftInCSize, &outputCharsPtr, &bytesLeftOutCSize)
+ if errno != nil {
+ return '\000', errno
+ }
+
+ // convert outputChars ([]int8, len 4) to Wchar
+ // TODO: can this conversion be done easier by using this: ?
+ // output = *((*rune)(unsafe.Pointer(&outputChars[0])))
+ runeAsByteAry := make([]byte, 4)
+ runeAsByteAry[0] = byte(outputChars[0])
+ runeAsByteAry[1] = byte(outputChars[1])
+ runeAsByteAry[2] = byte(outputChars[2])
+ runeAsByteAry[3] = byte(outputChars[3])
+
+ // combine 4 position byte slice into uint32 and convert to rune.
+ runeAsUint32 := binary.LittleEndian.Uint32(runeAsByteAry)
+ output = rune(runeAsUint32)
+
+ return output, nil
+}
diff --git a/vendor/github.com/GeertJohan/cgo.wchar/readme.md b/vendor/github.com/GeertJohan/cgo.wchar/readme.md
new file mode 100644
index 0000000..1be1ef5
--- /dev/null
+++ b/vendor/github.com/GeertJohan/cgo.wchar/readme.md
@@ -0,0 +1,24 @@
+## cgo.wchar
+
+Helps with using wchars with cgo.
+
+### Example
+Example from the go.hid library:
+```go
+func (dev *Device) ManufacturerString() (string, error) {
+ // create WcharString
+ ws := wchar.NewWcharString(100)
+
+ // retrieve manufacturer string from hid
+ res := C.hid_get_manufacturer_string(dev.hidHandle, (*C.wchar_t)(ws.Pointer()), 100)
+ if res != 0 {
+ return "", dev.lastError()
+ }
+
+ // get WcharString as Go string
+ str := ws.GoString()
+
+ // all done
+ return str, nil
+}
+```
diff --git a/vendor/github.com/GeertJohan/cgo.wchar/wchar.go b/vendor/github.com/GeertJohan/cgo.wchar/wchar.go
new file mode 100644
index 0000000..6c0188a
--- /dev/null
+++ b/vendor/github.com/GeertJohan/cgo.wchar/wchar.go
@@ -0,0 +1,159 @@
+package wchar
+
+import (
+ "unsafe"
+)
+
+// return pointer to this Wchar
+func (w Wchar) Pointer() *Wchar {
+ return &w
+}
+
+// convert Wchar to Go rune
+// will return an error when conversion failed.
+func (w Wchar) GoRune() (rune, error) {
+ r, err := convertWcharToGoRune(w)
+ if err != nil {
+ return '\000', err
+ }
+ return r, nil
+}
+
+func FromGoRune(r rune) (Wchar, error) {
+ return convertGoRuneToWchar(r)
+}
+
+// FromWcharPtr converts a *C.wchar_t to a Go Wchar
+func FromWcharPtr(ptr unsafe.Pointer) Wchar {
+ // quick return for null pointer
+ if uintptr(ptr) == 0x0 {
+ return Wchar(0)
+ }
+
+ return *((*Wchar)(ptr))
+}
+
+// go representation of a wchar string (array)
+type WcharString []Wchar
+
+// NewWcharString creates a new WcharString with given length.
+// This is required when the WcharString is being used as write buffer for a call to a C function.
+func NewWcharString(length int) WcharString {
+ return make(WcharString, length)
+}
+
+// FromGoString creates a WcharString from a Go string
+func FromGoString(s string) (WcharString, error) {
+ return convertGoStringToWcharString(s)
+}
+
+// FromWcharStringPtr creates a WcharString from a *C.wchar_t.
+// It finds the end of the *C.wchar_t string by finding the null terminator.
+func FromWcharStringPtr(first unsafe.Pointer) WcharString {
+ // quick return for null pointer
+ if uintptr(first) == 0x0 {
+ return NewWcharString(0)
+ }
+
+ // Get uintptr from first wchar_t
+ wcharPtr := uintptr(first)
+
+ // allocate new WcharString to fill with data. Cap is unknown
+ ws := make(WcharString, 0)
+
+ // append data using pointer arithmic
+ var w Wchar
+ for {
+ // get Wchar value
+ w = *((*Wchar)(unsafe.Pointer(wcharPtr)))
+
+ // check for null byte terminator
+ if w == 0 {
+ break
+ }
+
+ // append Wchar to WcharString
+ ws = append(ws, w)
+
+ // increment pointer 4 bytes
+ wcharPtr += 4
+ }
+
+ // all done
+ return ws
+}
+
+// convert a *C.wchar_t and length int to a WcharString
+func FromWcharStringPtrN(first unsafe.Pointer, length int) WcharString {
+ if uintptr(first) == 0x0 {
+ return NewWcharString(0)
+ }
+
+ // Get uintptr from first wchar_t
+ wcharPtr := uintptr(first)
+
+ // allocate new WcharString to fill with data. Only set cap, later use append
+ ws := make(WcharString, 0, length)
+
+ // append data using pointer arithmic
+ var x Wchar
+ for i := 0; i < length; i++ {
+ // get Wchar
+ x = *((*Wchar)(unsafe.Pointer(wcharPtr)))
+
+ // check for null byte terminator
+ if x == 0 {
+ break
+ }
+
+ // append Wchar to WcharString
+ ws = append(ws, x)
+
+ // increment pointer 4 bytes
+ wcharPtr += 4
+ }
+
+ // all done
+ return ws
+}
+
+// return pointer to first element
+func (ws WcharString) Pointer() *Wchar {
+ return &ws[0]
+}
+
+// convert WcharString to Go string
+// will return an error when conversion failed.
+func (ws WcharString) GoString() (string, error) {
+ str, err := convertWcharStringToGoString(ws)
+ if err != nil {
+ return "", err
+ }
+ return str, nil
+}
+
+// convert a null terminated *C.wchar_t to a Go string
+// convenient wrapper for WcharPtrToWcharString(first).GoString()
+func WcharStringPtrToGoString(first unsafe.Pointer) (string, error) {
+ if uintptr(first) == 0x0 {
+ return "", nil
+ }
+ return convertWcharStringToGoString(FromWcharStringPtr(first))
+}
+
+// convert a *C.wchar_t and length int to a Go string
+// convenient wrapper for WcharPtrIntToWcharString(first, length).GoString()
+func WcharStringPtrNToGoString(first unsafe.Pointer, length int) (string, error) {
+ if uintptr(first) == 0x0 {
+ return "", nil
+ }
+ return convertWcharStringToGoString(FromWcharStringPtrN(first, length))
+}
+
+// convenient wrapper for WcharPtrToWcharString(first).GoString()
+func WcharPtrToGoRune(first unsafe.Pointer) (rune, error) {
+ if uintptr(first) == 0x0 {
+ return '\000', nil
+ }
+ return convertWcharToGoRune(FromWcharPtr(first))
+}
diff --git a/vendor/github.com/GeertJohan/cgo.wchar/wchar_notwin.go b/vendor/github.com/GeertJohan/cgo.wchar/wchar_notwin.go
new file mode 100644
index 0000000..dab4663
--- /dev/null
+++ b/vendor/github.com/GeertJohan/cgo.wchar/wchar_notwin.go
@@ -0,0 +1,6 @@
+// +build !windows
+
+package wchar
+
+// go representation of a wchar
+type Wchar int32
diff --git a/vendor/github.com/GeertJohan/cgo.wchar/wchar_test.go b/vendor/github.com/GeertJohan/cgo.wchar/wchar_test.go
new file mode 100644
index 0000000..4333059
--- /dev/null
+++ b/vendor/github.com/GeertJohan/cgo.wchar/wchar_test.go
@@ -0,0 +1,105 @@
+package wchar
+
+import (
+ "testing"
+)
+
+func TestStringConversion(t *testing.T) {
+ testString := "Iñtërnâtiônàlizætiøn"
+ expectedWcharString := WcharString{
+ 73, 241, 116, 235, 114,
+ 110, 226, 116, 105, 244,
+ 110, 224, 108, 105, 122,
+ 230, 116, 105, 248, 110, 0,
+ }
+
+ w, err := FromGoString(testString)
+ if err != nil {
+ t.Fatalf("Error on conversion. %s", err.Error())
+ }
+
+ if len(w) != len(expectedWcharString) {
+ t.Fatal("Converted string did not match expected WcharString. Lengths are different.")
+ }
+
+ for i := 0; i < len(w); i++ {
+ if w[i] != expectedWcharString[i] {
+ t.Fatalf("Converted string did not match expected WcharString. Fault at position %d. %d!=%d\n", i, w[i], expectedWcharString[i])
+ }
+ }
+}
+
+func TestWcharStringConversion(t *testing.T) {
+ testWcharString := WcharString{
+ 73, 241, 116, 235, 114,
+ 110, 226, 116, 105, 244,
+ 110, 224, 108, 105, 122,
+ 230, 116, 105, 248, 110, 0,
+ }
+ expectedGoString := "Iñtërnâtiônàlizætiøn"
+
+ str, err := testWcharString.GoString()
+ if err != nil {
+ t.Fatalf("Error on conversion. %s", err.Error())
+ }
+
+ if len(str) != len(expectedGoString) {
+ t.Fatal("Converted WcharString did not match expected string. Lengths are different.")
+ }
+
+ for i := 0; i < len(str); i++ {
+ if str[i] != expectedGoString[i] {
+ t.Fatalf("Converted WcharString did not match expected string. Fault at position %d. %d!=%d\n", i, str[i], expectedGoString[i])
+ }
+ }
+}
+
+func TestRuneConversion(t *testing.T) {
+ testRunes := []rune{
+ 'I', 'ñ', 't', 'ë', 'r',
+ 'n', 'â', 't', 'i', 'ô',
+ 'n', 'à', 'l', 'i', 'z',
+ 'æ', 't', 'i', 'ø', 'n',
+ }
+ expectedWchars := []Wchar{
+ 73, 241, 116, 235, 114,
+ 110, 226, 116, 105, 244,
+ 110, 224, 108, 105, 122,
+ 230, 116, 105, 248, 110,
+ }
+
+ for i, testRune := range testRunes {
+ w, err := FromGoRune(testRune)
+ if err != nil {
+ t.Fatalf("Error on conversion. %s", err.Error())
+ }
+ if w != expectedWchars[i] {
+ t.Fatalf("Converted rune did not match expected Wchar. Fault at position %d. %d!=%d\n", i, w, expectedWchars[i])
+ }
+ }
+}
+
+func TestWcharConversion(t *testing.T) {
+ testWchars := []Wchar{
+ 73, 241, 116, 235, 114,
+ 110, 226, 116, 105, 244,
+ 110, 224, 108, 105, 122,
+ 230, 116, 105, 248, 110,
+ }
+ expectedRunes := []rune{
+ 'I', 'ñ', 't', 'ë', 'r',
+ 'n', 'â', 't', 'i', 'ô',
+ 'n', 'à', 'l', 'i', 'z',
+ 'æ', 't', 'i', 'ø', 'n',
+ }
+
+ for i, testWchar := range testWchars {
+ r, err := testWchar.GoRune()
+ if err != nil {
+ t.Fatalf("Error on conversion. %s", err.Error())
+ }
+ if r != expectedRunes[i] {
+ t.Fatalf("Converted Wchar did not match expected rune. Fault at position %d. %d!=%d\n", i, r, expectedRunes[i])
+ }
+ }
+}
diff --git a/vendor/github.com/GeertJohan/cgo.wchar/wchar_windows.go b/vendor/github.com/GeertJohan/cgo.wchar/wchar_windows.go
new file mode 100644
index 0000000..7c7c930
--- /dev/null
+++ b/vendor/github.com/GeertJohan/cgo.wchar/wchar_windows.go
@@ -0,0 +1,4 @@
+package wchar
+
+// go representation of a wchar
+type Wchar uint16
diff --git a/vendor/github.com/GeertJohan/go.hid/.gitignore b/vendor/github.com/GeertJohan/go.hid/.gitignore
new file mode 100644
index 0000000..2c8f591
--- /dev/null
+++ b/vendor/github.com/GeertJohan/go.hid/.gitignore
@@ -0,0 +1 @@
+*sublime* \ No newline at end of file
diff --git a/vendor/github.com/GeertJohan/go.hid/LICENSE b/vendor/github.com/GeertJohan/go.hid/LICENSE
new file mode 100644
index 0000000..cb489ee
--- /dev/null
+++ b/vendor/github.com/GeertJohan/go.hid/LICENSE
@@ -0,0 +1,22 @@
+Copyright (c) 2012, Geert-Johan Riemer
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/GeertJohan/go.hid/LICENSE-hidapi.txt b/vendor/github.com/GeertJohan/go.hid/LICENSE-hidapi.txt
new file mode 100644
index 0000000..e3f3380
--- /dev/null
+++ b/vendor/github.com/GeertJohan/go.hid/LICENSE-hidapi.txt
@@ -0,0 +1,9 @@
+ HIDAPI - Multi-Platform library for
+ communication with HID devices.
+
+ Copyright 2009, Alan Ott, Signal 11 Software.
+ All Rights Reserved.
+
+ This software may be used by anyone for any reason so
+ long as the copyright notice in the source files
+ remains intact.
diff --git a/vendor/github.com/GeertJohan/go.hid/hid.go b/vendor/github.com/GeertJohan/go.hid/hid.go
new file mode 100644
index 0000000..0a57a66
--- /dev/null
+++ b/vendor/github.com/GeertJohan/go.hid/hid.go
@@ -0,0 +1,707 @@
+package hid
+
+/**
+ * This code is licensed under a Simplified BSD License. For more information read the LICENSE file that came with this package.
+ */
+
+// This file wraps github.com/signall11/hidapi
+// It's based on their hidapi.h, which this file also includes and actually wraps.
+
+/*
+#cgo linux pkg-config: libusb-1.0
+#cgo linux LDFLAGS: -lusb-1.0
+#cgo darwin LDFLAGS: -framework IOKit -framework CoreFoundation
+#cgo windows LDFLAGS: -lsetupapi
+#include "hidapi.h"
+#include <stdlib.h>
+*/
+import "C"
+
+import (
+ "errors"
+ "fmt"
+ "sync"
+ "unsafe"
+
+ "github.com/GeertJohan/cgo.wchar"
+)
+
+var errNotImplemented = errors.New("not implemented yet")
+
+//++ FIXME: How to do this on binary end? C.hid_exit()
+// wrap as hid.Exit() ???? that sounds bad..
+
+// struct hid_device_;
+// typedef struct hid_device_ hid_device; /**< opaque hidapi structure */
+type Device struct {
+ hidHandle *C.hid_device
+}
+
+// /** hidapi info structure */
+// struct hid_device_info {
+// /** Platform-specific device path */
+// char *path;
+// /** Device Vendor ID */
+// unsigned short vendor_id;
+// /** Device Product ID */
+// unsigned short product_id;
+// /** Serial Number */
+// wchar_t *serial_number;
+// /** Device Release Number in binary-coded decimal,
+// also known as Device Version Number */
+// unsigned short release_number;
+// /** Manufacturer String */
+// wchar_t *manufacturer_string;
+// /** Product string */
+// wchar_t *product_string;
+// /** Usage Page for this Device/Interface
+// (Windows/Mac only). */
+// unsigned short usage_page;
+// /** Usage for this Device/Interface
+// (Windows/Mac only).*/
+// unsigned short usage;
+// /** The USB interface which this logical device
+// represents. Valid on both Linux implementations
+// in all cases, and valid on the Windows implementation
+// only if the device contains more than one interface. */
+// int interface_number;
+// /** Pointer to the next device */
+// struct hid_device_info *next;
+// };
+
+// DeviceInfo provides all information about an HID device.
+type DeviceInfo struct {
+ Path string
+ VendorId uint16
+ ProductId uint16
+ SerialNumber string
+ ReleaseNumber uint16
+ Manufacturer string
+ Product string
+ UsagePage uint16 // Only being used with windows/mac, which are not supported by go.hid yet.
+ Usage uint16 // Only being used with windows/mac, which are not supported by go.hid yet.
+ InterfaceNumber int
+}
+
+// Get actual hid *Device from DeviceInfo object
+func (di *DeviceInfo) Device() (*Device, error) {
+ return Open(di.VendorId, di.ProductId, di.SerialNumber)
+}
+
+// List of DeviceInfo objects
+type DeviceInfoList []*DeviceInfo
+
+// /** @brief Initialize the HIDAPI library.
+//
+// This function initializes the HIDAPI library. Calling it is not
+// strictly necessary, as it will be called automatically by
+// hid_enumerate() and any of the hid_open_*() functions if it is
+// needed. This function should be called at the beginning of
+// execution however, if there is a chance of HIDAPI handles
+// being opened by different threads simultaneously.
+//
+// @ingroup API
+//
+// @returns
+// This function returns 0 on success and -1 on error.
+// */
+// int HID_API_EXPORT HID_API_CALL hid_init(void);
+
+var initOnce sync.Once
+
+// Internal use. Called to initialize the C hid library in a threadsafe way.
+func hidInit() error {
+ var err error
+
+ initFunc := func() {
+ errInt := C.hid_init()
+ if errInt == -1 {
+ err = errors.New("Could not initialize hidapi.")
+ }
+ }
+
+ initOnce.Do(initFunc)
+
+ return err
+}
+
+// /** @brief Finalize the HIDAPI library.
+//
+// This function frees all of the static data associated with
+// HIDAPI. It should be called at the end of execution to avoid
+// memory leaks.
+//
+// @ingroup API
+//
+// @returns
+// This function returns 0 on success and -1 on error.
+// */
+// int HID_API_EXPORT HID_API_CALL hid_exit(void);
+
+// TODO
+func Exit() error {
+ //++ return error?
+ //++
+ return errNotImplemented
+}
+
+// /** @brief Enumerate the HID Devices.
+//
+// This function returns a linked list of all the HID devices
+// attached to the system which match vendor_id and product_id.
+// If @p vendor_id is set to 0 then any vendor matches.
+// If @p product_id is set to 0 then any product matches.
+// If @p vendor_id and @p product_id are both set to 0, then
+// all HID devices will be returned.
+//
+// @ingroup API
+// @param vendor_id The Vendor ID (VID) of the types of device
+// to open.
+// @param product_id The Product ID (PID) of the types of
+// device to open.
+//
+// @returns
+// This function returns a pointer to a linked list of type
+// struct #hid_device, containing information about the HID devices
+// attached to the system, or NULL in the case of failure. Free
+// this linked list by calling hid_free_enumeration().
+// */
+// struct hid_device_info HID_API_EXPORT * HID_API_CALL hid_enumerate(unsigned short vendor_id, unsigned short product_id);
+
+// Retrieve a list of DeviceInfo objects that match the given vendorId and productId.
+// To retrieve a list of all HID devices': use 0x0 as vendorId and productId.
+func Enumerate(vendorId uint16, productId uint16) (DeviceInfoList, error) {
+ var err error
+
+ // call C.hid_enumerate with given parameters
+ first := C.hid_enumerate(C.ushort(vendorId), C.ushort(productId))
+
+ // check for failure
+ if first == nil {
+ return nil, errors.New("Could not enumerate devices. Failure.")
+ }
+
+ // defer free-ing first
+ defer C.hid_free_enumeration(first)
+
+ // make DeviceInfoList to fill
+ dil := make(DeviceInfoList, 0)
+
+ // loop over linked list to fill DeviceInfoList
+ for next := first; next != nil; next = next.next {
+
+ // create DeviceInfo instance from next hid_device_info
+ di := &DeviceInfo{
+ Path: C.GoString(next.path),
+ VendorId: uint16(next.vendor_id),
+ ProductId: uint16(next.product_id),
+ ReleaseNumber: uint16(next.release_number),
+ UsagePage: uint16(next.usage_page),
+ Usage: uint16(next.usage),
+ InterfaceNumber: int(next.interface_number),
+ }
+
+ // get and convert serial_number from next hid_device_info
+ di.SerialNumber, err = wchar.WcharStringPtrToGoString(unsafe.Pointer(next.serial_number))
+ if err != nil {
+ di.SerialNumber = ""
+ }
+
+ // get and convert manufacturer_string from next hid_device_info
+ di.Manufacturer, err = wchar.WcharStringPtrToGoString(unsafe.Pointer(next.manufacturer_string))
+ if err != nil {
+ di.Manufacturer = ""
+ }
+
+ // get and convert product_string from next hid_device_info
+ di.Product, err = wchar.WcharStringPtrToGoString(unsafe.Pointer(next.product_string))
+ if err != nil {
+ return nil, fmt.Errorf("Could not convert *C.wchar_t product_string from hid_device_info to go string. Error: %s\n", err)
+ }
+
+ // store di in dil
+ dil = append(dil, di)
+ }
+
+ // all done
+ return dil, nil
+}
+
+// /** @brief Open a HID device using a Vendor ID (VID), Product ID
+// (PID) and optionally a serial number.
+//
+// If @p serial_number is NULL, the first device with the
+// specified VID and PID is opened.
+//
+// @ingroup API
+// @param vendor_id The Vendor ID (VID) of the device to open.
+// @param product_id The Product ID (PID) of the device to open.
+// @param serial_number The Serial Number of the device to open
+// (Optionally NULL).
+//
+// @returns
+// This function returns a pointer to a #hid_device object on
+// success or NULL on failure.
+// */
+// HID_API_EXPORT hid_device * HID_API_CALL hid_open(unsigned short vendor_id, unsigned short product_id, const wchar_t *serial_number);
+
+// Open HID by vendorId, productId and serialNumber.
