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Diffstat (limited to 'vendor/github.com/kylelemons/gousb/usb/debug.go')
-rw-r--r--vendor/github.com/kylelemons/gousb/usb/debug.go37
1 files changed, 37 insertions, 0 deletions
diff --git a/vendor/github.com/kylelemons/gousb/usb/debug.go b/vendor/github.com/kylelemons/gousb/usb/debug.go
new file mode 100644
index 0000000..c3e061d
--- /dev/null
+++ b/vendor/github.com/kylelemons/gousb/usb/debug.go
@@ -0,0 +1,37 @@
+// Copyright 2013 Google Inc. All rights reserved.
+// Copyright 2016 the gousb Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package usb
+
+// To enable internal debugging:
+// -ldflags "-X github.com/kylelemons/gousb/usb.debugInternal true"
+
+import (
+ "io"
+ "io/ioutil"
+ "log" // TODO(kevlar): make a logger
+ "os"
+)
+
+var debug *log.Logger
+var debugInternal string
+
+func init() {
+ var out io.Writer = ioutil.Discard
+ if debugInternal != "" {
+ out = os.Stderr
+ }
+ debug = log.New(out, "usb", log.LstdFlags|log.Lshortfile)
+}