// hid - Gopher Interface Devices (USB HID) // Copyright (c) 2017 Péter Szilágyi. All rights reserved. // // This file is released under the 3-clause BSD license. Note however that Linux // support depends on libusb, released under GNU LGPL 2.1 or later. // +build !linux,!darwin,!windows ios !cgo package hid // Supported returns whether this platform is supported by the HID library or not. // The goal of this method is to allow programatically handling platforms that do // not support USB HID and not having to fall back to build constraints. func Supported() bool { return false } // Enumerate returns a list of all the HID devices attached to the system which // match the vendor and product id. On platforms that this file implements the // function is a noop and returns an empty list always. func Enumerate(vendorID uint16, productID uint16) []DeviceInfo { return nil } // Device is a live HID USB connected device handle. On platforms that this file // implements the type lacks the actual HID device and all methods are noop. type Device struct { DeviceInfo // Embed the infos for easier access } // Open connects to an HID device by its path name. On platforms that this file // implements the method just returns an error. func (info DeviceInfo) Open() (*Device, error) { return nil, ErrUnsupportedPlatform } // Close releases the HID USB device handle. On platforms that this file implements // the method is just a noop. func (dev *Device) Close() {} // Write sends an output report to a HID device. On platforms that this file // implements the method just returns an error. func (dev *Device) Write(b []byte) (int, error) { return 0, ErrUnsupportedPlatform } // Read retrieves an input report from a HID device. On platforms that this file // implements the method just returns an error. func (dev *Device) Read(b []byte) (int, error) { return 0, ErrUnsupportedPlatform }