+// SerialNumber is optional and can be empty string ("").
+// Returns a *Devica and an error.
+func Open(vendorId uint16, productId uint16, serialNumber string) (*Device, error) {
+ var err error
+
+ // call hidInit(). hidInit() checks if actual call to hid_hidInit() is required.
+ if err = hidInit(); err != nil {
+ return nil, err
+ }
+
+ // serialNumberWchar value. Default nil.
+ serialNumberWcharPtr := (*C.wchar_t)(nil)
+
+ // if a serialNumber is given, create a WcharString and set the pointer to it's first position pointer
+ if len(serialNumber) > 0 {
+ serialNumberWchar, err := wchar.FromGoString(serialNumber)
+ if err != nil {
+ return nil, errors.New("Unable to convert serialNumber to WcharString")
+ }
+ serialNumberWcharPtr = (*C.wchar_t)(unsafe.Pointer(serialNumberWchar.Pointer()))
+ }
+
+ // call hid_open()
+ hidHandle := C.hid_open(C.ushort(vendorId), C.ushort(productId), serialNumberWcharPtr)
+
+ if hidHandle == nil {
+ return nil, errors.New("Unable to open device.")
+ }
+
+ dev := &Device{
+ hidHandle: hidHandle,
+ }
+
+ // done
+ return dev, nil
+}
+
+// /** @brief Open a HID device by its path name.
+//
+// The path name be determined by calling hid_enumerate(), or a
+// platform-specific path name can be used (eg: /dev/hidraw0 on
+// Linux).
+//
+// @ingroup API
+// @param path The path name of the device to open
+//
+// @returns
+// This function returns a pointer to a #hid_device object on
+// success or NULL on failure.
+// */
+// HID_API_EXPORT hid_device * HID_API_CALL hid_open_path(const char *path);
+
+// Open hid by path.
+// Returns a *Device and an error
+func OpenPath(path string) (*Device, error) {
+ // call hidInit(). hidInit() checks if actual call to hid_hidInit() is required.
+ if err := hidInit(); err != nil {
+ return nil, err
+ }
+
+ // conver given path to CChar
+ cPath := C.CString(path)
+ defer C.free(unsafe.Pointer(cPath))
+
+ // call hid_open_path and check for error
+ dev := C.hid_open_path(cPath)
+ if dev == nil {
+ return nil, errors.New("Could not open device by path.")
+ }
+
+ d := &Device{
+ hidHandle: dev,
+ }
+
+ // all done
+ return d, nil
+}
+
+// /** @brief Write an Output report to a HID device.
+//
+// The first byte of @p data[] must contain the Report ID. For
+// devices which only support a single report, this must be set
+// to 0x0. The remaining bytes contain the report data. Since
+// the Report ID is mandatory, calls to hid_write() will always
+// contain one more byte than the report contains. For example,
+// if a hid report is 16 bytes long, 17 bytes must be passed to
+// hid_write(), the Report ID (or 0x0, for devices with a
+// single report), followed by the report data (16 bytes). In
+// this example, the length passed in would be 17.
+//
+// hid_write() will send the data on the first OUT endpoint, if
+// one exists. If it does not, it will send the data through
+// the Control Endpoint (Endpoint 0).
+//
+// @ingroup API
+// @param device A device handle returned from hid_open().
+// @param data The data to send, including the report number as
+// the first byte.
+// @param length The length in bytes of the data to send.
+//
+// @returns
+// This function returns the actual number of bytes written and
+// -1 on error.
+// */
+// int HID_API_EXPORT HID_API_CALL hid_write(hid_device *device, const unsigned char *data, size_t length);
+
+// Write data to hid device.
+// Implementing the io.Writer interface with this method.
+func (dev *Device) Write(b []byte) (n int, err error) {
+ // quick return when b is empty
+ if len(b) == 0 {
+ return 0, nil
+ }
+
+ // write data to hid device and handle error
+ res := C.hid_write(dev.hidHandle, (*C.uchar)(&b[0]), C.size_t(len(b)))
+ resInt := int(res)
+ if resInt == -1 {
+ return 0, dev.lastError()
+ }
+
+ // all done
+ return resInt, nil
+}
+
+// /** @brief Read an Input report from a HID device with timeout.
+//
+// Input reports are returned
+// to the host through the INTERRUPT IN endpoint. The first byte will
+// contain the Report number if the device uses numbered reports.
+//
+// @ingroup API
+// @param device A device handle returned from hid_open().
+// @param data A buffer to put the read data into.
+// @param length The number of bytes to read. For devices with
+// multiple reports, make sure to read an extra byte for
+// the report number.
+// @param milliseconds timeout in milliseconds or -1 for blocking wait.
+//
+// @returns
+// This function returns the actual number of bytes read and
+// -1 on error.
+// */
+// int HID_API_EXPORT HID_API_CALL hid_read_timeout(hid_device *dev, unsigned char *data, size_t length, int milliseconds);
+
+// Read from hid device with given timeout
+func (dev *Device) ReadTimeout(b []byte, timeout int) (n int, err error) {
+ // quick return when b is empty
+ if len(b) == 0 {
+ return 0, nil
+ }
+
+ // read data from hid device and handle error
+ res := C.hid_read_timeout(dev.hidHandle, (*C.uchar)(&b[0]), C.size_t(len(b)), C.int(timeout))
+ resInt := int(res)
+ if resInt == -1 {
+ return 0, dev.lastError()
+ }
+
+ // all done
+ return resInt, nil
+}
+
+// /** @brief Read an Input report from a HID device.
+//
+// Input reports are returned
+// to the host through the INTERRUPT IN endpoint. The first byte will
+// contain the Report number if the device uses numbered reports.
+//
+// @ingroup API
+// @param device A device handle returned from hid_open().
+// @param data A buffer to put the read data into.
+// @param length The number of bytes to read. For devices with
+// multiple reports, make sure to read an extra byte for
+// the report number.
+//
+// @returns
+// This function returns the actual number of bytes read and
+// -1 on error.
+// */
+// int HID_API_EXPORT HID_API_CALL hid_read(hid_device *device, unsigned char *data, size_t length);
+
+// Read data from HID
+// Implementing the io.Reader interface with this method.
+func (dev *Device) Read(b []byte) (n int, err error) {
+ // quick return when b is empty
+ if len(b) == 0 {
+ return 0, nil
+ }
+
+ // read data from hid device and handle error
+ res := C.hid_read(dev.hidHandle, (*C.uchar)(&b[0]), C.size_t(len(b)))
+ resInt := int(res)
+ if resInt == -1 {
+ return 0, dev.lastError()
+ }
+
+ // all done
+ return resInt, nil
+}
+
+///** @brief Set the device handle to be non-blocking.
+//
+// In non-blocking mode calls to hid_read() will return
+// immediately with a value of 0 if there is no data to be
+// read. In blocking mode, hid_read() will wait (block) until
+// there is data to read before returning.
+//
+// Nonblocking can be turned on and off at any time.
+//
+// @ingroup API
+// @param device A device handle returned from hid_open().
+// @param nonblock enable or not the nonblocking reads
+// - 1 to enable nonblocking
+// - 0 to disable nonblocking.
+//
+// @returns
+// This function returns 0 on success and -1 on error.
+//*/
+//int HID_API_EXPORT HID_API_CALL hid_set_nonblocking(hid_device *device, int nonblock);
+
+// In non-blocking mode calls to hid_read() will return immediately with a value of 0 if there is no data to be read.
+// In blocking mode, hid_read() will wait (block) until there is data to read before returning.
+func (dev *Device) SetReadWriteNonBlocking(nonblocking bool) error {
+ // convert blocking bool to nonblocking int
+ nonblock := 0
+ if nonblocking {
+ nonblock = 1
+ }
+
+ // make the call and return error when call failed
+ if C.hid_set_nonblocking(dev.hidHandle, C.int(nonblock)) != 0 {
+ return dev.lastError()
+ }
+
+ // all done
+ return nil
+}
+
+// /** @brief Send a Feature report to the device.
+//
+// Feature reports are sent over the Control endpoint as a
+// Set_Report transfer. The first byte of @p data[] must
+// contain the Report ID. For devices which only support a
+// single report, this must be set to 0x0. The remaining bytes
+// contain the report data. Since the Report ID is mandatory,
+// calls to hid_send_feature_report() will always contain one
+// more byte than the report contains. For example, if a hid
+// report is 16 bytes long, 17 bytes must be passed to
+// hid_send_feature_report(): the Report ID (or 0x0, for
+// devices which do not use numbered reports), followed by the
+// report data (16 bytes). In this example, the length passed
+// in would be 17.
+//
+// @ingroup API
+// @param device A device handle returned from hid_open().
+// @param data The data to send, including the report number as
+// the first byte.
+// @param length The length in bytes of the data to send, including
+// the report number.
+//
+// @returns
+// This function returns the actual number of bytes written and
+// -1 on error.
+// */
+// int HID_API_EXPORT HID_API_CALL hid_send_feature_report(hid_device *device, const unsigned char *data, size_t length);
+
+// Send a feature report
+func (dev *Device) SendFeatureReport(data []byte) (int, error) {
+ res := C.hid_send_feature_report(dev.hidHandle, (*C.uchar)(&data[0]), C.size_t(len(data)))
+ resInt := int(res)
+ if resInt == -1 {
+ return 0, dev.lastError()
+ }
+ return resInt, nil
+}
+
+// /** @brief Get a feature report from a HID device.
+//
+// Make sure to set the first byte of @p data[] to the Report
+// ID of the report to be read. Make sure to allow space for
+// this extra byte in @p data[].
+//
+// @ingroup API
+// @param device A device handle returned from hid_open().
+// @param data A buffer to put the read data into, including
+// the Report ID. Set the first byte of @p data[] to the
+// Report ID of the report to be read.
+// @param length The number of bytes to read, including an
+// extra byte for the report ID. The buffer can be longer
+// than the actual report.
+//
+// @returns
+// This function returns the number of bytes read and
+// -1 on error.
+// */
+// int HID_API_EXPORT HID_API_CALL hid_get_feature_report(hid_device *device, unsigned char *data, size_t length);
+
+// Get a FeatureReport from the HID device
+func (dev *Device) GetFeatureReport(reportId byte, reportDataSize int) ([]byte, error) {
+ reportSize := reportDataSize + 1
+ buf := make([]byte, reportSize)
+ buf[0] = reportId
+
+ // send feature report
+ res := C.hid_get_feature_report(dev.hidHandle, (*C.uchar)(&buf[0]), C.size_t(reportSize))
+ resInt := int(res)
+ if resInt == -1 {
+ return nil, dev.lastError()
+ }
+
+ // all done
+ return buf, nil
+}
+
+// /** @brief Close a HID device.
+//
+// @ingroup API
+// @param device A device handle returned from hid_open().
+// */
+// void HID_API_EXPORT HID_API_CALL hid_close(hid_device *device);
+
+// Close the device handle
+func (dev *Device) Close() {
+ C.hid_close(dev.hidHandle)
+}
+
+// /** @brief Get The Manufacturer String from a HID device.
+//
+// @ingroup API
+// @param device A device handle returned from hid_open().
+// @param string A wide string buffer to put the data into.
+// @param maxlen The length of the buffer in multiples of wchar_t.
+//
+// @returns
+// This function returns 0 on success and -1 on error.
+// */
+// int HID_API_EXPORT_CALL hid_get_manufacturer_string(hid_device *device, wchar_t *string, size_t maxlen);
+
+// Get manufacturer string from device
+func (dev *Device) ManufacturerString() (string, error) {
+ // create WcharString
+ ws := wchar.NewWcharString(100)
+
+ // retrieve manufacturer string from hid
+ res := C.hid_get_manufacturer_string(dev.hidHandle, (*C.wchar_t)(unsafe.Pointer(ws.Pointer())), 100)
+ if res != 0 {
+ return "", dev.lastError()
+ }
+
+ // all done
+ return ws.GoString()
+}
+
+// /** @brief Get The Product String from a HID device.
+//
+// @ingroup API
+// @param device A device handle returned from hid_open().
+// @param string A wide string buffer to put the data into.
+// @param maxlen The length of the buffer in multiples of wchar_t.
+//
+// @returns
+// This function returns 0 on success and -1 on error.
+// */
+// int HID_API_EXPORT_CALL hid_get_product_string(hid_device *device, wchar_t *string, size_t maxlen);
+
+// Get product string from device
+func (dev *Device) ProductString() (string, error) {
+ // create WcharString
+ ws := wchar.NewWcharString(100)
+
+ // retrieve manufacturer string from hid
+ res := C.hid_get_product_string(dev.hidHandle, (*C.wchar_t)(unsafe.Pointer(ws.Pointer())), 100)
+ if res != 0 {
+ return "", dev.lastError()
+ }
+
+ // all done
+ return ws.GoString()
+}
+
+// /** @brief Get The Serial Number String from a HID device.
+//
+// @ingroup API
+// @param device A device handle returned from hid_open().
+// @param string A wide string buffer to put the data into.
+// @param maxlen The length of the buffer in multiples of wchar_t.
+//
+// @returns
+// This function returns 0 on success and -1 on error.
+// */
+// int HID_API_EXPORT_CALL hid_get_serial_number_string(hid_device *device, wchar_t *string, size_t maxlen);
+
+// Get Serial number string from device
+func (dev *Device) SerialNumberString() (string, error) {
+ // create WcharString
+ ws := wchar.NewWcharString(100)
+
+ // retrieve manufacturer string from hid
+ res := C.hid_get_serial_number_string(dev.hidHandle, (*C.wchar_t)(unsafe.Pointer(ws.Pointer())), 100)
+ if res != 0 {
+ return "", dev.lastError()
+ }
+
+ // all done
+ return ws.GoString()
+}
+
+// /** @brief Get a string from a HID device, based on its string index.
+//
+// @ingroup API
+// @param device A device handle returned from hid_open().
+// @param string_index The index of the string to get.
+// @param string A wide string buffer to put the data into.
+// @param maxlen The length of the buffer in multiples of wchar_t.
+//
+// @returns
+// This function returns 0 on success and -1 on error.
+// */
+// int HID_API_EXPORT_CALL hid_get_indexed_string(hid_device *device, int string_index, wchar_t *string, size_t maxlen);
+
+// Get a string by index. String length will be max 256 wchars.
+func (dev *Device) GetIndexedString(index int) (string, error) {
+ // create WcharString
+ ws := wchar.NewWcharString(256)
+
+ // retrieve manufacturer string from hid
+ res := C.hid_get_indexed_string(dev.hidHandle, C.int(index), (*C.wchar_t)(unsafe.Pointer(ws.Pointer())), 256)
+ if res != 0 {
+ return "", dev.lastError()
+ }
+
+ // all done
+ return ws.GoString()
+}
+
+// /** @brief Get a string describing the last error which occurred.
+//
+// @ingroup API
+// @param device A device handle returned from hid_open().
+//
+// @returns
+// This function returns a string containing the last error
+// which occurred or NULL if none has occurred.
+// */
+// HID_API_EXPORT const wchar_t* HID_API_CALL hid_error(hid_device *device);
+
+func (dev *Device) lastError() error {
+ return errors.New(dev.lastErrorString())
+}
+
+func (dev *Device) lastErrorString() string {
+ wcharPtr := C.hid_error(dev.hidHandle)
+ str, err := wchar.WcharStringPtrToGoString(unsafe.Pointer(wcharPtr))
+ if err != nil {
+ return fmt.Sprintf("Error retrieving error string: %s", err)
+ }
+ return str
+}
diff --git a/vendor/github.com/GeertJohan/go.hid/hid_darwin.c b/vendor/github.com/GeertJohan/go.hid/hid_darwin.c
new file mode 100644
index 0000000..38bb635
--- /dev/null
+++ b/vendor/github.com/GeertJohan/go.hid/hid_darwin.c
@@ -0,0 +1,1112 @@
+/*******************************************************
+ HIDAPI - Multi-Platform library for
+ communication with HID devices.
+
+ Alan Ott
+ Signal 11 Software
+
+ 2010-07-03
+
+ Copyright 2010, All Rights Reserved.
+
+ At the discretion of the user of this library,
+ this software may be licensed under the terms of the
+ GNU General Public License v3, a BSD-Style license, or the
+ original HIDAPI license as outlined in the LICENSE.txt,
+ LICENSE-gpl3.txt, LICENSE-bsd.txt, and LICENSE-orig.txt
+ files located at the root of the source distribution.
+ These files may also be found in the public source
+ code repository located at:
+ http://github.com/signal11/hidapi .
+********************************************************/
+
+/* See Apple Technical Note TN2187 for details on IOHidManager. */
+
+#include <IOKit/hid/IOHIDManager.h>
+#include <IOKit/hid/IOHIDKeys.h>
+#include <CoreFoundation/CoreFoundation.h>
+#include <wchar.h>
+#include <locale.h>
+#include <pthread.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+#include "hidapi.h"
+
+/* Barrier implementation because Mac OSX doesn't have pthread_barrier.
+ It also doesn't have clock_gettime(). So much for POSIX and SUSv2.
+ This implementation came from Brent Priddy and was posted on
+ StackOverflow. It is used with his permission. */
+typedef int pthread_barrierattr_t;
+typedef struct pthread_barrier {
+ pthread_mutex_t mutex;
+ pthread_cond_t cond;
+ int count;
+ int trip_count;
+} pthread_barrier_t;
+
+static int pthread_barrier_init(pthread_barrier_t *barrier, const pthread_barrierattr_t *attr, unsigned int count)
+{
+ if(count == 0) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if(pthread_mutex_init(&barrier->mutex, 0) < 0) {
+ return -1;
+ }
+ if(pthread_cond_init(&barrier->cond, 0) < 0) {
+ pthread_mutex_destroy(&barrier->mutex);
+ return -1;
+ }
+ barrier->trip_count = count;
+ barrier->count = 0;
+
+ return 0;
+}
+
+static int pthread_barrier_destroy(pthread_barrier_t *barrier)
+{
+ pthread_cond_destroy(&barrier->cond);
+ pthread_mutex_destroy(&barrier->mutex);
+ return 0;
+}
+
+static int pthread_barrier_wait(pthread_barrier_t *barrier)
+{
+ pthread_mutex_lock(&barrier->mutex);
+ ++(barrier->count);
+ if(barrier->count >= barrier->trip_count)
+ {
+ barrier->count = 0;
+ pthread_cond_broadcast(&barrier->cond);
+ pthread_mutex_unlock(&barrier->mutex);
+ return 1;
+ }
+ else
+ {
+ pthread_cond_wait(&barrier->cond, &(barrier->mutex));
+ pthread_mutex_unlock(&barrier->mutex);
+ return 0;
+ }
+}
+
+static int return_data(hid_device *dev, unsigned char *data, size_t length);
+
+/* Linked List of input reports received from the device. */
+struct input_report {
+ uint8_t *data;
+ size_t len;
+ struct input_report *next;
+};
+
+struct hid_device_ {
+ IOHIDDeviceRef device_handle;
+ int blocking;
+ int uses_numbered_reports;
+ int disconnected;
+ CFStringRef run_loop_mode;
+ CFRunLoopRef run_loop;
+ CFRunLoopSourceRef source;
+ uint8_t *input_report_buf;
+ CFIndex max_input_report_len;
+ struct input_report *input_reports;
+
+ pthread_t thread;
+ pthread_mutex_t mutex; /* Protects input_reports */
+ pthread_cond_t condition;
+ pthread_barrier_t barrier; /* Ensures correct startup sequence */
+ pthread_barrier_t shutdown_barrier; /* Ensures correct shutdown sequence */
+ int shutdown_thread;
+};
+
+static hid_device *new_hid_device(void)
+{
+ hid_device *dev = calloc(1, sizeof(hid_device));
+ dev->device_handle = NULL;
+ dev->blocking = 1;
+ dev->uses_numbered_reports = 0;
+ dev->disconnected = 0;
+ dev->run_loop_mode = NULL;
+ dev->run_loop = NULL;
+ dev->source = NULL;
+ dev->input_report_buf = NULL;
+ dev->input_reports = NULL;
+ dev->shutdown_thread = 0;
+
+ /* Thread objects */
+ pthread_mutex_init(&dev->mutex, NULL);
+ pthread_cond_init(&dev->condition, NULL);
+ pthread_barrier_init(&dev->barrier, NULL, 2);
+ pthread_barrier_init(&dev->shutdown_barrier, NULL, 2);
+
+ return dev;
+}
+
+static void free_hid_device(hid_device *dev)
+{
+ if (!dev)
+ return;
+
+ /* Delete any input reports still left over. */
+ struct input_report *rpt = dev->input_reports;
+ while (rpt) {
+ struct input_report *next = rpt->next;
+ free(rpt->data);
+ free(rpt);
+ rpt = next;
+ }
+
+ /* Free the string and the report buffer. The check for NULL
+ is necessary here as CFRelease() doesn't handle NULL like
+ free() and others do. */
+ if (dev->run_loop_mode)
+ CFRelease(dev->run_loop_mode);
+ if (dev->source)
+ CFRelease(dev->source);
+ free(dev->input_report_buf);
+
+ /* Clean up the thread objects */
+ pthread_barrier_destroy(&dev->shutdown_barrier);
+ pthread_barrier_destroy(&dev->barrier);
+ pthread_cond_destroy(&dev->condition);
+ pthread_mutex_destroy(&dev->mutex);
+
+ /* Free the structure itself. */
+ free(dev);
+}
+
+static IOHIDManagerRef hid_mgr = 0x0;
+
+
+#if 0
+static void register_error(hid_device *device, const char *op)
+{
+
+}
+#endif
+
+
+static int32_t get_int_property(IOHIDDeviceRef device, CFStringRef key)
+{
+ CFTypeRef ref;
+ int32_t value;
+
+ ref = IOHIDDeviceGetProperty(device, key);
+ if (ref) {
+ if (CFGetTypeID(ref) == CFNumberGetTypeID()) {
+ CFNumberGetValue((CFNumberRef) ref, kCFNumberSInt32Type, &value);
+ return value;
+ }
+ }
+ return 0;
+}
+
+static unsigned short get_vendor_id(IOHIDDeviceRef device)
+{
+ return get_int_property(device, CFSTR(kIOHIDVendorIDKey));
+}
+
+static unsigned short get_product_id(IOHIDDeviceRef device)
+{
+ return get_int_property(device, CFSTR(kIOHIDProductIDKey));
+}
+
+static int32_t get_location_id(IOHIDDeviceRef device)
+{
+ return get_int_property(device, CFSTR(kIOHIDLocationIDKey));
+}
+
+static int32_t get_max_report_length(IOHIDDeviceRef device)
+{
+ return get_int_property(device, CFSTR(kIOHIDMaxInputReportSizeKey));
+}
+
+static int get_string_property(IOHIDDeviceRef device, CFStringRef prop, wchar_t *buf, size_t len)
+{
+ CFStringRef str;
+
+ if (!len)
+ return 0;
+
+ str = IOHIDDeviceGetProperty(device, prop);
+
+ buf[0] = 0;
+
+ if (str) {
+ CFIndex str_len = CFStringGetLength(str);
+ CFRange range;
+ CFIndex used_buf_len;
+ CFIndex chars_copied;
+
+ len --;
+
+ range.location = 0;
+ range.length = ((size_t)str_len > len)? len: (size_t)str_len;
+ chars_copied = CFStringGetBytes(str,
+ range,
+ kCFStringEncodingUTF32LE,
+ (char)'?',
+ FALSE,
+ (UInt8*)buf,
+ len * sizeof(wchar_t),
+ &used_buf_len);
+
+ if (chars_copied == len)
+ buf[len] = 0; /* len is decremented above */
+ else
+ buf[chars_copied] = 0;
+
+ return 0;
+ }
+ else
+ return -1;
+
+}
+
+static int get_string_property_utf8(IOHIDDeviceRef device, CFStringRef prop, char *buf, size_t len)
+{
+ CFStringRef str;
+ if (!len)
+ return 0;
+
+ str = IOHIDDeviceGetProperty(device, prop);
+
+ buf[0] = 0;
+
+ if (str) {
+ len--;
+
+ CFIndex str_len = CFStringGetLength(str);
+ CFRange range;
+ range.location = 0;
+ range.length = str_len;
+ CFIndex used_buf_len;
+ CFIndex chars_copied;
+ chars_copied = CFStringGetBytes(str,
+ range,
+ kCFStringEncodingUTF8,
+ (char)'?',
+ FALSE,
+ (UInt8*)buf,
+ len,
+ &used_buf_len);
+
+ if (used_buf_len == len)
+ buf[len] = 0; /* len is decremented above */
+ else
+ buf[used_buf_len] = 0;
+
+ return used_buf_len;
+ }
+ else
+ return 0;
+}
+
+
+static int get_serial_number(IOHIDDeviceRef device, wchar_t *buf, size_t len)
+{
+ return get_string_property(device, CFSTR(kIOHIDSerialNumberKey), buf, len);
+}
+
+static int get_manufacturer_string(IOHIDDeviceRef device, wchar_t *buf, size_t len)
+{
+ return get_string_property(device, CFSTR(kIOHIDManufacturerKey), buf, len);
+}
+
+static int get_product_string(IOHIDDeviceRef device, wchar_t *buf, size_t len)
+{
+ return get_string_property(device, CFSTR(kIOHIDProductKey), buf, len);
+}
+
+
+/* Implementation of wcsdup() for Mac. */
+static wchar_t *dup_wcs(const wchar_t *s)
+{
+ size_t len = wcslen(s);
+ wchar_t *ret = malloc((len+1)*sizeof(wchar_t));
+ wcscpy(ret, s);
+
+ return ret;
+}
+
+
+static int make_path(IOHIDDeviceRef device, char *buf, size_t len)
+{
+ int res;
+ unsigned short vid, pid;
+ char transport[32];
+ int32_t location;
+
+ buf[0] = '\0';
+
+ res = get_string_property_utf8(
+ device, CFSTR(kIOHIDTransportKey),
+ transport, sizeof(transport));
+
+ if (!res)
+ return -1;
+
+ location = get_location_id(device);
+ vid = get_vendor_id(device);
+ pid = get_product_id(device);
+
+ res = snprintf(buf, len, "%s_%04hx_%04hx_%x",
+ transport, vid, pid, location);
+
+
+ buf[len-1] = '\0';
+ return res+1;
+}
+
+/* Initialize the IOHIDManager. Return 0 for success and -1 for failure. */
+static int init_hid_manager(void)
+{
+ /* Initialize all the HID Manager Objects */
+ hid_mgr = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
+ if (hid_mgr) {
+ IOHIDManagerSetDeviceMatching(hid_mgr, NULL);
+ IOHIDManagerScheduleWithRunLoop(hid_mgr, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
+ return 0;
+ }
+
+ return -1;
+}
+
+/* Initialize the IOHIDManager if necessary. This is the public function, and
+ it is safe to call this function repeatedly. Return 0 for success and -1
+ for failure. */
+int HID_API_EXPORT hid_init(void)
+{
+ if (!hid_mgr) {
+ return init_hid_manager();
+ }
+
+ /* Already initialized. */
+ return 0;
+}
+
+int HID_API_EXPORT hid_exit(void)
+{
+ if (hid_mgr) {
+ /* Close the HID manager. */
+ IOHIDManagerClose(hid_mgr, kIOHIDOptionsTypeNone);
+ CFRelease(hid_mgr);
+ hid_mgr = NULL;
+ }
+
+ return 0;
+}
+
+static void process_pending_events(void) {
+ SInt32 res;
+ do {
+ res = CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.001, FALSE);
+ } while(res != kCFRunLoopRunFinished && res != kCFRunLoopRunTimedOut);
+}
+
+struct hid_device_info HID_API_EXPORT *hid_enumerate(unsigned short vendor_id, unsigned short product_id)
+{
+ struct hid_device_info *root = NULL; /* return object */
+ struct hid_device_info *cur_dev = NULL;
+ CFIndex num_devices;
+ int i;
+
+ /* Set up the HID Manager if it hasn't been done */
+ if (hid_init() < 0)
+ return NULL;
+
+ /* give the IOHIDManager a chance to update itself */
+ process_pending_events();
+
+ /* Get a list of the Devices */
+ IOHIDManagerSetDeviceMatching(hid_mgr, NULL);
+ CFSetRef device_set = IOHIDManagerCopyDevices(hid_mgr);
+
+ /* Convert the list into a C array so we can iterate easily. */
+ num_devices = CFSetGetCount(device_set);
+ IOHIDDeviceRef *device_array = calloc(num_devices, sizeof(IOHIDDeviceRef));
+ CFSetGetValues(device_set, (const void **) device_array);
+
+ /* Iterate over each device, making an entry for it. */
+ for (i = 0; i < num_devices; i++) {
+ unsigned short dev_vid;
+ unsigned short dev_pid;
+ #define BUF_LEN 256
+ wchar_t buf[BUF_LEN];
+ char cbuf[BUF_LEN];
+
+ IOHIDDeviceRef dev = device_array[i];
+
+ if (!dev) {
+ continue;
+ }
+ dev_vid = get_vendor_id(dev);
+ dev_pid = get_product_id(dev);
+
+ /* Check the VID/PID against the arguments */
+ if ((vendor_id == 0x0 || vendor_id == dev_vid) &&
+ (product_id == 0x0 || product_id == dev_pid)) {
+ struct hid_device_info *tmp;
+ size_t len;
+
+ /* VID/PID match. Create the record. */
+ tmp = malloc(sizeof(struct hid_device_info));
+ if (cur_dev) {
+ cur_dev->next = tmp;
+ }
+ else {
+ root = tmp;
+ }
+ cur_dev = tmp;
+
+ /* Get the Usage Page and Usage for this device. */
+ cur_dev->usage_page = get_int_property(dev, CFSTR(kIOHIDPrimaryUsagePageKey));
+ cur_dev->usage = get_int_property(dev, CFSTR(kIOHIDPrimaryUsageKey));
+
+ /* Fill out the record */
+ cur_dev->next = NULL;
+ len = make_path(dev, cbuf, sizeof(cbuf));
+ cur_dev->path = strdup(cbuf);
+
+ /* Serial Number */
+ get_serial_number(dev, buf, BUF_LEN);
+ cur_dev->serial_number = dup_wcs(buf);
+
+ /* Manufacturer and Product strings */
+ get_manufacturer_string(dev, buf, BUF_LEN);
+ cur_dev->manufacturer_string = dup_wcs(buf);
+ get_product_string(dev, buf, BUF_LEN);
+ cur_dev->product_string = dup_wcs(buf);
+
+ /* VID/PID */
+ cur_dev->vendor_id = dev_vid;
+ cur_dev->product_id = dev_pid;
+
+ /* Release Number */
+ cur_dev->release_number = get_int_property(dev, CFSTR(kIOHIDVersionNumberKey));
+
+ /* Interface Number (Unsupported on Mac)*/
+ cur_dev->interface_number = -1;
+ }
+ }
+
+ free(device_array);
+ CFRelease(device_set);
+
+ return root;
+}
+
+void HID_API_EXPORT hid_free_enumeration(struct hid_device_info *devs)
+{
+ /* This function is identical to the Linux version. Platform independent. */
+ struct hid_device_info *d = devs;
+ while (d) {
+ struct hid_device_info *next = d->next;
+ free(d->path);
+ free(d->serial_number);
+ free(d->manufacturer_string);
+ free(d->product_string);
+ free(d);
+ d = next;
+ }
+}
+
+hid_device * HID_API_EXPORT hid_open(unsigned short vendor_id, unsigned short product_id, const wchar_t *serial_number)
+{
+ /* This function is identical to the Linux version. Platform independent. */
+ struct hid_device_info *devs, *cur_dev;
+ const char *path_to_open = NULL;
+ hid_device * handle = NULL;
+
+ devs = hid_enumerate(vendor_id, product_id);
+ cur_dev = devs;
+ while (cur_dev) {
+ if (cur_dev->vendor_id == vendor_id &&
+ cur_dev->product_id == product_id) {
+ if (serial_number) {
+ if (wcscmp(serial_number, cur_dev->serial_number) == 0) {
+ path_to_open = cur_dev->path;
+ break;
+ }
+ }
+ else {
+ path_to_open = cur_dev->path;
+ break;
+ }
+ }
+ cur_dev = cur_dev->next;
+ }
+
+ if (path_to_open) {
+ /* Open the device */
+ handle = hid_open_path(path_to_open);
+ }
+
+ hid_free_enumeration(devs);
+
+ return handle;
+}
+
+static void hid_device_removal_callback(void *context, IOReturn result,
+ void *sender)
+{
+ /* Stop the Run Loop for this device. */
+ hid_device *d = context;
+
+ d->disconnected = 1;
+ CFRunLoopStop(d->run_loop);
+}
+
+/* The Run Loop calls this function for each input report received.
+ This function puts the data into a linked list to be picked up by
+ hid_read(). */
+static void hid_report_callback(void *context, IOReturn result, void *sender,
+ IOHIDReportType report_type, uint32_t report_id,
+ uint8_t *report, CFIndex report_length)
+{
+ struct input_report *rpt;
+ hid_device *dev = context;
+
+ /* Make a new Input Report object */
+ rpt = calloc(1, sizeof(struct input_report));
+ rpt->data = calloc(1, report_length);
+ memcpy(rpt->data, report, report_length);
+ rpt->len = report_length;
+ rpt->next = NULL;
+
+ /* Lock this section */
+ pthread_mutex_lock(&dev->mutex);
+
+ /* Attach the new report object to the end of the list. */
+ if (dev->input_reports == NULL) {
+ /* The list is empty. Put it at the root. */
+ dev->input_reports = rpt;
+ }
+ else {
+ /* Find the end of the list and attach. */
+ struct input_report *cur = dev->input_reports;
+ int num_queued = 0;
+ while (cur->next != NULL) {
+ cur = cur->next;
+ num_queued++;
+ }
+ cur->next = rpt;
+
+ /* Pop one off if we've reached 30 in the queue. This
+ way we don't grow forever if the user never reads
+ anything from the device. */
+ if (num_queued > 30) {
+ return_data(dev, NULL, 0);
+ }
+ }
+
+ /* Signal a waiting thread that there is data. */
+ pthread_cond_signal(&dev->condition);
+
+ /* Unlock */
+ pthread_mutex_unlock(&dev->mutex);
+
+}
+
+/* This gets called when the read_thred's run loop gets signaled by
+ hid_close(), and serves to stop the read_thread's run loop. */
+static void perform_signal_callback(void *context)
+{
+ hid_device *dev = context;
+ CFRunLoopStop(dev->run_loop); /*TODO: CFRunLoopGetCurrent()*/
+}
+
+static void *read_thread(void *param)
+{
+ hid_device *dev = param;
+ SInt32 code;
+
+ /* Move the device's run loop to this thread. */
+ IOHIDDeviceScheduleWithRunLoop(dev->device_handle, CFRunLoopGetCurrent(), dev->run_loop_mode);
+
+ /* Create the RunLoopSource which is used to signal the
+ event loop to stop when hid_close() is called. */
+ CFRunLoopSourceContext ctx;
+ memset(&ctx, 0, sizeof(ctx));
+ ctx.version = 0;
+ ctx.info = dev;
+ ctx.perform = &perform_signal_callback;
+ dev->source = CFRunLoopSourceCreate(kCFAllocatorDefault, 0/*order*/, &ctx);
+ CFRunLoopAddSource(CFRunLoopGetCurrent(), dev->source, dev->run_loop_mode);
+
+ /* Store off the Run Loop so it can be stopped from hid_close()
+ and on device disconnection. */
+ dev->run_loop = CFRunLoopGetCurrent();
+
+ /* Notify the main thread that the read thread is up and running. */
+ pthread_barrier_wait(&dev->barrier);
+
+ /* Run the Event Loop. CFRunLoopRunInMode() will dispatch HID input
+ reports into the hid_report_callback(). */
+ while (!dev->shutdown_thread && !dev->disconnected) {
+ code = CFRunLoopRunInMode(dev->run_loop_mode, 1000/*sec*/, FALSE);
+ /* Return if the device has been disconnected */
+ if (code == kCFRunLoopRunFinished) {
+ dev->disconnected = 1;
+ break;
+ }
+
+
+ /* Break if The Run Loop returns Finished or Stopped. */
+ if (code != kCFRunLoopRunTimedOut &&
+ code != kCFRunLoopRunHandledSource) {
+ /* There was some kind of error. Setting
+ shutdown seems to make sense, but
+ there may be something else more appropriate */
+ dev->shutdown_thread = 1;
+ break;
+ }
+ }
+
+ /* Now that the read thread is stopping, Wake any threads which are
+ waiting on data (in hid_read_timeout()). Do this under a mutex to
+ make sure that a thread which is about to go to sleep waiting on
+ the condition acutally will go to sleep before the condition is
+ signaled. */
+ pthread_mutex_lock(&dev->mutex);
+ pthread_cond_broadcast(&dev->condition);
+ pthread_mutex_unlock(&dev->mutex);
+
+ /* Wait here until hid_close() is called and makes it past
+ the call to CFRunLoopWakeUp(). This thread still needs to
+ be valid when that function is called on the other thread. */
+ pthread_barrier_wait(&dev->shutdown_barrier);
+
+ return NULL;
+}
+
+hid_device * HID_API_EXPORT hid_open_path(const char *path)
+{
+ int i;
+ hid_device *dev = NULL;
+ CFIndex num_devices;
+
+ dev = new_hid_device();
+
+ /* Set up the HID Manager if it hasn't been done */
+ if (hid_init() < 0)
+ return NULL;
+
+ /* give the IOHIDManager a chance to update itself */
+ process_pending_events();
+
+ CFSetRef device_set = IOHIDManagerCopyDevices(hid_mgr);
+
+ num_devices = CFSetGetCount(device_set);
+ IOHIDDeviceRef *device_array = calloc(num_devices, sizeof(IOHIDDeviceRef));
+ CFSetGetValues(device_set, (const void **) device_array);
+ for (i = 0; i < num_devices; i++) {
+ char cbuf[BUF_LEN];
+ size_t len;
+ IOHIDDeviceRef os_dev = device_array[i];
+
+ len = make_path(os_dev, cbuf, sizeof(cbuf));
+ if (!strcmp(cbuf, path)) {
+ /* Matched Paths. Open this Device. */
+ IOReturn ret = IOHIDDeviceOpen(os_dev, kIOHIDOptionsTypeSeizeDevice);
+ if (ret == kIOReturnSuccess) {
+ char str[32];
+
+ free(device_array);
+ CFRetain(os_dev);
+ CFRelease(device_set);
+ dev->device_handle = os_dev;
+
+ /* Create the buffers for receiving data */
+ dev->max_input_report_len = (CFIndex) get_max_report_length(os_dev);
+ dev->input_report_buf = calloc(dev->max_input_report_len, sizeof(uint8_t));
+
+ /* Create the Run Loop Mode for this device.
+ printing the reference seems to work. */
+ sprintf(str, "HIDAPI_%p", os_dev);
+ dev->run_loop_mode =
+ CFStringCreateWithCString(NULL, str, kCFStringEncodingASCII);
+
+ /* Attach the device to a Run Loop */
+ IOHIDDeviceRegisterInputReportCallback(
+ os_dev, dev->input_report_buf, dev->max_input_report_len,
+ &hid_report_callback, dev);
+ IOHIDDeviceRegisterRemovalCallback(dev->device_handle, hid_device_removal_callback, dev);
+
+ /* Start the read thread */
+ pthread_create(&dev->thread, NULL, read_thread, dev);
+
+ /* Wait here for the read thread to be initialized. */
+ pthread_barrier_wait(&dev->barrier);
+
+ return dev;
+ }
+ else {
+ goto return_error;
+ }
+ }
+ }
+
+return_error:
+ free(device_array);
+ CFRelease(device_set);
+ free_hid_device(dev);
+ return NULL;
+}
+
+static int set_report(hid_device *dev, IOHIDReportType type, const unsigned char *data, size_t length)
+{
+ const unsigned char *data_to_send;
+ size_t length_to_send;
+ IOReturn res;
+
+ /* Return if the device has been disconnected. */
+ if (dev->disconnected)
+ return -1;
+
+ if (data[0] == 0x0) {
+ /* Not using numbered Reports.
+ Don't send the report number. */
+ data_to_send = data+1;
+ length_to_send = length-1;
+ }
+ else {
+ /* Using numbered Reports.
+ Send the Report Number */
+ data_to_send = data;
+ length_to_send = length;
+ }
+
+ if (!dev->disconnected) {
+ res = IOHIDDeviceSetReport(dev->device_handle,
+ type,
+ data[0], /* Report ID*/
+ data_to_send, length_to_send);
+
+ if (res == kIOReturnSuccess) {
+ return length;
+ }
+ else
+ return -1;
+ }
+
+ return -1;
+}
+
+int HID_API_EXPORT hid_write(hid_device *dev, const unsigned char *data, size_t length)
+{
+ return set_report(dev, kIOHIDReportTypeOutput, data, length);
+}
+
+/* Helper function, so that this isn't duplicated in hid_read(). */
+static int return_data(hid_device *dev, unsigned char *data, size_t length)
+{
+ /* Copy the data out of the linked list item (rpt) into the
+ return buffer (data), and delete the liked list item. */
+ struct input_report *rpt = dev->input_reports;
+ size_t len = (length < rpt->len)? length: rpt->len;
+ memcpy(data, rpt->data, len);
+ dev->input_reports = rpt->next;
+ free(rpt->data);
+ free(rpt);
+ return len;
+}
+
+static int cond_wait(const hid_device *dev, pthread_cond_t *cond, pthread_mutex_t *mutex)
+{
+ while (!dev->input_reports) {
+ int res = pthread_cond_wait(cond, mutex);
+ if (res != 0)
+ return res;
+
+ /* A res of 0 means we may have been signaled or it may
+ be a spurious wakeup. Check to see that there's acutally
+ data in the queue before returning, and if not, go back
+ to sleep. See the pthread_cond_timedwait() man page for
+ details. */
+
+ if (dev->shutdown_thread || dev->disconnected)
+ return -1;
+ }
+
+ return 0;
+}
+
+static int cond_timedwait(const hid_device *dev, pthread_cond_t *cond, pthread_mutex_t *mutex, const struct timespec *abstime)
+{
+ while (!dev->input_reports) {
+ int res = pthread_cond_timedwait(cond, mutex, abstime);
+ if (res != 0)
+ return res;
+
+ /* A res of 0 means we may have been signaled or it may
+ be a spurious wakeup. Check to see that there's acutally
+ data in the queue before returning, and if not, go back
+ to sleep. See the pthread_cond_timedwait() man page for
+ details. */
+
+ if (dev->shutdown_thread || dev->disconnected)
+ return -1;
+ }
+
+ return 0;
+
+}
+
+int HID_API_EXPORT hid_read_timeout(hid_device *dev, unsigned char *data, size_t length, int milliseconds)
+{
+ int bytes_read = -1;
+
+ /* Lock the access to the report list. */
+ pthread_mutex_lock(&dev->mutex);
+
+ /* There's an input report queued up. Return it. */
+ if (dev->input_reports) {
+ /* Return the first one */
+ bytes_read = return_data(dev, data, length);
+ goto ret;
+ }
+
+ /* Return if the device has been disconnected. */
+ if (dev->disconnected) {
+ bytes_read = -1;
+ goto ret;
+ }
+
+ if (dev->shutdown_thread) {
+ /* This means the device has been closed (or there
+ has been an error. An error code of -1 should
+ be returned. */
+ bytes_read = -1;
+ goto ret;
+ }
+
+ /* There is no data. Go to sleep and wait for data. */
+
+ if (milliseconds == -1) {
+ /* Blocking */
+ int res;
+ res = cond_wait(dev, &dev->condition, &dev->mutex);
+ if (res == 0)
+ bytes_read = return_data(dev, data, length);
+ else {
+ /* There was an error, or a device disconnection. */
+ bytes_read = -1;
+ }
+ }
+ else if (milliseconds > 0) {
+ /* Non-blocking, but called with timeout. */
+ int res;
+ struct timespec ts;
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ TIMEVAL_TO_TIMESPEC(&tv, &ts);
+ ts.tv_sec += milliseconds / 1000;
+ ts.tv_nsec += (milliseconds % 1000) * 1000000;
+ if (ts.tv_nsec >= 1000000000L) {
+ ts.tv_sec++;
+ ts.tv_nsec -= 1000000000L;
+ }
+
+ res = cond_timedwait(dev, &dev->condition, &dev->mutex, &ts);
+ if (res == 0)
+ bytes_read = return_data(dev, data, length);
+ else if (res == ETIMEDOUT)
+ bytes_read = 0;
+ else
+ bytes_read = -1;
+ }
+ else {
+ /* Purely non-blocking */
+ bytes_read = 0;
+ }
+
+ret:
+ /* Unlock */
+ pthread_mutex_unlock(&dev->mutex);
+ return bytes_read;
+}
+
+int HID_API_EXPORT hid_read(hid_device *dev, unsigned char *data, size_t length)
+{
+ return hid_read_timeout(dev, data, length, (dev->blocking)? -1: 0);
+}
+
+int HID_API_EXPORT hid_set_nonblocking(hid_device *dev, int nonblock)
+{
+ /* All Nonblocking operation is handled by the library. */
+ dev->blocking = !nonblock;
+
+ return 0;
+}
+
+int HID_API_EXPORT hid_send_feature_report(hid_device *dev, const unsigned char *data, size_t length)
+{
+ return set_report(dev, kIOHIDReportTypeFeature, data, length);
+}
+
+int HID_API_EXPORT hid_get_feature_report(hid_device *dev, unsigned char *data, size_t length)
+{
+ CFIndex len = length;
+ IOReturn res;
+
+ /* Return if the device has been unplugged. */
+ if (dev->disconnected)
+ return -1;
+
+ res = IOHIDDeviceGetReport(dev->device_handle,
+ kIOHIDReportTypeFeature,
+ data[0], /* Report ID */
+ data, &len);
+ if (res == kIOReturnSuccess)
+ return len;
+ else
+ return -1;
+}
+
+
+void HID_API_EXPORT hid_close(hid_device *dev)
+{
+ if (!dev)
+ return;
+
+ /* Disconnect the report callback before close. */
+ if (!dev->disconnected) {
+ IOHIDDeviceRegisterInputReportCallback(
+ dev->device_handle, dev->input_report_buf, dev->max_input_report_len,
+ NULL, dev);
+ IOHIDDeviceRegisterRemovalCallback(dev->device_handle, NULL, dev);
+ IOHIDDeviceUnscheduleFromRunLoop(dev->device_handle, dev->run_loop, dev->run_loop_mode);
+ IOHIDDeviceScheduleWithRunLoop(dev->device_handle, CFRunLoopGetMain(), kCFRunLoopDefaultMode);
+ }
+
+ /* Cause read_thread() to stop. */
+ dev->shutdown_thread = 1;
+
+ /* Wake up the run thread's event loop so that the thread can exit. */
+ CFRunLoopSourceSignal(dev->source);
+ CFRunLoopWakeUp(dev->run_loop);
+
+ /* Notify the read thread that it can shut down now. */
+ pthread_barrier_wait(&dev->shutdown_barrier);
+
+ /* Wait for read_thread() to end. */
+ pthread_join(dev->thread, NULL);
+
+ /* Close the OS handle to the device, but only if it's not
+ been unplugged. If it's been unplugged, then calling
+ IOHIDDeviceClose() will crash. */
+ if (!dev->disconnected) {
+ IOHIDDeviceClose(dev->device_handle, kIOHIDOptionsTypeSeizeDevice);
+ }
+
+ /* Clear out the queue of received reports. */
+ pthread_mutex_lock(&dev->mutex);
+ while (dev->input_reports) {
+ return_data(dev, NULL, 0);
+ }
+ pthread_mutex_unlock(&dev->mutex);
+ CFRelease(dev->device_handle);
+
+ free_hid_device(dev);
+}
+
+int HID_API_EXPORT_CALL hid_get_manufacturer_string(hid_device *dev, wchar_t *string, size_t maxlen)
+{
+ return get_manufacturer_string(dev->device_handle, string, maxlen);
+}
+
+int HID_API_EXPORT_CALL hid_get_product_string(hid_device *dev, wchar_t *string, size_t maxlen)
+{
+ return get_product_string(dev->device_handle, string, maxlen);
+}
+
+int HID_API_EXPORT_CALL hid_get_serial_number_string(hid_device *dev, wchar_t *string, size_t maxlen)
+{
+ return get_serial_number(dev->device_handle, string, maxlen);
+}
+
+int HID_API_EXPORT_CALL hid_get_indexed_string(hid_device *dev, int string_index, wchar_t *string, size_t maxlen)
+{
+ /* TODO: */
+
+ return 0;
+}
+
+
+HID_API_EXPORT const wchar_t * HID_API_CALL hid_error(hid_device *dev)
+{
+ /* TODO: */
+
+ return NULL;
+}
+
+
+
+
+
+
+
+#if 0
+static int32_t get_usage(IOHIDDeviceRef device)
+{
+ int32_t res;
+ res = get_int_property(device, CFSTR(kIOHIDDeviceUsageKey));
+ if (!res)
+ res = get_int_property(device, CFSTR(kIOHIDPrimaryUsageKey));
+ return res;
+}
+
+static int32_t get_usage_page(IOHIDDeviceRef device)
+{
+ int32_t res;
+ res = get_int_property(device, CFSTR(kIOHIDDeviceUsagePageKey));
+ if (!res)
+ res = get_int_property(device, CFSTR(kIOHIDPrimaryUsagePageKey));
+ return res;
+}
+
+static int get_transport(IOHIDDeviceRef device, wchar_t *buf, size_t len)
+{
+ return get_string_property(device, CFSTR(kIOHIDTransportKey), buf, len);
+}
+
+
+int main(void)
+{
+ IOHIDManagerRef mgr;
+ int i;
+
+ mgr = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
+ IOHIDManagerSetDeviceMatching(mgr, NULL);
+ IOHIDManagerOpen(mgr, kIOHIDOptionsTypeNone);
+
+ CFSetRef device_set = IOHIDManagerCopyDevices(mgr);
+
+ CFIndex num_devices = CFSetGetCount(device_set);
+ IOHIDDeviceRef *device_array = calloc(num_devices, sizeof(IOHIDDeviceRef));
+ CFSetGetValues(device_set, (const void **) device_array);
+
+ for (i = 0; i < num_devices; i++) {
+ IOHIDDeviceRef dev = device_array[i];
+ printf("Device: %p\n", dev);
+ printf(" %04hx %04hx\n", get_vendor_id(dev), get_product_id(dev));
+
+ wchar_t serial[256], buf[256];
+ char cbuf[256];
+ get_serial_number(dev, serial, 256);
+
+
+ printf(" Serial: %ls\n", serial);
+ printf(" Loc: %ld\n", get_location_id(dev));
+ get_transport(dev, buf, 256);
+ printf(" Trans: %ls\n", buf);
+ make_path(dev, cbuf, 256);
+ printf(" Path: %s\n", cbuf);
+
+ }
+
+ return 0;
+}
+#endif
diff --git a/vendor/github.com/GeertJohan/go.hid/hid_linux.c b/vendor/github.com/GeertJohan/go.hid/hid_linux.c
new file mode 100644
index 0000000..6c1d247
--- /dev/null
+++ b/vendor/github.com/GeertJohan/go.hid/hid_linux.c
@@ -0,0 +1,1427 @@
+/*******************************************************
+ HIDAPI - Multi-Platform library for
+ communication with HID devices.
+
+ Alan Ott
+ Signal 11 Software
+
+ 8/22/2009
+ Linux Version - 6/2/2010
+ Libusb Version - 8/13/2010
+ FreeBSD Version - 11/1/2011
+
+ Copyright 2009, All Rights Reserved.
+
+ At the discretion of the user of this library,
+ this software may be licensed under the terms of the
+ GNU General Public License v3, a BSD-Style license, or the
+ original HIDAPI license as outlined in the LICENSE.txt,
+ LICENSE-gpl3.txt, LICENSE-bsd.txt, and LICENSE-orig.txt
+ files located at the root of the source distribution.
+ These files may also be found in the public source
+ code repository located at:
+ http://github.com/signal11/hidapi .
+********************************************************/
+
+#define _GNU_SOURCE /* needed for wcsdup() before glibc 2.10 */
+
+/* C */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <locale.h>
+#include <errno.h>
+
+/* Unix */
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <sys/utsname.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <wchar.h>
+
+/* GNU / LibUSB */
+#include "libusb.h"
+#include "iconv.h"
+
+#include "hidapi.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef DEBUG_PRINTF
+#define LOG(...) fprintf(stderr, __VA_ARGS__)
+#else
+#define LOG(...) do {} while (0)
+#endif
+
+#ifndef __FreeBSD__
+#define DETACH_KERNEL_DRIVER
+#endif
+
+/* Uncomment to enable the retrieval of Usage and Usage Page in
+hid_enumerate(). Warning, on platforms different from FreeBSD
+this is very invasive as it requires the detach
+and re-attach of the kernel driver. See comments inside hid_enumerate().
+libusb HIDAPI programs are encouraged to use the interface number
+instead to differentiate between interfaces on a composite HID device. */
+/*#define INVASIVE_GET_USAGE*/
+
+/* Linked List of input reports received from the device. */
+struct input_report {
+ uint8_t *data;
+ size_t len;
+ struct input_report *next;
+};
+
+
+struct hid_device_ {
+ /* Handle to the actual device. */
+ libusb_device_handle *device_handle;
+
+ /* Endpoint information */
+ int input_endpoint;
+ int output_endpoint;
+ int input_ep_max_packet_size;
+
+ /* The interface number of the HID */
+ int interface;
+
+ /* Indexes of Strings */
+ int manufacturer_index;
+ int product_index;
+ int serial_index;
+
+ /* Whether blocking reads are used */
+ int blocking; /* boolean */
+
+ /* Read thread objects */
+ pthread_t thread;
+ pthread_mutex_t mutex; /* Protects input_reports */
+ pthread_cond_t condition;
+ pthread_barrier_t barrier; /* Ensures correct startup sequence */
+ int shutdown_thread;
+ int cancelled;
+ struct libusb_transfer *transfer;
+
+ /* List of received input reports. */
+ struct input_report *input_reports;
+};
+
+static libusb_context *usb_context = NULL;
+
+uint16_t get_usb_code_for_current_locale(void);
+static int return_data(hid_device *dev, unsigned char *data, size_t length);
+
+static hid_device *new_hid_device(void)
+{
+ hid_device *dev = calloc(1, sizeof(hid_device));
+ dev->blocking = 1;
+
+ pthread_mutex_init(&dev->mutex, NULL);
+ pthread_cond_init(&dev->condition, NULL);
+ pthread_barrier_init(&dev->barrier, NULL, 2);
+
+ return dev;
+}
+
+static void free_hid_device(hid_device *dev)
+{
+ /* Clean up the thread objects */
+ pthread_barrier_destroy(&dev->barrier);
+ pthread_cond_destroy(&dev->condition);
+ pthread_mutex_destroy(&dev->mutex);
+
+ /* Free the device itself */
+ free(dev);
+}
+
+#if 0
+/*TODO: Implement this funciton on hidapi/libusb.. */
+static void register_error(hid_device *device, const char *op)
+{
+
+}
+#endif
+
+#ifdef INVASIVE_GET_USAGE
+/* Get bytes from a HID Report Descriptor.
+ Only call with a num_bytes of 0, 1, 2, or 4. */
+static uint32_t get_bytes(uint8_t *rpt, size_t len, size_t num_bytes, size_t cur)
+{
+ /* Return if there aren't enough bytes. */
+ if (cur + num_bytes >= len)
+ return 0;
+
+ if (num_bytes == 0)
+ return 0;
+ else if (num_bytes == 1) {
+ return rpt[cur+1];
+ }
+ else if (num_bytes == 2) {
+ return (rpt[cur+2] * 256 + rpt[cur+1]);
+ }
+ else if (num_bytes == 4) {
+ return (rpt[cur+4] * 0x01000000 +
+ rpt[cur+3] * 0x00010000 +
+ rpt[cur+2] * 0x00000100 +
+ rpt[cur+1] * 0x00000001);
+ }
+ else
+ return 0;
+}
+
+/* Retrieves the device's Usage Page and Usage from the report
+ descriptor. The algorithm is simple, as it just returns the first
+ Usage and Usage Page that it finds in the descriptor.
+ The return value is 0 on success and -1 on failure. */
+static int get_usage(uint8_t *report_descriptor, size_t size,
+ unsigned short *usage_page, unsigned short *usage)
+{
+ unsigned int i = 0;
+ int size_code;
+ int data_len, key_size;
+ int usage_found = 0, usage_page_found = 0;
+
+ while (i < size) {
+ int key = report_descriptor[i];
+ int key_cmd = key & 0xfc;
+
+ //printf("key: %02hhx\n", key);
+
+ if ((key & 0xf0) == 0xf0) {
+ /* This is a Long Item. The next byte contains the
+ length of the data section (value) for this key.
+ See the HID specification, version 1.11, section
+ 6.2.2.3, titled "Long Items." */
+ if (i+1 < size)
+ data_len = report_descriptor[i+1];
+ else
+ data_len = 0; /* malformed report */
+ key_size = 3;
+ }
+ else {
+ /* This is a Short Item. The bottom two bits of the
+ key contain the size code for the data section
+ (value) for this key. Refer to the HID
+ specification, version 1.11, section 6.2.2.2,
+ titled "Short Items." */
+ size_code = key & 0x3;
+ switch (size_code) {
+ case 0:
+ case 1:
+ case 2:
+ data_len = size_code;
+ break;
+ case 3:
+ data_len = 4;
+ break;
+ default:
+ /* Can't ever happen since size_code is & 0x3 */
+ data_len = 0;
+ break;
+ };
+ key_size = 1;
+ }
+
+ if (key_cmd == 0x4) {
+ *usage_page = get_bytes(report_descriptor, size, data_len, i);
+ usage_page_found = 1;
+ //printf("Usage Page: %x\n", (uint32_t)*usage_page);
+ }
+ if (key_cmd == 0x8) {
+ *usage = get_bytes(report_descriptor, size, data_len, i);
+ usage_found = 1;
+ //printf("Usage: %x\n", (uint32_t)*usage);
+ }
+
+ if (usage_page_found && usage_found)
+ return 0; /* success */
+
+ /* Skip over this key and it's associated data */
+ i += data_len + key_size;
+ }
+
+ return -1; /* failure */
+}
+#endif /* INVASIVE_GET_USAGE */
+
+#ifdef __FreeBSD__
+/* The FreeBSD version of libusb doesn't have this funciton. In mainline
+ libusb, it's inlined in libusb.h. This function will bear a striking
+ resemblence to that one, because there's about one way to code it.
+
+ Note that the data parameter is Unicode in UTF-16LE encoding.
+ Return value is the number of bytes in data, or LIBUSB_ERROR_*.
+ */
+static inline int libusb_get_string_descriptor(libusb_device_handle *dev,
+ uint8_t descriptor_index, uint16_t lang_id,
+ unsigned char *data, int length)
+{
+ return libusb_control_transfer(dev,
+ LIBUSB_ENDPOINT_IN | 0x0, /* Endpoint 0 IN */
+ LIBUSB_REQUEST_GET_DESCRIPTOR,
+ (LIBUSB_DT_STRING << 8) | descriptor_index,
+ lang_id, data, (uint16_t) length, 1000);
+}
+
+#endif
+
+
+/* Get the first language the device says it reports. This comes from
+ USB string #0. */
+static uint16_t get_first_language(libusb_device_handle *dev)
+{
+ uint16_t buf[32];
+ int len;
+
+ /* Get the string from libusb. */
+ len = libusb_get_string_descriptor(dev,
+ 0x0, /* String ID */
+ 0x0, /* Language */
+ (unsigned char*)buf,
+ sizeof(buf));
+ if (len < 4)
+ return 0x0;
+
+ return buf[1]; /* First two bytes are len and descriptor type. */
+}
+
+static int is_language_supported(libusb_device_handle *dev, uint16_t lang)
+{
+ uint16_t buf[32];
+ int len;
+ int i;
+
+ /* Get the string from libusb. */
+ len = libusb_get_string_descriptor(dev,
+ 0x0, /* String ID */
+ 0x0, /* Language */
+ (unsigned char*)buf,
+ sizeof(buf));
+ if (len < 4)
+ return 0x0;
+
+
+ len /= 2; /* language IDs are two-bytes each. */
+ /* Start at index 1 because there are two bytes of protocol data. */
+ for (i = 1; i < len; i++) {
+ if (buf[i] == lang)
+ return 1;
+ }
+
+ return 0;
+}
+
+
+/* This function returns a newly allocated wide string containing the USB
+ device string numbered by the index. The returned string must be freed
+ by using free(). */
+static wchar_t *get_usb_string(libusb_device_handle *dev, uint8_t idx)
+{
+ char buf[512];
+ int len;
+ wchar_t *str = NULL;
+ wchar_t wbuf[256];
+
+ /* iconv variables */
+ iconv_t ic;
+ size_t inbytes;
+ size_t outbytes;
+ size_t res;
+#ifdef __FreeBSD__
+ const char *inptr;
+#else
+ char *inptr;
+#endif
+ char *outptr;
+
+ /* Determine which language to use. */
+ uint16_t lang;
+ lang = get_usb_code_for_current_locale();
+ if (!is_language_supported(dev, lang))
+ lang = get_first_language(dev);
+
+ /* Get the string from libusb. */
+ len = libusb_get_string_descriptor(dev,
+ idx,
+ lang,
+ (unsigned char*)buf,
+ sizeof(buf));
+ if (len < 0)
+ return NULL;
+
+ /* buf does not need to be explicitly NULL-terminated because
+ it is only passed into iconv() which does not need it. */
+
+ /* Initialize iconv. */
+ ic = iconv_open("WCHAR_T", "UTF-16LE");
+ if (ic == (iconv_t)-1) {
+ LOG("iconv_open() failed\n");
+ return NULL;
+ }
+
+ /* Convert to native wchar_t (UTF-32 on glibc/BSD systems).
+ Skip the first character (2-bytes). */
+ inptr = buf+2;
+ inbytes = len-2;
+ outptr = (char*) wbuf;
+ outbytes = sizeof(wbuf);
+ res = iconv(ic, &inptr, &inbytes, &outptr, &outbytes);
+ if (res == (size_t)-1) {
+ LOG("iconv() failed\n");
+ goto err;
+ }
+
+ /* Write the terminating NULL. */
+ wbuf[sizeof(wbuf)/sizeof(wbuf[0])-1] = 0x00000000;
+ if (outbytes >= sizeof(wbuf[0]))
+ *((wchar_t*)outptr) = 0x00000000;
+
+ /* Allocate and copy the string. */
+ str = wcsdup(wbuf);
+
+err:
+ iconv_close(ic);
+
+ return str;
+}
+
+static char *make_path(libusb_device *dev, int interface_number)
+{
+ char str[64];
+ snprintf(str, sizeof(str), "%04x:%04x:%02x",
+ libusb_get_bus_number(dev),
+ libusb_get_device_address(dev),
+ interface_number);
+ str[sizeof(str)-1] = '\0';
+
+ return strdup(str);
+}
+
+
+int HID_API_EXPORT hid_init(void)
+{
+ if (!usb_context) {
+ const char *locale;
+
+ /* Init Libusb */
+ if (libusb_init(&usb_context))
+ return -1;
+
+ /* Set the locale if it's not set. */
+ locale = setlocale(LC_CTYPE, NULL);
+ if (!locale)
+ setlocale(LC_CTYPE, "");
+ }
+
+ return 0;
+}
+
+int HID_API_EXPORT hid_exit(void)
+{
+ if (usb_context) {
+ libusb_exit(usb_context);
+ usb_context = NULL;
+ }
+
+ return 0;
+}
+
+struct hid_device_info HID_API_EXPORT *hid_enumerate(unsigned short vendor_id, unsigned short product_id)
+{
+ libusb_device **devs;
+ libusb_device *dev;
+ libusb_device_handle *handle;
+ ssize_t num_devs;
+ int i = 0;
+
+ struct hid_device_info *root = NULL; /* return object */
+ struct hid_device_info *cur_dev = NULL;
+
+ if(hid_init() < 0)
+ return NULL;
+
+ num_devs = libusb_get_device_list(usb_context, &devs);
+ if (num_devs < 0)
+ return NULL;
+ while ((dev = devs[i++]) != NULL) {
+ struct libusb_device_descriptor desc;
+ struct libusb_config_descriptor *conf_desc = NULL;
+ int j, k;
+ int interface_num = 0;
+
+ int res = libusb_get_device_descriptor(dev, &desc);
+ unsigned short dev_vid = desc.idVendor;
+ unsigned short dev_pid = desc.idProduct;
+
+ res = libusb_get_active_config_descriptor(dev, &conf_desc);
+ if (res < 0)
+ libusb_get_config_descriptor(dev, 0, &conf_desc);
+ if (conf_desc) {
+ for (j = 0; j < conf_desc->bNumInterfaces; j++) {
+ const struct libusb_interface *intf = &conf_desc->interface[j];
+ for (k = 0; k < intf->num_altsetting; k++) {
+ const struct libusb_interface_descriptor *intf_desc;
+ intf_desc = &intf->altsetting[k];
+ if (intf_desc->bInterfaceClass == LIBUSB_CLASS_HID) {
+ interface_num = intf_desc->bInterfaceNumber;
+
+ /* Check the VID/PID against the arguments */
+ if ((vendor_id == 0x0 || vendor_id == dev_vid) &&
+ (product_id == 0x0 || product_id == dev_pid)) {
+ struct hid_device_info *tmp;
+
+ /* VID/PID match. Create the record. */
+ tmp = calloc(1, sizeof(struct hid_device_info));
+ if (cur_dev) {
+ cur_dev->next = tmp;
+ }
+ else {
+ root = tmp;
+ }
+ cur_dev = tmp;
+
+ /* Fill out the record */
+ cur_dev->next = NULL;
+ cur_dev->path = make_path(dev, interface_num);
+
+ res = libusb_open(dev, &handle);
+
+ if (res >= 0) {
+ /* Serial Number */
+ if (desc.iSerialNumber > 0)
+ cur_dev->serial_number =
+ get_usb_string(handle, desc.iSerialNumber);
+
+ /* Manufacturer and Product strings */
+ if (desc.iManufacturer > 0)
+ cur_dev->manufacturer_string =
+ get_usb_string(handle, desc.iManufacturer);
+ if (desc.iProduct > 0)
+ cur_dev->product_string =
+ get_usb_string(handle, desc.iProduct);
+
+#ifdef INVASIVE_GET_USAGE
+{
+ /*
+ This section is removed because it is too
+ invasive on the system. Getting a Usage Page
+ and Usage requires parsing the HID Report
+ descriptor. Getting a HID Report descriptor
+ involves claiming the interface. Claiming the
+ interface involves detaching the kernel driver.
+ Detaching the kernel driver is hard on the system
+ because it will unclaim interfaces (if another
+ app has them claimed) and the re-attachment of
+ the driver will sometimes change /dev entry names.
+ It is for these reasons that this section is
+ #if 0. For composite devices, use the interface
+ field in the hid_device_info struct to distinguish
+ between interfaces. */
+ unsigned char data[256];
+#ifdef DETACH_KERNEL_DRIVER
+ int detached = 0;
+ /* Usage Page and Usage */
+ res = libusb_kernel_driver_active(handle, interface_num);
+ if (res == 1) {
+ res = libusb_detach_kernel_driver(handle, interface_num);
+ if (res < 0)
+ LOG("Couldn't detach kernel driver, even though a kernel driver was attached.");
+ else
+ detached = 1;
+ }
+#endif
+ res = libusb_claim_interface(handle, interface_num);
+ if (res >= 0) {
+ /* Get the HID Report Descriptor. */
+ res = libusb_control_transfer(handle, LIBUSB_ENDPOINT_IN|LIBUSB_RECIPIENT_INTERFACE, LIBUSB_REQUEST_GET_DESCRIPTOR, (LIBUSB_DT_REPORT << 8)|interface_num, 0, data, sizeof(data), 5000);
+ if (res >= 0) {
+ unsigned short page=0, usage=0;
+ /* Parse the usage and usage page
+ out of the report descriptor. */
+ get_usage(data, res, &page, &usage);
+ cur_dev->usage_page = page;
+ cur_dev->usage = usage;
+ }
+ else
+ LOG("libusb_control_transfer() for getting the HID report failed with %d\n", res);
+
+ /* Release the interface */
+ res = libusb_release_interface(handle, interface_num);
+ if (res < 0)
+ LOG("Can't release the interface.\n");
+ }
+ else
+ LOG("Can't claim interface %d\n", res);
+#ifdef DETACH_KERNEL_DRIVER
+ /* Re-attach kernel driver if necessary. */
+ if (detached) {
+ res = libusb_attach_kernel_driver(handle, interface_num);
+ if (res < 0)
+ LOG("Couldn't re-attach kernel driver.\n");
+ }
+#endif
+}
+#endif /* INVASIVE_GET_USAGE */
+
+ libusb_close(handle);
+ }
+ /* VID/PID */
+ cur_dev->vendor_id = dev_vid;
+ cur_dev->product_id = dev_pid;
+
+ /* Release Number */
+ cur_dev->release_number = desc.bcdDevice;
+
+ /* Interface Number */
+ cur_dev->interface_number = interface_num;
+ }
+ }
+ } /* altsettings */
+ } /* interfaces */
+ libusb_free_config_descriptor(conf_desc);
+ }
+ }
+
+ libusb_free_device_list(devs, 1);
+
+ return root;
+}
+
+void HID_API_EXPORT hid_free_enumeration(struct hid_device_info *devs)
+{
+ struct hid_device_info *d = devs;
+ while (d) {
+ struct hid_device_info *next = d->next;
+ free(d->path);
+ free(d->serial_number);
+ free(d->manufacturer_string);
+ free(d->product_string);
+ free(d);
+ d = next;
+ }
+}
+
+hid_device * hid_open(unsigned short vendor_id, unsigned short product_id, const wchar_t *serial_number)
+{
+ struct hid_device_info *devs, *cur_dev;
+ const char *path_to_open = NULL;
+ hid_device *handle = NULL;
+
+ devs = hid_enumerate(vendor_id, product_id);
+ cur_dev = devs;
+ while (cur_dev) {
+ if (cur_dev->vendor_id == vendor_id &&
+ cur_dev->product_id == product_id) {
+ if (serial_number) {
+ if (wcscmp(serial_number, cur_dev->serial_number) == 0) {
+ path_to_open = cur_dev->path;
+ break;
+ }
+ }
+ else {
+ path_to_open = cur_dev->path;
+ break;
+ }
+ }
+ cur_dev = cur_dev->next;
+ }
+
+ if (path_to_open) {
+ /* Open the device */
+ handle = hid_open_path(path_to_open);
+ }
+
+ hid_free_enumeration(devs);
+
+ return handle;
+}
+
+static void read_callback(struct libusb_transfer *transfer)
+{
+ hid_device *dev = transfer->user_data;
+ int res;
+
+ if (transfer->status == LIBUSB_TRANSFER_COMPLETED) {
+
+ struct input_report *rpt = malloc(sizeof(*rpt));
+ rpt->data = malloc(transfer->actual_length);
+ memcpy(rpt->data, transfer->buffer, transfer->actual_length);
+ rpt->len = transfer->actual_length;
+ rpt->next = NULL;
+
+ pthread_mutex_lock(&dev->mutex);
+
+ /* Attach the new report object to the end of the list. */
+ if (dev->input_reports == NULL) {
+ /* The list is empty. Put it at the root. */
+ dev->input_reports = rpt;
+ pthread_cond_signal(&dev->condition);
+ }
+ else {
+ /* Find the end of the list and attach. */
+ struct input_report *cur = dev->input_reports;
+ int num_queued = 0;
+ while (cur->next != NULL) {
+ cur = cur->next;
+ num_queued++;
+ }
+ cur->next = rpt;
+
+ /* Pop one off if we've reached 30 in the queue. This
+ way we don't grow forever if the user never reads
+ anything from the device. */
+ if (num_queued > 30) {
+ return_data(dev, NULL, 0);
+ }
+ }
+ pthread_mutex_unlock(&dev->mutex);
+ }
+ else if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
+ dev->shutdown_thread = 1;
+ dev->cancelled = 1;
+ return;
+ }
+ else if (transfer->status == LIBUSB_TRANSFER_NO_DEVICE) {
+ dev->shutdown_thread = 1;
+ dev->cancelled = 1;
+ return;
+ }
+ else if (transfer->status == LIBUSB_TRANSFER_TIMED_OUT) {
+ //LOG("Timeout (normal)\n");
+ }
+ else {
+ LOG("Unknown transfer code: %d\n", transfer->status);
+ }
+
+ /* Re-submit the transfer object. */
+ res = libusb_submit_transfer(transfer);
+ if (res != 0) {
+ LOG("Unable to submit URB. libusb error code: %d\n", res);
+ dev->shutdown_thread = 1;
+ dev->cancelled = 1;
+ }
+}
+
+
+static void *read_thread(void *param)
+{
+ hid_device *dev = param;
+ unsigned char *buf;
+ const size_t length = dev->input_ep_max_packet_size;
+
+ /* Set up the transfer object. */
+ buf = malloc(length);
+ dev->transfer = libusb_alloc_transfer(0);
+ libusb_fill_interrupt_transfer(dev->transfer,
+ dev->device_handle,
+ dev->input_endpoint,
+ buf,
+ length,
+ read_callback,
+ dev,
+ 5000/*timeout*/);
+
+ /* Make the first submission. Further submissions are made
+ from inside read_callback() */
+ libusb_submit_transfer(dev->transfer);
+
+ /* Notify the main thread that the read thread is up and running. */
+ pthread_barrier_wait(&dev->barrier);
+
+ /* Handle all the events. */
+ while (!dev->shutdown_thread) {
+ int res;
+ res = libusb_handle_events(usb_context);
+ if (res < 0) {
+ /* There was an error. */
+ LOG("read_thread(): libusb reports error # %d\n", res);
+
+ /* Break out of this loop only on fatal error.*/
+ if (res != LIBUSB_ERROR_BUSY &&
+ res != LIBUSB_ERROR_TIMEOUT &&
+ res != LIBUSB_ERROR_OVERFLOW &&
+ res != LIBUSB_ERROR_INTERRUPTED) {
+ break;
+ }
+ }
+ }
+
+ /* Cancel any transfer that may be pending. This call will fail
+ if no transfers are pending, but that's OK. */
+ libusb_cancel_transfer(dev->transfer);
+
+ while (!dev->cancelled)
+ libusb_handle_events_completed(usb_context, &dev->cancelled);
+
+ /* Now that the read thread is stopping, Wake any threads which are
+ waiting on data (in hid_read_timeout()). Do this under a mutex to
+ make sure that a thread which is about to go to sleep waiting on
+ the condition acutally will go to sleep before the condition is
+ signaled. */
+ pthread_mutex_lock(&dev->mutex);
+ pthread_cond_broadcast(&dev->condition);
+ pthread_mutex_unlock(&dev->mutex);
+
+ /* The dev->transfer->buffer and dev->transfer objects are cleaned up
+ in hid_close(). They are not cleaned up here because this thread
+ could end either due to a disconnect or due to a user
+ call to hid_close(). In both cases the objects can be safely
+ cleaned up after the call to pthread_join() (in hid_close()), but
+ since hid_close() calls libusb_cancel_transfer(), on these objects,
+ they can not be cleaned up here. */
+
+ return NULL;
+}
+
+
+hid_device * HID_API_EXPORT hid_open_path(const char *path)
+{
+ hid_device *dev = NULL;
+
+ libusb_device **devs;
+ libusb_device *usb_dev;
+ int res;
+ int d = 0;
+ int good_open = 0;
+
+ if(hid_init() < 0)
+ return NULL;
+
+ dev = new_hid_device();
+
+ libusb_get_device_list(usb_context, &devs);
+ while ((usb_dev = devs[d++]) != NULL) {
+ struct libusb_device_descriptor desc;
+ struct libusb_config_descriptor *conf_desc = NULL;
+ int i,j,k;
+ libusb_get_device_descriptor(usb_dev, &desc);
+
+ if (libusb_get_active_config_descriptor(usb_dev, &conf_desc) < 0)
+ continue;
+ for (j = 0; j < conf_desc->bNumInterfaces; j++) {
+ const struct libusb_interface *intf = &conf_desc->interface[j];
+ for (k = 0; k < intf->num_altsetting; k++) {
+ const struct libusb_interface_descriptor *intf_desc;
+ intf_desc = &intf->altsetting[k];
+ if (intf_desc->bInterfaceClass == LIBUSB_CLASS_HID) {
+ char *dev_path = make_path(usb_dev, intf_desc->bInterfaceNumber);
+ if (!strcmp(dev_path, path)) {
+ /* Matched Paths. Open this device */
+
+ /* OPEN HERE */
+ res = libusb_open(usb_dev, &dev->device_handle);
+ if (res < 0) {
+ LOG("can't open device\n");
+ free(dev_path);
+ break;
+ }
+ good_open = 1;
+#ifdef DETACH_KERNEL_DRIVER
+ /* Detach the kernel driver, but only if the
+ device is managed by the kernel */
+ if (libusb_kernel_driver_active(dev->device_handle, intf_desc->bInterfaceNumber) == 1) {
+ res = libusb_detach_kernel_driver(dev->device_handle, intf_desc->bInterfaceNumber);
+ if (res < 0) {
+ libusb_close(dev->device_handle);
+ LOG("Unable to detach Kernel Driver\n");
+ free(dev_path);
+ good_open = 0;
+ break;
+ }
+ }
+#endif
+ res = libusb_claim_interface(dev->device_handle, intf_desc->bInterfaceNumber);
+ if (res < 0) {
+ LOG("can't claim interface %d: %d\n", intf_desc->bInterfaceNumber, res);
+ free(dev_path);
+ libusb_close(dev->device_handle);
+ good_open = 0;
+ break;
+ }
+
+ /* Store off the string descriptor indexes */
+ dev->manufacturer_index = desc.iManufacturer;
+ dev->product_index = desc.iProduct;
+ dev->serial_index = desc.iSerialNumber;
+
+ /* Store off the interface number */
+ dev->interface = intf_desc->bInterfaceNumber;
+
+ /* Find the INPUT and OUTPUT endpoints. An
+ OUTPUT endpoint is not required. */
+ for (i = 0; i < intf_desc->bNumEndpoints; i++) {
+ const struct libusb_endpoint_descriptor *ep
+ = &intf_desc->endpoint[i];
+
+ /* Determine the type and direction of this
+ endpoint. */
+ int is_interrupt =
+ (ep->bmAttributes & LIBUSB_TRANSFER_TYPE_MASK)
+ == LIBUSB_TRANSFER_TYPE_INTERRUPT;
+ int is_output =
+ (ep->bEndpointAddress & LIBUSB_ENDPOINT_DIR_MASK)
+ == LIBUSB_ENDPOINT_OUT;
+ int is_input =
+ (ep->bEndpointAddress & LIBUSB_ENDPOINT_DIR_MASK)
+ == LIBUSB_ENDPOINT_IN;
+
+ /* Decide whether to use it for intput or output. */
+ if (dev->input_endpoint == 0 &&
+ is_interrupt && is_input) {
+ /* Use this endpoint for INPUT */
+ dev->input_endpoint = ep->bEndpointAddress;
+ dev->input_ep_max_packet_size = ep->wMaxPacketSize;
+ }
+ if (dev->output_endpoint == 0 &&
+ is_interrupt && is_output) {
+ /* Use this endpoint for OUTPUT */
+ dev->output_endpoint = ep->bEndpointAddress;
+ }
+ }
+
+ pthread_create(&dev->thread, NULL, read_thread, dev);
+
+ /* Wait here for the read thread to be initialized. */
+ pthread_barrier_wait(&dev->barrier);
+
+ }
+ free(dev_path);
+ }
+ }
+ }
+ libusb_free_config_descriptor(conf_desc);
+
+ }
+
+ libusb_free_device_list(devs, 1);
+
+ /* If we have a good handle, return it. */
+ if (good_open) {
+ return dev;
+ }
+ else {
+ /* Unable to open any devices. */
+ free_hid_device(dev);
+ return NULL;
+ }
+}
+
+
+int HID_API_EXPORT hid_write(hid_device *dev, const unsigned char *data, size_t length)
+{
+ int res;
+ int report_number = data[0];
+ int skipped_report_id = 0;
+
+ if (report_number == 0x0) {
+ data++;
+ length--;
+ skipped_report_id = 1;
+ }
+
+
+ if (dev->output_endpoint <= 0) {
+ /* No interrput out endpoint. Use the Control Endpoint */
+ res = libusb_control_transfer(dev->device_handle,
+ LIBUSB_REQUEST_TYPE_CLASS|LIBUSB_RECIPIENT_INTERFACE|LIBUSB_ENDPOINT_OUT,
+ 0x09/*HID Set_Report*/,
+ (2/*HID output*/ << 8) | report_number,
+ dev->interface,
+ (unsigned char *)data, length,
+ 1000/*timeout millis*/);
+
+ if (res < 0)
+ return -1;
+
+ if (skipped_report_id)
+ length++;
+
+ return length;
+ }
+ else {
+ /* Use the interrupt out endpoint */
+ int actual_length;
+ res = libusb_interrupt_transfer(dev->device_handle,
+ dev->output_endpoint,
+ (unsigned char*)data,
+ length,
+ &actual_length, 1000);
+
+ if (res < 0)
+ return -1;
+
+ if (skipped_report_id)
+ actual_length++;
+
+ return actual_length;
+ }
+}
+
+/* Helper function, to simplify hid_read().
+ This should be called with dev->mutex locked. */
+static int return_data(hid_device *dev, unsigned char *data, size_t length)
+{
+ /* Copy the data out of the linked list item (rpt) into the
+ return buffer (data), and delete the liked list item. */
+ struct input_report *rpt = dev->input_reports;
+ size_t len = (length < rpt->len)? length: rpt->len;
+ if (len > 0)
+ memcpy(data, rpt->data, len);
+ dev->input_reports = rpt->next;
+ free(rpt->data);
+ free(rpt);
+ return len;
+}
+
+static void cleanup_mutex(void *param)
+{
+ hid_device *dev = param;
+ pthread_mutex_unlock(&dev->mutex);
+}
+
+
+int HID_API_EXPORT hid_read_timeout(hid_device *dev, unsigned char *data, size_t length, int milliseconds)
+{
+ int bytes_read = -1;
+
+#if 0
+ int transferred;
+ int res = libusb_interrupt_transfer(dev->device_handle, dev->input_endpoint, data, length, &transferred, 5000);
+ LOG("transferred: %d\n", transferred);
+ return transferred;
+#endif
+
+ pthread_mutex_lock(&dev->mutex);
+ pthread_cleanup_push(&cleanup_mutex, dev);
+
+ /* There's an input report queued up. Return it. */
+ if (dev->input_reports) {
+ /* Return the first one */
+ bytes_read = return_data(dev, data, length);
+ goto ret;
+ }
+
+ if (dev->shutdown_thread) {
+ /* This means the device has been disconnected.
+ An error code of -1 should be returned. */
+ bytes_read = -1;
+ goto ret;
+ }
+
+ if (milliseconds == -1) {
+ /* Blocking */
+ while (!dev->input_reports && !dev->shutdown_thread) {
+ pthread_cond_wait(&dev->condition, &dev->mutex);
+ }
+ if (dev->input_reports) {
+ bytes_read = return_data(dev, data, length);
+ }
+ }
+ else if (milliseconds > 0) {
+ /* Non-blocking, but called with timeout. */
+ int res;
+ struct timespec ts;
+ clock_gettime(CLOCK_REALTIME, &ts);
+ ts.tv_sec += milliseconds / 1000;
+ ts.tv_nsec += (milliseconds % 1000) * 1000000;
+ if (ts.tv_nsec >= 1000000000L) {
+ ts.tv_sec++;
+ ts.tv_nsec -= 1000000000L;
+ }
+
+ while (!dev->input_reports && !dev->shutdown_thread) {
+ res = pthread_cond_timedwait(&dev->condition, &dev->mutex, &ts);
+ if (res == 0) {
+ if (dev->input_reports) {
+ bytes_read = return_data(dev, data, length);
+ break;
+ }
+
+ /* If we're here, there was a spurious wake up
+ or the read thread was shutdown. Run the
+ loop again (ie: don't break). */
+ }
+ else if (res == ETIMEDOUT) {
+ /* Timed out. */
+ bytes_read = 0;
+ break;
+ }
+ else {
+ /* Error. */
+ bytes_read = -1;
+ break;
+ }
+ }
+ }
+ else {
+ /* Purely non-blocking */
+ bytes_read = 0;
+ }
+
+ret:
+ pthread_mutex_unlock(&dev->mutex);
+ pthread_cleanup_pop(0);
+
+ return bytes_read;
+}
+
+int HID_API_EXPORT hid_read(hid_device *dev, unsigned char *data, size_t length)
+{
+ return hid_read_timeout(dev, data, length, dev->blocking ? -1 : 0);
+}
+
+int HID_API_EXPORT hid_set_nonblocking(hid_device *dev, int nonblock)
+{
+ dev->blocking = !nonblock;
+
+ return 0;
+}
+
+
+int HID_API_EXPORT hid_send_feature_report(hid_device *dev, const unsigned char *data, size_t length)
+{
+ int res = -1;
+ int skipped_report_id = 0;
+ int report_number = data[0];
+
+ if (report_number == 0x0) {
+ data++;
+ length--;
+ skipped_report_id = 1;
+ }
+
+ res = libusb_control_transfer(dev->device_handle,
+ LIBUSB_REQUEST_TYPE_CLASS|LIBUSB_RECIPIENT_INTERFACE|LIBUSB_ENDPOINT_OUT,
+ 0x09/*HID set_report*/,
+ (3/*HID feature*/ << 8) | report_number,
+ dev->interface,
+ (unsigned char *)data, length,
+ 1000/*timeout millis*/);
+
+ if (res < 0)
+ return -1;
+
+ /* Account for the report ID */
+ if (skipped_report_id)
+ length++;
+
+ return length;
+}
+
+int HID_API_EXPORT hid_get_feature_report(hid_device *dev, unsigned char *data, size_t length)
+{
+ int res = -1;
+ int skipped_report_id = 0;
+ int report_number = data[0];
+
+ if (report_number == 0x0) {
+ /* Offset the return buffer by 1, so that the report ID
+ will remain in byte 0. */
+ data++;
+ length--;
+ skipped_report_id = 1;
+ }
+ res = libusb_control_transfer(dev->device_handle,
+ LIBUSB_REQUEST_TYPE_CLASS|LIBUSB_RECIPIENT_INTERFACE|LIBUSB_ENDPOINT_IN,
+ 0x01/*HID get_report*/,
+ (3/*HID feature*/ << 8) | report_number,
+ dev->interface,
+ (unsigned char *)data, length,
+ 1000/*timeout millis*/);
+
+ if (res < 0)
+ return -1;
+
+ if (skipped_report_id)
+ res++;
+
+ return res;
+}
+
+
+void HID_API_EXPORT hid_close(hid_device *dev)
+{
+ if (!dev)
+ return;
+
+ /* Cause read_thread() to stop. */
+ dev->shutdown_thread = 1;
+ libusb_cancel_transfer(dev->transfer);
+
+ /* Wait for read_thread() to end. */
+ pthread_join(dev->thread, NULL);
+
+ /* Clean up the Transfer objects allocated in read_thread(). */
+ free(dev->transfer->buffer);
+ libusb_free_transfer(dev->transfer);
+
+ /* release the interface */
+ libusb_release_interface(dev->device_handle, dev->interface);
+
+ /* Close the handle */
+ libusb_close(dev->device_handle);
+
+ /* Clear out the queue of received reports. */
+ pthread_mutex_lock(&dev->mutex);
+ while (dev->input_reports) {
+ return_data(dev, NULL, 0);
+ }
+ pthread_mutex_unlock(&dev->mutex);
+
+ free_hid_device(dev);
+}
+
+
+int HID_API_EXPORT_CALL hid_get_manufacturer_string(hid_device *dev, wchar_t *string, size_t maxlen)
+{
+ return hid_get_indexed_string(dev, dev->manufacturer_index, string, maxlen);
+}
+
+int HID_API_EXPORT_CALL hid_get_product_string(hid_device *dev, wchar_t *string, size_t maxlen)
+{
+ return hid_get_indexed_string(dev, dev->product_index, string, maxlen);
+}
+
+int HID_API_EXPORT_CALL hid_get_serial_number_string(hid_device *dev, wchar_t *string, size_t maxlen)
+{
+ return hid_get_indexed_string(dev, dev->serial_index, string, maxlen);
+}
+
+int HID_API_EXPORT_CALL hid_get_indexed_string(hid_device *dev, int string_index, wchar_t *string, size_t maxlen)
+{
+ wchar_t *str;
+
+ str = get_usb_string(dev->device_handle, string_index);
+ if (str) {
+ wcsncpy(string, str, maxlen);
+ string[maxlen-1] = L'\0';
+ free(str);
+ return 0;
+ }
+ else
+ return -1;
+}
+
+
+HID_API_EXPORT const wchar_t * HID_API_CALL hid_error(hid_device *dev)
+{
+ return NULL;
+}
+
+
+struct lang_map_entry {
+ const char *name;
+ const char *string_code;
+ uint16_t usb_code;
+};
+
+#define LANG(name,code,usb_code) { name, code, usb_code }
+static struct lang_map_entry lang_map[] = {
+ LANG("Afrikaans", "af", 0x0436),
+ LANG("Albanian", "sq", 0x041C),
+ LANG("Arabic - United Arab Emirates", "ar_ae", 0x3801),
+ LANG("Arabic - Bahrain", "ar_bh", 0x3C01),
+ LANG("Arabic - Algeria", "ar_dz", 0x1401),
+ LANG("Arabic - Egypt", "ar_eg", 0x0C01),
+ LANG("Arabic - Iraq", "ar_iq", 0x0801),
+ LANG("Arabic - Jordan", "ar_jo", 0x2C01),
+ LANG("Arabic - Kuwait", "ar_kw", 0x3401),
+ LANG("Arabic - Lebanon", "ar_lb", 0x3001),
+ LANG("Arabic - Libya", "ar_ly", 0x1001),
+ LANG("Arabic - Morocco", "ar_ma", 0x1801),
+ LANG("Arabic - Oman", "ar_om", 0x2001),
+ LANG("Arabic - Qatar", "ar_qa", 0x4001),
+ LANG("Arabic - Saudi Arabia", "ar_sa", 0x0401),
+ LANG("Arabic - Syria", "ar_sy", 0x2801),
+ LANG("Arabic - Tunisia", "ar_tn", 0x1C01),
+ LANG("Arabic - Yemen", "ar_ye", 0x2401),
+ LANG("Armenian", "hy", 0x042B),
+ LANG("Azeri - Latin", "az_az", 0x042C),
+ LANG("Azeri - Cyrillic", "az_az", 0x082C),
+ LANG("Basque", "eu", 0x042D),
+ LANG("Belarusian", "be", 0x0423),
+ LANG("Bulgarian", "bg", 0x0402),
+ LANG("Catalan", "ca", 0x0403),
+ LANG("Chinese - China", "zh_cn", 0x0804),
+ LANG("Chinese - Hong Kong SAR", "zh_hk", 0x0C04),
+ LANG("Chinese - Macau SAR", "zh_mo", 0x1404),
+ LANG("Chinese - Singapore", "zh_sg", 0x1004),
+ LANG("Chinese - Taiwan", "zh_tw", 0x0404),
+ LANG("Croatian", "hr", 0x041A),
+ LANG("Czech", "cs", 0x0405),
+ LANG("Danish", "da", 0x0406),
+ LANG("Dutch - Netherlands", "nl_nl", 0x0413),
+ LANG("Dutch - Belgium", "nl_be", 0x0813),
+ LANG("English - Australia", "en_au", 0x0C09),
+ LANG("English - Belize", "en_bz", 0x2809),
+ LANG("English - Canada", "en_ca", 0x1009),
+ LANG("English - Caribbean", "en_cb", 0x2409),
+ LANG("English - Ireland", "en_ie", 0x1809),
+ LANG("English - Jamaica", "en_jm", 0x2009),
+ LANG("English - New Zealand", "en_nz", 0x1409),
+ LANG("English - Phillippines", "en_ph", 0x3409),
+ LANG("English - Southern Africa", "en_za", 0x1C09),
+ LANG("English - Trinidad", "en_tt", 0x2C09),
+ LANG("English - Great Britain", "en_gb", 0x0809),
+ LANG("English - United States", "en_us", 0x0409),
+ LANG("Estonian", "et", 0x0425),
+ LANG("Farsi", "fa", 0x0429),
+ LANG("Finnish", "fi", 0x040B),
+ LANG("Faroese", "fo", 0x0438),
+ LANG("French - France", "fr_fr", 0x040C),
+ LANG("French - Belgium", "fr_be", 0x080C),
+ LANG("French - Canada", "fr_ca", 0x0C0C),
+ LANG("French - Luxembourg", "fr_lu", 0x140C),
+ LANG("French - Switzerland", "fr_ch", 0x100C),
+ LANG("Gaelic - Ireland", "gd_ie", 0x083C),
+ LANG("Gaelic - Scotland", "gd", 0x043C),
+ LANG("German - Germany", "de_de", 0x0407),
+ LANG("German - Austria", "de_at", 0x0C07),
+ LANG("German - Liechtenstein", "de_li", 0x1407),
+ LANG("German - Luxembourg", "de_lu", 0x1007),
+ LANG("German - Switzerland", "de_ch", 0x0807),
+ LANG("Greek", "el", 0x0408),
+ LANG("Hebrew", "he", 0x040D),
+ LANG("Hindi", "hi", 0x0439),
+ LANG("Hungarian", "hu", 0x040E),
+ LANG("Icelandic", "is", 0x040F),
+ LANG("Indonesian", "id", 0x0421),
+ LANG("Italian - Italy", "it_it", 0x0410),
+ LANG("Italian - Switzerland", "it_ch", 0x0810),
+ LANG("Japanese", "ja", 0x0411),
+ LANG("Korean", "ko", 0x0412),
+ LANG("Latvian", "lv", 0x0426),
+ LANG("Lithuanian", "lt", 0x0427),
+ LANG("F.Y.R.O. Macedonia", "mk", 0x042F),
+ LANG("Malay - Malaysia", "ms_my", 0x043E),
+ LANG("Malay – Brunei", "ms_bn", 0x083E),
+ LANG("Maltese", "mt", 0x043A),
+ LANG("Marathi", "mr", 0x044E),
+ LANG("Norwegian - Bokml", "no_no", 0x0414),
+ LANG("Norwegian - Nynorsk", "no_no", 0x0814),
+ LANG("Polish", "pl", 0x0415),
+ LANG("Portuguese - Portugal", "pt_pt", 0x0816),
+ LANG("Portuguese - Brazil", "pt_br", 0x0416),
+ LANG("Raeto-Romance", "rm", 0x0417),
+ LANG("Romanian - Romania", "ro", 0x0418),
+ LANG("Romanian - Republic of Moldova", "ro_mo", 0x0818),
+ LANG("Russian", "ru", 0x0419),
+ LANG("Russian - Republic of Moldova", "ru_mo", 0x0819),
+ LANG("Sanskrit", "sa", 0x044F),
+ LANG("Serbian - Cyrillic", "sr_sp", 0x0C1A),
+ LANG("Serbian - Latin", "sr_sp", 0x081A),
+ LANG("Setsuana", "tn", 0x0432),
+ LANG("Slovenian", "sl", 0x0424),
+ LANG("Slovak", "sk", 0x041B),
+ LANG("Sorbian", "sb", 0x042E),
+ LANG("Spanish - Spain (Traditional)", "es_es", 0x040A),
+ LANG("Spanish - Argentina", "es_ar", 0x2C0A),
+ LANG("Spanish - Bolivia", "es_bo", 0x400A),
+ LANG("Spanish - Chile", "es_cl", 0x340A),
+ LANG("Spanish - Colombia", "es_co", 0x240A),
+ LANG("Spanish - Costa Rica", "es_cr", 0x140A),
+ LANG("Spanish - Dominican Republic", "es_do", 0x1C0A),
+ LANG("Spanish - Ecuador", "es_ec", 0x300A),
+ LANG("Spanish - Guatemala", "es_gt", 0x100A),
+ LANG("Spanish - Honduras", "es_hn", 0x480A),
+ LANG("Spanish - Mexico", "es_mx", 0x080A),
+ LANG("Spanish - Nicaragua", "es_ni", 0x4C0A),
+ LANG("Spanish - Panama", "es_pa", 0x180A),
+ LANG("Spanish - Peru", "es_pe", 0x280A),
+ LANG("Spanish - Puerto Rico", "es_pr", 0x500A),
+ LANG("Spanish - Paraguay", "es_py", 0x3C0A),
+ LANG("Spanish - El Salvador", "es_sv", 0x440A),
+ LANG("Spanish - Uruguay", "es_uy", 0x380A),
+ LANG("Spanish - Venezuela", "es_ve", 0x200A),
+ LANG("Southern Sotho", "st", 0x0430),
+ LANG("Swahili", "sw", 0x0441),
+ LANG("Swedish - Sweden", "sv_se", 0x041D),
+ LANG("Swedish - Finland", "sv_fi", 0x081D),
+ LANG("Tamil", "ta", 0x0449),
+ LANG("Tatar", "tt", 0X0444),
+ LANG("Thai", "th", 0x041E),
+ LANG("Turkish", "tr", 0x041F),
+ LANG("Tsonga", "ts", 0x0431),
+ LANG("Ukrainian", "uk", 0x0422),
+ LANG("Urdu", "ur", 0x0420),
+ LANG("Uzbek - Cyrillic", "uz_uz", 0x0843),
+ LANG("Uzbek – Latin", "uz_uz", 0x0443),
+ LANG("Vietnamese", "vi", 0x042A),
+ LANG("Xhosa", "xh", 0x0434),
+ LANG("Yiddish", "yi", 0x043D),
+ LANG("Zulu", "zu", 0x0435),
+ LANG(NULL, NULL, 0x0),
+};
+
+uint16_t get_usb_code_for_current_locale(void)
+{
+ char *locale;
+ char search_string[64];
+ char *ptr;
+ struct lang_map_entry *lang;
+
+ /* Get the current locale. */
+ locale = setlocale(0, NULL);
+ if (!locale)
+ return 0x0;
+
+ /* Make a copy of the current locale string. */
+ strncpy(search_string, locale, sizeof(search_string));
+ search_string[sizeof(search_string)-1] = '\0';
+
+ /* Chop off the encoding part, and make it lower case. */
+ ptr = search_string;
+ while (*ptr) {
+ *ptr = tolower(*ptr);
+ if (*ptr == '.') {
+ *ptr = '\0';
+ break;
+ }
+ ptr++;
+ }
+
+ /* Find the entry which matches the string code of our locale. */
+ lang = lang_map;
+ while (lang->string_code) {
+ if (!strcmp(lang->string_code, search_string)) {
+ return lang->usb_code;
+ }
+ lang++;
+ }
+
+ /* There was no match. Find with just the language only. */
+ /* Chop off the variant. Chop it off at the '_'. */
+ ptr = search_string;
+ while (*ptr) {
+ *ptr = tolower(*ptr);
+ if (*ptr == '_') {
+ *ptr = '\0';
+ break;
+ }
+ ptr++;
+ }
+
+#if 0 /* TODO: Do we need this? */
+ /* Find the entry which matches the string code of our language. */
+ lang = lang_map;
+ while (lang->string_code) {
+ if (!strcmp(lang->string_code, search_string)) {
+ return lang->usb_code;
+ }
+ lang++;
+ }
+#endif
+
+ /* Found nothing. */
+ return 0x0;
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/vendor/github.com/GeertJohan/go.hid/hid_windows.c b/vendor/github.com/GeertJohan/go.hid/hid_windows.c
new file mode 100644
index 0000000..3dee05b
--- /dev/null
+++ b/vendor/github.com/GeertJohan/go.hid/hid_windows.c
@@ -0,0 +1,923 @@
+/*******************************************************
+ HIDAPI - Multi-Platform library for
+ communication with HID devices.
+
+ Alan Ott
+ Signal 11 Software
+
+ 8/22/2009
+
+ Copyright 2009, All Rights Reserved.
+
+ At the discretion of the user of this library,
+ this software may be licensed under the terms of the
+ GNU General Public License v3, a BSD-Style license, or the
+ original HIDAPI license as outlined in the LICENSE.txt,
+ LICENSE-gpl3.txt, LICENSE-bsd.txt, and LICENSE-orig.txt
+ files located at the root of the source distribution.
+ These files may also be found in the public source
+ code repository located at:
+ http://github.com/signal11/hidapi .
+********************************************************/
+
+#include <windows.h>
+
+#ifndef _NTDEF_
+typedef LONG NTSTATUS;
+#endif
+
+#ifdef __MINGW32__
+#include <ntdef.h>
+#include <winbase.h>
+#endif
+
+#ifdef __CYGWIN__
+#include <ntdef.h>
+#define _wcsdup wcsdup
+#endif
+
+/*#define HIDAPI_USE_DDK*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ #include <setupapi.h>
+ #include <winioctl.h>
+ #ifdef HIDAPI_USE_DDK
+ #include <hidsdi.h>
+ #endif
+
+ /* Copied from inc/ddk/hidclass.h, part of the Windows DDK. */
+ #define HID_OUT_CTL_CODE(id) \
+ CTL_CODE(FILE_DEVICE_KEYBOARD, (id), METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
+ #define IOCTL_HID_GET_FEATURE HID_OUT_CTL_CODE(100)
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+
+
+#include "hidapi.h"
+
+#ifdef _MSC_VER
+ /* Thanks Microsoft, but I know how to use strncpy(). */
+ #pragma warning(disable:4996)
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef HIDAPI_USE_DDK
+ /* Since we're not building with the DDK, and the HID header
+ files aren't part of the SDK, we have to define all this
+ stuff here. In lookup_functions(), the function pointers
+ defined below are set. */
+ typedef struct _HIDD_ATTRIBUTES{
+ ULONG Size;
+ USHORT VendorID;
+ USHORT ProductID;
+ USHORT VersionNumber;
+ } HIDD_ATTRIBUTES, *PHIDD_ATTRIBUTES;
+
+ typedef USHORT USAGE;
+ typedef struct _HIDP_CAPS {
+ USAGE Usage;
+ USAGE UsagePage;
+ USHORT InputReportByteLength;
+ USHORT OutputReportByteLength;
+ USHORT FeatureReportByteLength;
+ USHORT Reserved[17];
+ USHORT fields_not_used_by_hidapi[10];
+ } HIDP_CAPS, *PHIDP_CAPS;
+ typedef void* PHIDP_PREPARSED_DATA;
+ #define HIDP_STATUS_SUCCESS 0x110000
+
+ typedef BOOLEAN (__stdcall *HidD_GetAttributes_)(HANDLE device, PHIDD_ATTRIBUTES attrib);
+ typedef BOOLEAN (__stdcall *HidD_GetSerialNumberString_)(HANDLE device, PVOID buffer, ULONG buffer_len);
+ typedef BOOLEAN (__stdcall *HidD_GetManufacturerString_)(HANDLE handle, PVOID buffer, ULONG buffer_len);
+ typedef BOOLEAN (__stdcall *HidD_GetProductString_)(HANDLE handle, PVOID buffer, ULONG buffer_len);
+ typedef BOOLEAN (__stdcall *HidD_SetFeature_)(HANDLE handle, PVOID data, ULONG length);
+ typedef BOOLEAN (__stdcall *HidD_GetFeature_)(HANDLE handle, PVOID data, ULONG length);
+ typedef BOOLEAN (__stdcall *HidD_GetIndexedString_)(HANDLE handle, ULONG string_index, PVOID buffer, ULONG buffer_len);
+ typedef BOOLEAN (__stdcall *HidD_GetPreparsedData_)(HANDLE handle, PHIDP_PREPARSED_DATA *preparsed_data);
+ typedef BOOLEAN (__stdcall *HidD_FreePreparsedData_)(PHIDP_PREPARSED_DATA preparsed_data);
+ typedef NTSTATUS (__stdcall *HidP_GetCaps_)(PHIDP_PREPARSED_DATA preparsed_data, HIDP_CAPS *caps);
+
+ static HidD_GetAttributes_ HidD_GetAttributes;
+ static HidD_GetSerialNumberString_ HidD_GetSerialNumberString;
+ static HidD_GetManufacturerString_ HidD_GetManufacturerString;
+ static HidD_GetProductString_ HidD_GetProductString;
+ static HidD_SetFeature_ HidD_SetFeature;
+ static HidD_GetFeature_ HidD_GetFeature;
+ static HidD_GetIndexedString_ HidD_GetIndexedString;
+ static HidD_GetPreparsedData_ HidD_GetPreparsedData;
+ static HidD_FreePreparsedData_ HidD_FreePreparsedData;
+ static HidP_GetCaps_ HidP_GetCaps;
+
+ static HMODULE lib_handle = NULL;
+ static BOOLEAN initialized = FALSE;
+#endif /* HIDAPI_USE_DDK */
+
+struct hid_device_ {
+ HANDLE device_handle;
+ BOOL blocking;
+ USHORT output_report_length;
+ size_t input_report_length;
+ void *last_error_str;
+ DWORD last_error_num;
+ BOOL read_pending;
+ char *read_buf;
+ OVERLAPPED ol;
+};
+
+static hid_device *new_hid_device()
+{
+ hid_device *dev = (hid_device*) calloc(1, sizeof(hid_device));
+ dev->device_handle = INVALID_HANDLE_VALUE;
+ dev->blocking = TRUE;
+ dev->output_report_length = 0;
+ dev->input_report_length = 0;
+ dev->last_error_str = NULL;
+ dev->last_error_num = 0;
+ dev->read_pending = FALSE;
+ dev->read_buf = NULL;
+ memset(&dev->ol, 0, sizeof(dev->ol));
+ dev->ol.hEvent = CreateEvent(NULL, FALSE, FALSE /*inital state f=nonsignaled*/, NULL);
+
+ return dev;
+}
+
+static void free_hid_device(hid_device *dev)
+{
+ CloseHandle(dev->ol.hEvent);
+ CloseHandle(dev->device_handle);
+ LocalFree(dev->last_error_str);
+ free(dev->read_buf);
+ free(dev);
+}
+
+static void register_error(hid_device *device, const char *op)
+{
+ WCHAR *ptr, *msg;
+
+ FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+ FORMAT_MESSAGE_FROM_SYSTEM |
+ FORMAT_MESSAGE_IGNORE_INSERTS,
+ NULL,
+ GetLastError(),
+ MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+ (LPVOID)&msg, 0/*sz*/,
+ NULL);
+
+ /* Get rid of the CR and LF that FormatMessage() sticks at the
+ end of the message. Thanks Microsoft! */
+ ptr = msg;
+ while (*ptr) {
+ if (*ptr == '\r') {
+ *ptr = 0x0000;
+ break;
+ }
+ ptr++;
+ }
+
+ /* Store the message off in the Device entry so that
+ the hid_error() function can pick it up. */
+ LocalFree(device->last_error_str);
+ device->last_error_str = msg;
+}
+
+#ifndef HIDAPI_USE_DDK
+static int lookup_functions()
+{
+ lib_handle = LoadLibraryA("hid.dll");
+ if (lib_handle) {
+#define RESOLVE(x) x = (x##_)GetProcAddress(lib_handle, #x); if (!x) return -1;
+ RESOLVE(HidD_GetAttributes);
+ RESOLVE(HidD_GetSerialNumberString);
+ RESOLVE(HidD_GetManufacturerString);
+ RESOLVE(HidD_GetProductString);
+ RESOLVE(HidD_SetFeature);
+ RESOLVE(HidD_GetFeature);
+ RESOLVE(HidD_GetIndexedString);
+ RESOLVE(HidD_GetPreparsedData);
+ RESOLVE(HidD_FreePreparsedData);
+ RESOLVE(HidP_GetCaps);
+#undef RESOLVE
+ }
+ else
+ return -1;
+
+ return 0;
+}
+#endif
+
+static HANDLE open_device(const char *path, BOOL enumerate)
+{
+ HANDLE handle;
+ DWORD desired_access = (enumerate)? 0: (GENERIC_WRITE | GENERIC_READ);
+ DWORD share_mode = (enumerate)?
+ FILE_SHARE_READ|FILE_SHARE_WRITE:
+ FILE_SHARE_READ;
+
+ handle = CreateFileA(path,
+ desired_access,
+ share_mode,
+ NULL,
+ OPEN_EXISTING,
+ FILE_FLAG_OVERLAPPED,/*FILE_ATTRIBUTE_NORMAL,*/
+ 0);
+
+ return handle;
+}
+
+int HID_API_EXPORT hid_init(void)
+{
+#ifndef HIDAPI_USE_DDK
+ if (!initialized) {
+ if (lookup_functions() < 0) {
+ hid_exit();
+ return -1;
+ }
+ initialized = TRUE;
+ }
+#endif
+ return 0;
+}
+
+int HID_API_EXPORT hid_exit(void)
+{
+#ifndef HIDAPI_USE_DDK
+ if (lib_handle)
+ FreeLibrary(lib_handle);
+ lib_handle = NULL;
+ initialized = FALSE;
+#endif
+ return 0;
+}
+
+struct hid_device_info HID_API_EXPORT * HID_API_CALL hid_enumerate(unsigned short vendor_id, unsigned short product_id)
+{
+ BOOL res;
+ struct hid_device_info *root = NULL; /* return object */
+ struct hid_device_info *cur_dev = NULL;
+
+ /* Windows objects for interacting with the driver. */
+ GUID InterfaceClassGuid = {0x4d1e55b2, 0xf16f, 0x11cf, {0x88, 0xcb, 0x00, 0x11, 0x11, 0x00, 0x00, 0x30} };
+ SP_DEVINFO_DATA devinfo_data;
+ SP_DEVICE_INTERFACE_DATA device_interface_data;
+ SP_DEVICE_INTERFACE_DETAIL_DATA_A *device_interface_detail_data = NULL;
+ HDEVINFO device_info_set = INVALID_HANDLE_VALUE;
+ int device_index = 0;
+ int i;
+
+ if (hid_init() < 0)
+ return NULL;
+
+ /* Initialize the Windows objects. */
+ memset(&devinfo_data, 0x0, sizeof(devinfo_data));
+ devinfo_data.cbSize = sizeof(SP_DEVINFO_DATA);
+ device_interface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
+
+ /* Get information for all the devices belonging to the HID class. */
+ device_info_set = SetupDiGetClassDevsA(&InterfaceClassGuid, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
+
+ /* Iterate over each device in the HID class, looking for the right one. */
+
+ for (;;) {
+ HANDLE write_handle = INVALID_HANDLE_VALUE;
+ DWORD required_size = 0;
+ HIDD_ATTRIBUTES attrib;
+
+ res = SetupDiEnumDeviceInterfaces(device_info_set,
+ NULL,
+ &InterfaceClassGuid,
+ device_index,
+ &device_interface_data);
+
+ if (!res) {
+ /* A return of FALSE from this function means that
+ there are no more devices. */
+ break;
+ }
+
+ /* Call with 0-sized detail size, and let the function
+ tell us how long the detail struct needs to be. The
+ size is put in &required_size. */
+ res = SetupDiGetDeviceInterfaceDetailA(device_info_set,
+ &device_interface_data,
+ NULL,
+ 0,
+ &required_size,
+ NULL);
+
+ /* Allocate a long enough structure for device_interface_detail_data. */
+ device_interface_detail_data = (SP_DEVICE_INTERFACE_DETAIL_DATA_A*) malloc(required_size);
+ device_interface_detail_data->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_A);
+
+ /* Get the detailed data for this device. The detail data gives us
+ the device path for this device, which is then passed into
+ CreateFile() to get a handle to the device. */
+ res = SetupDiGetDeviceInterfaceDetailA(device_info_set,
+ &device_interface_data,
+ device_interface_detail_data,
+ required_size,
+ NULL,
+ NULL);
+
+ if (!res) {
+ /* register_error(dev, "Unable to call SetupDiGetDeviceInterfaceDetail");
+ Continue to the next device. */
+ goto cont;
+ }
+
+ /* Make sure this device is of Setup Class "HIDClass" and has a
+ driver bound to it. */
+ for (i = 0; ; i++) {
+ char driver_name[256];
+
+ /* Populate devinfo_data. This function will return failure
+ when there are no more interfaces left. */
+ res = SetupDiEnumDeviceInfo(device_info_set, i, &devinfo_data);
+ if (!res)
+ goto cont;
+
+ res = SetupDiGetDeviceRegistryPropertyA(device_info_set, &devinfo_data,
+ SPDRP_CLASS, NULL, (PBYTE)driver_name, sizeof(driver_name), NULL);
+ if (!res)
+ goto cont;
+
+ if (strcmp(driver_name, "HIDClass") == 0) {
+ /* See if there's a driver bound. */
+ res = SetupDiGetDeviceRegistryPropertyA(device_info_set, &devinfo_data,
+ SPDRP_DRIVER, NULL, (PBYTE)driver_name, sizeof(driver_name), NULL);
+ if (res)
+ break;
+ }
+ }
+
+ //wprintf(L"HandleName: %s\n", device_interface_detail_data->DevicePath);
+
+ /* Open a handle to the device */
+ write_handle = open_device(device_interface_detail_data->DevicePath, TRUE);
+
+ /* Check validity of write_handle. */
+ if (write_handle == INVALID_HANDLE_VALUE) {
+ /* Unable to open the device. */
+ //register_error(dev, "CreateFile");
+ goto cont_close;
+ }
+
+
+ /* Get the Vendor ID and Product ID for this device. */
+ attrib.Size = sizeof(HIDD_ATTRIBUTES);
+ HidD_GetAttributes(write_handle, &attrib);
+ //wprintf(L"Product/Vendor: %x %x\n", attrib.ProductID, attrib.VendorID);
+
+ /* Check the VID/PID to see if we should add this
+ device to the enumeration list. */
+ if ((vendor_id == 0x0 || attrib.VendorID == vendor_id) &&
+ (product_id == 0x0 || attrib.ProductID == product_id)) {
+
+ #define WSTR_LEN 512
+ const char *str;
+ struct hid_device_info *tmp;
+ PHIDP_PREPARSED_DATA pp_data = NULL;
+ HIDP_CAPS caps;
+ BOOLEAN res;
+ NTSTATUS nt_res;
+ wchar_t wstr[WSTR_LEN]; /* TODO: Determine Size */
+ size_t len;
+
+ /* VID/PID match. Create the record. */
+ tmp = (struct hid_device_info*) calloc(1, sizeof(struct hid_device_info));
+ if (cur_dev) {
+ cur_dev->next = tmp;
+ }
+ else {
+ root = tmp;
+ }
+ cur_dev = tmp;
+
+ /* Get the Usage Page and Usage for this device. */
+ res = HidD_GetPreparsedData(write_handle, &pp_data);
+ if (res) {
+ nt_res = HidP_GetCaps(pp_data, &caps);
+ if (nt_res == HIDP_STATUS_SUCCESS) {
+ cur_dev->usage_page = caps.UsagePage;
+ cur_dev->usage = caps.Usage;
+ }
+
+ HidD_FreePreparsedData(pp_data);
+ }
+
+ /* Fill out the record */
+ cur_dev->next = NULL;
+ str = device_interface_detail_data->DevicePath;
+ if (str) {
+ len = strlen(str);
+ cur_dev->path = (char*) calloc(len+1, sizeof(char));
+ strncpy(cur_dev->path, str, len+1);
+ cur_dev->path[len] = '\0';
+ }
+ else
+ cur_dev->path = NULL;
+
+ /* Serial Number */
+ res = HidD_GetSerialNumberString(write_handle, wstr, sizeof(wstr));
+ wstr[WSTR_LEN-1] = 0x0000;
+ if (res) {
+ cur_dev->serial_number = _wcsdup(wstr);
+ }
+
+ /* Manufacturer String */
+ res = HidD_GetManufacturerString(write_handle, wstr, sizeof(wstr));
+ wstr[WSTR_LEN-1] = 0x0000;
+ if (res) {
+ cur_dev->manufacturer_string = _wcsdup(wstr);
+ }
+
+ /* Product String */
+ res = HidD_GetProductString(write_handle, wstr, sizeof(wstr));
+ wstr[WSTR_LEN-1] = 0x0000;
+ if (res) {
+ cur_dev->product_string = _wcsdup(wstr);
+ }
+
+ /* VID/PID */
+ cur_dev->vendor_id = attrib.VendorID;
+ cur_dev->product_id = attrib.ProductID;
+
+ /* Release Number */
+ cur_dev->release_number = attrib.VersionNumber;
+
+ /* Interface Number. It can sometimes be parsed out of the path
+ on Windows if a device has multiple interfaces. See
+ http://msdn.microsoft.com/en-us/windows/hardware/gg487473 or
+ search for "Hardware IDs for HID Devices" at MSDN. If it's not
+ in the path, it's set to -1. */
+ cur_dev->interface_number = -1;
+ if (cur_dev->path) {
+ char *interface_component = strstr(cur_dev->path, "&mi_");
+ if (interface_component) {
+ char *hex_str = interface_component + 4;
+ char *endptr = NULL;
+ cur_dev->interface_number = strtol(hex_str, &endptr, 16);
+ if (endptr == hex_str) {
+ /* The parsing failed. Set interface_number to -1. */
+ cur_dev->interface_number = -1;
+ }
+ }
+ }
+ }
+
+cont_close:
+ CloseHandle(write_handle);
+cont:
+ /* We no longer need the detail data. It can be freed */
+ free(device_interface_detail_data);
+
+ device_index++;
+
+ }
+
+ /* Close the device information handle. */
+ SetupDiDestroyDeviceInfoList(device_info_set);
+
+ return root;
+
+}
+
+void HID_API_EXPORT HID_API_CALL hid_free_enumeration(struct hid_device_info *devs)
+{
+ /* TODO: Merge this with the Linux version. This function is platform-independent. */
+ struct hid_device_info *d = devs;
+ while (d) {
+ struct hid_device_info *next = d->next;
+ free(d->path);
+ free(d->serial_number);
+ free(d->manufacturer_string);
+ free(d->product_string);
+ free(d);
+ d = next;
+ }
+}
+
+
+HID_API_EXPORT hid_device * HID_API_CALL hid_open(unsigned short vendor_id, unsigned short product_id, const wchar_t *serial_number)
+{
+ /* TODO: Merge this functions with the Linux version. This function should be platform independent. */
+ struct hid_device_info *devs, *cur_dev;
+ const char *path_to_open = NULL;
+ hid_device *handle = NULL;
+
+ devs = hid_enumerate(vendor_id, product_id);
+ cur_dev = devs;
+ while (cur_dev) {
+ if (cur_dev->vendor_id == vendor_id &&
+ cur_dev->product_id == product_id) {
+ if (serial_number) {
+ if (wcscmp(serial_number, cur_dev->serial_number) == 0) {
+ path_to_open = cur_dev->path;
+ break;
+ }
+ }
+ else {
+ path_to_open = cur_dev->path;
+ break;
+ }
+ }
+ cur_dev = cur_dev->next;
+ }
+
+ if (path_to_open) {
+ /* Open the device */
+ handle = hid_open_path(path_to_open);
+ }
+
+ hid_free_enumeration(devs);
+
+ return handle;
+}
+
+HID_API_EXPORT hid_device * HID_API_CALL hid_open_path(const char *path)
+{
+ hid_device *dev;
+ HIDP_CAPS caps;
+ PHIDP_PREPARSED_DATA pp_data = NULL;
+ BOOLEAN res;
+ NTSTATUS nt_res;
+
+ if (hid_init() < 0) {
+ return NULL;
+ }
+
+ dev = new_hid_device();
+
+ /* Open a handle to the device */
+ dev->device_handle = open_device(path, FALSE);
+
+ /* Check validity of write_handle. */
+ if (dev->device_handle == INVALID_HANDLE_VALUE) {
+ /* Unable to open the device. */
+ register_error(dev, "CreateFile");
+ goto err;
+ }
+
+ /* Get the Input Report length for the device. */
+ res = HidD_GetPreparsedData(dev->device_handle, &pp_data);
+ if (!res) {
+ register_error(dev, "HidD_GetPreparsedData");
+ goto err;
+ }
+ nt_res = HidP_GetCaps(pp_data, &caps);
+ if (nt_res != HIDP_STATUS_SUCCESS) {
+ register_error(dev, "HidP_GetCaps");
+ goto err_pp_data;
+ }
+ dev->output_report_length = caps.OutputReportByteLength;
+ dev->input_report_length = caps.InputReportByteLength;
+ HidD_FreePreparsedData(pp_data);
+
+ dev->read_buf = (char*) malloc(dev->input_report_length);
+
+ return dev;
+
+err_pp_data:
+ HidD_FreePreparsedData(pp_data);
+err:
+ free_hid_device(dev);
+ return NULL;
+}
+
+int HID_API_EXPORT HID_API_CALL hid_write(hid_device *dev, const unsigned char *data, size_t length)
+{
+ DWORD bytes_written;
+ BOOL res;
+
+ OVERLAPPED ol;
+ unsigned char *buf;
+ memset(&ol, 0, sizeof(ol));
+
+ /* Make sure the right number of bytes are passed to WriteFile. Windows
+ expects the number of bytes which are in the _longest_ report (plus
+ one for the report number) bytes even if the data is a report
+ which is shorter than that. Windows gives us this value in
+ caps.OutputReportByteLength. If a user passes in fewer bytes than this,
+ create a temporary buffer which is the proper size. */
+ if (length >= dev->output_report_length) {
+ /* The user passed the right number of bytes. Use the buffer as-is. */
+ buf = (unsigned char *) data;
+ } else {
+ /* Create a temporary buffer and copy the user's data
+ into it, padding the rest with zeros. */
+ buf = (unsigned char *) malloc(dev->output_report_length);
+ memcpy(buf, data, length);
+ memset(buf + length, 0, dev->output_report_length - length);
+ length = dev->output_report_length;
+ }
+
+ res = WriteFile(dev->device_handle, buf, length, NULL, &ol);
+
+ if (!res) {
+ if (GetLastError() != ERROR_IO_PENDING) {
+ /* WriteFile() failed. Return error. */
+ register_error(dev, "WriteFile");
+ bytes_written = -1;
+ goto end_of_function;
+ }
+ }
+
+ /* Wait here until the write is done. This makes
+ hid_write() synchronous. */
+ res = GetOverlappedResult(dev->device_handle, &ol, &bytes_written, TRUE/*wait*/);
+ if (!res) {
+ /* The Write operation failed. */
+ register_error(dev, "WriteFile");
+ bytes_written = -1;
+ goto end_of_function;
+ }
+
+end_of_function:
+ if (buf != data)
+ free(buf);
+
+ return bytes_written;
+}
+
+
+int HID_API_EXPORT HID_API_CALL hid_read_timeout(hid_device *dev, unsigned char *data, size_t length, int milliseconds)
+{
+ DWORD bytes_read = 0;
+ BOOL res;
+
+ /* Copy the handle for convenience. */
+ HANDLE ev = dev->ol.hEvent;
+
+ if (!dev->read_pending) {
+ /* Start an Overlapped I/O read. */
+ dev->read_pending = TRUE;
+ memset(dev->read_buf, 0, dev->input_report_length);
+ ResetEvent(ev);
+ res = ReadFile(dev->device_handle, dev->read_buf, dev->input_report_length, &bytes_read, &dev->ol);
+
+ if (!res) {
+ if (GetLastError() != ERROR_IO_PENDING) {
+ /* ReadFile() has failed.
+ Clean up and return error. */
+ CancelIo(dev->device_handle);
+ dev->read_pending = FALSE;
+ goto end_of_function;
+ }
+ }
+ }
+
+ if (milliseconds >= 0) {
+ /* See if there is any data yet. */
+ res = WaitForSingleObject(ev, milliseconds);
+ if (res != WAIT_OBJECT_0) {
+ /* There was no data this time. Return zero bytes available,
+ but leave the Overlapped I/O running. */
+ return 0;
+ }
+ }
+
+ /* Either WaitForSingleObject() told us that ReadFile has completed, or
+ we are in non-blocking mode. Get the number of bytes read. The actual
+ data has been copied to the data[] array which was passed to ReadFile(). */
+ res = GetOverlappedResult(dev->device_handle, &dev->ol, &bytes_read, TRUE/*wait*/);
+
+ /* Set pending back to false, even if GetOverlappedResult() returned error. */
+ dev->read_pending = FALSE;
+
+ if (res && bytes_read > 0) {
+ if (dev->read_buf[0] == 0x0) {
+ /* If report numbers aren't being used, but Windows sticks a report
+ number (0x0) on the beginning of the report anyway. To make this
+ work like the other platforms, and to make it work more like the
+ HID spec, we'll skip over this byte. */
+ size_t copy_len;
+ bytes_read--;
+ copy_len = length > bytes_read ? bytes_read : length;
+ memcpy(data, dev->read_buf+1, copy_len);
+ }
+ else {
+ /* Copy the whole buffer, report number and all. */
+ size_t copy_len = length > bytes_read ? bytes_read : length;
+ memcpy(data, dev->read_buf, copy_len);
+ }
+ }
+
+end_of_function:
+ if (!res) {
+ register_error(dev, "GetOverlappedResult");
+ return -1;
+ }
+
+ return bytes_read;
+}
+
+int HID_API_EXPORT HID_API_CALL hid_read(hid_device *dev, unsigned char *data, size_t length)
+{
+ return hid_read_timeout(dev, data, length, (dev->blocking)? -1: 0);
+}
+
+int HID_API_EXPORT HID_API_CALL hid_set_nonblocking(hid_device *dev, int nonblock)
+{
+ dev->blocking = !nonblock;
+ return 0; /* Success */
+}
+
+int HID_API_EXPORT HID_API_CALL hid_send_feature_report(hid_device *dev, const unsigned char *data, size_t length)
+{
+ BOOL res = HidD_SetFeature(dev->device_handle, (PVOID)data, length);
+ if (!res) {
+ register_error(dev, "HidD_SetFeature");
+ return -1;
+ }
+
+ return length;
+}
+
+
+int HID_API_EXPORT HID_API_CALL hid_get_feature_report(hid_device *dev, unsigned char *data, size_t length)
+{
+ BOOL res;
+#if 0
+ res = HidD_GetFeature(dev->device_handle, data, length);
+ if (!res) {
+ register_error(dev, "HidD_GetFeature");
+ return -1;
+ }
+ return 0; /* HidD_GetFeature() doesn't give us an actual length, unfortunately */
+#else
+ DWORD bytes_returned;
+
+ OVERLAPPED ol;
+ memset(&ol, 0, sizeof(ol));
+
+ res = DeviceIoControl(dev->device_handle,
+ IOCTL_HID_GET_FEATURE,
+ data, length,
+ data, length,
+ &bytes_returned, &ol);
+
+ if (!res) {
+ if (GetLastError() != ERROR_IO_PENDING) {
+ /* DeviceIoControl() failed. Return error. */
+ register_error(dev, "Send Feature Report DeviceIoControl");
+ return -1;
+ }
+ }
+
+ /* Wait here until the write is done. This makes
+ hid_get_feature_report() synchronous. */
+ res = GetOverlappedResult(dev->device_handle, &ol, &bytes_returned, TRUE/*wait*/);
+ if (!res) {
+ /* The operation failed. */
+ register_error(dev, "Send Feature Report GetOverLappedResult");
+ return -1;
+ }
+ return bytes_returned;
+#endif
+}
+
+void HID_API_EXPORT HID_API_CALL hid_close(hid_device *dev)
+{
+ if (!dev)
+ return;
+ CancelIo(dev->device_handle);
+ free_hid_device(dev);
+}
+
+int HID_API_EXPORT_CALL HID_API_CALL hid_get_manufacturer_string(hid_device *dev, wchar_t *string, size_t maxlen)
+{
+ BOOL res;
+
+ res = HidD_GetManufacturerString(dev->device_handle, string, sizeof(wchar_t) * maxlen);
+ if (!res) {
+ register_error(dev, "HidD_GetManufacturerString");
+ return -1;
+ }
+
+ return 0;
+}
+
+int HID_API_EXPORT_CALL HID_API_CALL hid_get_product_string(hid_device *dev, wchar_t *string, size_t maxlen)
+{
+ BOOL res;
+
+ res = HidD_GetProductString(dev->device_handle, string, sizeof(wchar_t) * maxlen);
+ if (!res) {
+ register_error(dev, "HidD_GetProductString");
+ return -1;
+ }
+
+ return 0;
+}
+
+int HID_API_EXPORT_CALL HID_API_CALL hid_get_serial_number_string(hid_device *dev, wchar_t *string, size_t maxlen)
+{
+ BOOL res;
+
+ res = HidD_GetSerialNumberString(dev->device_handle, string, sizeof(wchar_t) * maxlen);
+ if (!res) {
+ register_error(dev, "HidD_GetSerialNumberString");
+ return -1;
+ }
+
+ return 0;
+}
+
+int HID_API_EXPORT_CALL HID_API_CALL hid_get_indexed_string(hid_device *dev, int string_index, wchar_t *string, size_t maxlen)
+{
+ BOOL res;
+
+ res = HidD_GetIndexedString(dev->device_handle, string_index, string, sizeof(wchar_t) * maxlen);
+ if (!res) {
+ register_error(dev, "HidD_GetIndexedString");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+HID_API_EXPORT const wchar_t * HID_API_CALL hid_error(hid_device *dev)
+{
+ return (wchar_t*)dev->last_error_str;
+}
+
+
+/*#define PICPGM*/
+/*#define S11*/
+#define P32
+#ifdef S11
+ unsigned short VendorID = 0xa0a0;
+ unsigned short ProductID = 0x0001;
+#endif
+
+#ifdef P32
+ unsigned short VendorID = 0x04d8;
+ unsigned short ProductID = 0x3f;
+#endif
+
+
+#ifdef PICPGM
+ unsigned short VendorID = 0x04d8;
+ unsigned short ProductID = 0x0033;
+#endif
+
+
+#if 0
+int __cdecl main(int argc, char* argv[])
+{
+ int res;
+ unsigned char buf[65];
+
+ UNREFERENCED_PARAMETER(argc);
+ UNREFERENCED_PARAMETER(argv);
+
+ /* Set up the command buffer. */
+ memset(buf,0x00,sizeof(buf));
+ buf[0] = 0;
+ buf[1] = 0x81;
+
+
+ /* Open the device. */
+ int handle = open(VendorID, ProductID, L"12345");
+ if (handle < 0)
+ printf("unable to open device\n");
+
+
+ /* Toggle LED (cmd 0x80) */
+ buf[1] = 0x80;
+ res = write(handle, buf, 65);
+ if (res < 0)
+ printf("Unable to write()\n");
+
+ /* Request state (cmd 0x81) */
+ buf[1] = 0x81;
+ write(handle, buf, 65);
+ if (res < 0)
+ printf("Unable to write() (2)\n");
+
+ /* Read requested state */
+ read(handle, buf, 65);
+ if (res < 0)
+ printf("Unable to read()\n");
+
+ /* Print out the returned buffer. */
+ for (int i = 0; i < 4; i++)
+ printf("buf[%d]: %d\n", i, buf[i]);
+
+ return 0;
+}
+#endif
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
diff --git a/vendor/github.com/GeertJohan/go.hid/hidapi.h b/vendor/github.com/GeertJohan/go.hid/hidapi.h
new file mode 100644
index 0000000..5730f86
--- /dev/null
+++ b/vendor/github.com/GeertJohan/go.hid/hidapi.h
@@ -0,0 +1,387 @@
+/*******************************************************
+ HIDAPI - Multi-Platform library for
+ communication with HID devices.
+
+ Alan Ott
+ Signal 11 Software
+
+ 8/22/2009
+
+ Copyright 2009, All Rights Reserved.
+
+ At the discretion of the user of this library,
+ this software may be licensed under the terms of the
+ GNU General Public License v3, a BSD-Style license, or the
+ original HIDAPI license as outlined in the LICENSE.txt,
+ LICENSE-gpl3.txt, LICENSE-bsd.txt, and LICENSE-orig.txt
+ files located at the root of the source distribution.
+ These files may also be found in the public source
+ code repository located at:
+ http://github.com/signal11/hidapi .
+********************************************************/
+
+/** @file
+ * @defgroup API hidapi API
+ */
+
+#ifndef HIDAPI_H__
+#define HIDAPI_H__
+
+#include <wchar.h>
+
+#ifdef _WIN32
+ #define HID_API_EXPORT __declspec(dllexport)
+ #define HID_API_CALL
+#else
+ #define HID_API_EXPORT /**< API export macro */
+ #define HID_API_CALL /**< API call macro */
+#endif
+
+#define HID_API_EXPORT_CALL HID_API_EXPORT HID_API_CALL /**< API export and call macro*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ struct hid_device_;
+ typedef struct hid_device_ hid_device; /**< opaque hidapi structure */
+
+ /** hidapi info structure */
+ struct hid_device_info {
+ /** Platform-specific device path */
+ char *path;
+ /** Device Vendor ID */
+ unsigned short vendor_id;
+ /** Device Product ID */
+ unsigned short product_id;
+ /** Serial Number */
+ wchar_t *serial_number;
+ /** Device Release Number in binary-coded decimal,
+ also known as Device Version Number */
+ unsigned short release_number;
+ /** Manufacturer String */
+ wchar_t *manufacturer_string;
+ /** Product string */
+ wchar_t *product_string;
+ /** Usage Page for this Device/Interface
+ (Windows/Mac only). */
+ unsigned short usage_page;
+ /** Usage for this Device/Interface
+ (Windows/Mac only).*/
+ unsigned short usage;
+ /** The USB interface which this logical device
+ represents. Valid on both Linux implementations
+ in all cases, and valid on the Windows implementation
+ only if the device contains more than one interface. */
+ int interface_number;
+
+ /** Pointer to the next device */
+ struct hid_device_info *next;
+ };
+
+
+ /** @brief Initialize the HIDAPI library.
+
+ This function initializes the HIDAPI library. Calling it is not
+ strictly necessary, as it will be called automatically by
+ hid_enumerate() and any of the hid_open_*() functions if it is
+ needed. This function should be called at the beginning of
+ execution however, if there is a chance of HIDAPI handles
+ being opened by different threads simultaneously.
+
+ @ingroup API
+
+ @returns
+ This function returns 0 on success and -1 on error.
+ */
+ int HID_API_EXPORT HID_API_CALL hid_init(void);
+
+ /** @brief Finalize the HIDAPI library.
+
+ This function frees all of the static data associated with
+ HIDAPI. It should be called at the end of execution to avoid
+ memory leaks.
+
+ @ingroup API
+
+ @returns
+ This function returns 0 on success and -1 on error.
+ */
+ int HID_API_EXPORT HID_API_CALL hid_exit(void);
+
+ /** @brief Enumerate the HID Devices.
+
+ This function returns a linked list of all the HID devices
+ attached to the system which match vendor_id and product_id.
+ If @p vendor_id is set to 0 then any vendor matches.
+ If @p product_id is set to 0 then any product matches.
+ If @p vendor_id and @p product_id are both set to 0, then
+ all HID devices will be returned.
+
+ @ingroup API
+ @param vendor_id The Vendor ID (VID) of the types of device
+ to open.
+ @param product_id The Product ID (PID) of the types of
+ device to open.
+
+ @returns
+ This function returns a pointer to a linked list of type
+ struct #hid_device, containing information about the HID devices
+ attached to the system, or NULL in the case of failure. Free
+ this linked list by calling hid_free_enumeration().
+ */
+ struct hid_device_info HID_API_EXPORT * HID_API_CALL hid_enumerate(unsigned short vendor_id, unsigned short product_id);
+
+ /** @brief Free an enumeration Linked List
+
+ This function frees a linked list created by hid_enumerate().
+
+ @ingroup API
+ @param devs Pointer to a list of struct_device returned from
+ hid_enumerate().
+ */
+ void HID_API_EXPORT HID_API_CALL hid_free_enumeration(struct hid_device_info *devs);
+
+ /** @brief Open a HID device using a Vendor ID (VID), Product ID
+ (PID) and optionally a serial number.
+
+ If @p serial_number is NULL, the first device with the
+ specified VID and PID is opened.
+
+ @ingroup API
+ @param vendor_id The Vendor ID (VID) of the device to open.
+ @param product_id The Product ID (PID) of the device to open.
+ @param serial_number The Serial Number of the device to open
+ (Optionally NULL).
+
+ @returns
+ This function returns a pointer to a #hid_device object on
+ success or NULL on failure.
+ */
+ HID_API_EXPORT hid_device * HID_API_CALL hid_open(unsigned short vendor_id, unsigned short product_id, const wchar_t *serial_number);
+
+ /** @brief Open a HID device by its path name.
+
+ The path name be determined by calling hid_enumerate(), or a
+ platform-specific path name can be used (eg: /dev/hidraw0 on
+ Linux).
+
+ @ingroup API
+ @param path The path name of the device to open
+
+ @returns
+ This function returns a pointer to a #hid_device object on
+ success or NULL on failure.
+ */
+ HID_API_EXPORT hid_device * HID_API_CALL hid_open_path(const char *path);
+
+ /** @brief Write an Output report to a HID device.
+
+ The first byte of @p data[] must contain the Report ID. For
+ devices which only support a single report, this must be set
+ to 0x0. The remaining bytes contain the report data. Since
+ the Report ID is mandatory, calls to hid_write() will always
+ contain one more byte than the report contains. For example,
+ if a hid report is 16 bytes long, 17 bytes must be passed to
+ hid_write(), the Report ID (or 0x0, for devices with a
+ single report), followed by the report data (16 bytes). In
+ this example, the length passed in would be 17.
+
+ hid_write() will send the data on the first OUT endpoint, if
+ one exists. If it does not, it will send the data through
+ the Control Endpoint (Endpoint 0).
+
+ @ingroup API
+ @param device A device handle returned from hid_open().
+ @param data The data to send, including the report number as
+ the first byte.
+ @param length The length in bytes of the data to send.
+
+ @returns
+ This function returns the actual number of bytes written and
+ -1 on error.
+ */
+ int HID_API_EXPORT HID_API_CALL hid_write(hid_device *device, const unsigned char *data, size_t length);
+
+ /** @brief Read an Input report from a HID device with timeout.
+
+ Input reports are returned
+ to the host through the INTERRUPT IN endpoint. The first byte will
+ contain the Report number if the device uses numbered reports.
+
+ @ingroup API
+ @param device A device handle returned from hid_open().
+ @param data A buffer to put the read data into.
+ @param length The number of bytes to read. For devices with
+ multiple reports, make sure to read an extra byte for
+ the report number.
+ @param milliseconds timeout in milliseconds or -1 for blocking wait.
+
+ @returns
+ This function returns the actual number of bytes read and
+ -1 on error. If no packet was available to be read within
+ the timeout period, this function returns 0.
+ */
+ int HID_API_EXPORT HID_API_CALL hid_read_timeout(hid_device *dev, unsigned char *data, size_t length, int milliseconds);
+
+ /** @brief Read an Input report from a HID device.
+
+ Input reports are returned
+ to the host through the INTERRUPT IN endpoint. The first byte will
+ contain the Report number if the device uses numbered reports.
+
+ @ingroup API
+ @param device A device handle returned from hid_open().
+ @param data A buffer to put the read data into.
+ @param length The number of bytes to read. For devices with
+ multiple reports, make sure to read an extra byte for
+ the report number.
+
+ @returns
+ This function returns the actual number of bytes read and
+ -1 on error. If no packet was available to be read and
+ the handle is in non-blocking mode, this function returns 0.
+ */
+ int HID_API_EXPORT HID_API_CALL hid_read(hid_device *device, unsigned char *data, size_t length);
+
+ /** @brief Set the device handle to be non-blocking.
+
+ In non-blocking mode calls to hid_read() will return
+ immediately with a value of 0 if there is no data to be
+ read. In blocking mode, hid_read() will wait (block) until
+ there is data to read before returning.
+
+ Nonblocking can be turned on and off at any time.
+
+ @ingroup API
+ @param device A device handle returned from hid_open().
+ @param nonblock enable or not the nonblocking reads
+ - 1 to enable nonblocking
+ - 0 to disable nonblocking.
+
+ @returns
+ This function returns 0 on success and -1 on error.
+ */
+ int HID_API_EXPORT HID_API_CALL hid_set_nonblocking(hid_device *device, int nonblock);
+
+ /** @brief Send a Feature report to the device.
+
+ Feature reports are sent over the Control endpoint as a
+ Set_Report transfer. The first byte of @p data[] must
+ contain the Report ID. For devices which only support a
+ single report, this must be set to 0x0. The remaining bytes
+ contain the report data. Since the Report ID is mandatory,
+ calls to hid_send_feature_report() will always contain one
+ more byte than the report contains. For example, if a hid
+ report is 16 bytes long, 17 bytes must be passed to
+ hid_send_feature_report(): the Report ID (or 0x0, for
+ devices which do not use numbered reports), followed by the
+ report data (16 bytes). In this example, the length passed
+ in would be 17.
+
+ @ingroup API
+ @param device A device handle returned from hid_open().
+ @param data The data to send, including the report number as
+ the first byte.
+ @param length The length in bytes of the data to send, including
+ the report number.
+
+ @returns
+ This function returns the actual number of bytes written and
+ -1 on error.
+ */
+ int HID_API_EXPORT HID_API_CALL hid_send_feature_report(hid_device *device, const unsigned char *data, size_t length);
+
+ /** @brief Get a feature report from a HID device.
+
+ Make sure to set the first byte of @p data[] to the Report
+ ID of the report to be read. Make sure to allow space for
+ this extra byte in @p data[].
+
+ @ingroup API
+ @param device A device handle returned from hid_open().
+ @param data A buffer to put the read data into, including
+ the Report ID. Set the first byte of @p data[] to the
+ Report ID of the report to be read.
+ @param length The number of bytes to read, including an
+ extra byte for the report ID. The buffer can be longer
+ than the actual report.
+
+ @returns
+ This function returns the number of bytes read and
+ -1 on error.
+ */
+ int HID_API_EXPORT HID_API_CALL hid_get_feature_report(hid_device *device, unsigned char *data, size_t length);
+
+ /** @brief Close a HID device.
+
+ @ingroup API
+ @param device A device handle returned from hid_open().
+ */
+ void HID_API_EXPORT HID_API_CALL hid_close(hid_device *device);
+
+ /** @brief Get The Manufacturer String from a HID device.
+
+ @ingroup API
+ @param device A device handle returned from hid_open().
+ @param string A wide string buffer to put the data into.
+ @param maxlen The length of the buffer in multiples of wchar_t.
+
+ @returns
+ This function returns 0 on success and -1 on error.
+ */
+ int HID_API_EXPORT_CALL hid_get_manufacturer_string(hid_device *device, wchar_t *string, size_t maxlen);
+
+ /** @brief Get The Product String from a HID device.
+
+ @ingroup API
+ @param device A device handle returned from hid_open().
+ @param string A wide string buffer to put the data into.
+ @param maxlen The length of the buffer in multiples of wchar_t.
+
+ @returns
+ This function returns 0 on success and -1 on error.
+ */
+ int HID_API_EXPORT_CALL hid_get_product_string(hid_device *device, wchar_t *string, size_t maxlen);
+
+ /** @brief Get The Serial Number String from a HID device.
+
+ @ingroup API
+ @param device A device handle returned from hid_open().
+ @param string A wide string buffer to put the data into.
+ @param maxlen The length of the buffer in multiples of wchar_t.
+
+ @returns
+ This function returns 0 on success and -1 on error.
+ */
+ int HID_API_EXPORT_CALL hid_get_serial_number_string(hid_device *device, wchar_t *string, size_t maxlen);
+
+ /** @brief Get a string from a HID device, based on its string index.
+
+ @ingroup API
+ @param device A device handle returned from hid_open().
+ @param string_index The index of the string to get.
+ @param string A wide string buffer to put the data into.
+ @param maxlen The length of the buffer in multiples of wchar_t.
+
+ @returns
+ This function returns 0 on success and -1 on error.
+ */
+ int HID_API_EXPORT_CALL hid_get_indexed_string(hid_device *device, int string_index, wchar_t *string, size_t maxlen);
+
+ /** @brief Get a string describing the last error which occurred.
+
+ @ingroup API
+ @param device A device handle returned from hid_open().
+
+ @returns
+ This function returns a string containing the last error
+ which occurred or NULL if none has occurred.
+ */
+ HID_API_EXPORT const wchar_t* HID_API_CALL hid_error(hid_device *device);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/vendor/github.com/GeertJohan/go.hid/readme.md b/vendor/github.com/GeertJohan/go.hid/readme.md
new file mode 100644
index 0000000..994d43e
--- /dev/null
+++ b/vendor/github.com/GeertJohan/go.hid/readme.md
@@ -0,0 +1,104 @@
+
+**This package is discontinued**
+This package does not work with Go1.6+. I won't be updating this package since a better alternative is already available, please take a look at [karalabe/hid](https://github.com/karalabe/hid).
+
+
+## go.hid
+This [go](http://golang.org) package wraps the [signal11/hidapi](https://github.com/signal11/hidapi) and provides communication with USB Human Interface Devices.
+
+**This package is not completely tested yet!**
+
+### Installation:
+This project depends on libhidapi, which must be installed manually.
+```shell
+git clone git@github.com:signal11/hidapi.git
+cd hidapi
+./bootstrap
+./configure
+```
+
+Now change directory depending on your OS.
+
+For linux + hidraw: `cd linux`. (requires libudev. Package libudev-dev on debian/ubuntu.)
+
+For linux + libusb: `cd libusb`. (requires libusb. Package libusb-1.0-0-dev on debian/ubuntu.)
+
+For mac: `cd mac`.
+
+For windows: `cd windows`.
+
+Make and install.
+For linux/mac:
+```
+make
+sudo make install
+```
+For windows:
+```
+run some wizzard, probably.. (PR on readme is very welcome)
+```
+
+Lastly, for linux only:
+Create a symlink pointing libhidapi.so to the version you chose:
+
+For linux + hidraw: `cd /usr/local/lib; sudo ln -s libhidapi-hidraw.so libhidapi.so`
+
+For linux + libusb: `cd /usr/local/lib; sudo ln -s libhidapi-libusb.so libhidapi.so`
+
+For more instructions on libhidapi, please visit [signal11/hidapi](https://github.com/signal11/hidapi).
+
+When you have installed hidapi lib, install this package with `go get github.com/GeertJohan/go.hid`.
+
+### Documentation:
+[godoc.org/github.com/GeertJohan/go.hid](https://godoc.org/github.com/GeertJohan/go.hid)
+
+### Example:
+This is a simple example on how to use feature reports. For a working example view [GeertJohan/mgl](https://github.com/GeertJohan/mgl).
+```go
+package main
+
+import(
+ "log"
+ "github.com/GeertJohan/go.hid"
+)
+
+func main() {
+ // open the MSI GT leds device
+ leds, err := hid.Open(0x1770, 0xff00, "")
+ if err != nil {
+ log.Fatalf("Could not open leds device: %s", err)
+ }
+ defer leds.Close()
+
+ // create a feature report. This is always 8*n+1 bytes long, where n is >1.
+ data := make([]byte, 9)
+ data[0] = 0x42 // report ID
+ data[1] = 0x00 // dummy data
+ data[2] = 0x01 // dummy data
+ data[3] = 0x02 // dummy data
+ data[4] = 0x03 // dummy data
+ data[5] = 0x04 // dummy data
+ data[6] = 0x05 // dummy data
+ data[7] = 0x06 // dummy data
+ data[8] = 0x07 // dummy data
+
+ _, err := leds.SendFeatureReport(data)
+ if err != nil {
+ log.Fatalf("Could not send feature report to do dummy action. %s\n", err)
+ }
+}
+```
+
+### License:
+The go code in this project is licenced under a a Simplified BSD license. Please read the [LICENSE file](LICENSE).
+
+### TODO:
+At this point, the package works for linux with hidraw.
+hidapi itself is already cross-platform, so making this package work cross-platform shouldn't be a lot of work.
+- Make this package work cross-platform.
+- Add better support for hidapi init() and exit(). (At this time hidapi's init() is called once on first Open() call)
+- Add tests (find if there is a usb-hid dummy device that has expected input/output and works consistently within an OS (we can write a test file for each OS seperated))
+- Better example (preferably with a dummy test device)
+
+### History:
+I started this project to be able to communicate with the MSI leds device in the MSI GT780DX laptop. For more information about that project, visit [GeertJohan/mgl](https://github.com/GeertJohan/mgl).