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hid.go
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hid.go
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// Copyright 2018 Shift Devices AG
//
// 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
import (
"encoding/hex"
"io"
"github.com/karalabe/hid"
)
type hidDeviceInfo struct {
hid.DeviceInfo
}
// VendorID implements DeviceInfo
func (info hidDeviceInfo) VendorID() int {
return int(info.DeviceInfo.VendorID)
}
// ProductID implements DeviceInfo
func (info hidDeviceInfo) ProductID() int {
return int(info.DeviceInfo.ProductID)
}
// UsagePage implements DeviceInfo
func (info hidDeviceInfo) UsagePage() int {
return int(info.DeviceInfo.UsagePage)
}
// Interface implements DeviceInfo
func (info hidDeviceInfo) Interface() int {
return info.DeviceInfo.Interface
}
// Serial implements DeviceInfo
func (info hidDeviceInfo) Serial() string {
return info.DeviceInfo.Serial
}
// Manufacturer implements DeviceInfo
func (info hidDeviceInfo) Manufacturer() string {
return info.DeviceInfo.Manufacturer
}
// Product implements DeviceInfo
func (info hidDeviceInfo) Product() string {
return info.DeviceInfo.Product
}
// Identifier implements DeviceInfo
func (info hidDeviceInfo) Identifier() string {
return hex.EncodeToString([]byte(info.DeviceInfo.Path))
}
// Open implements DeviceInfo
func (info hidDeviceInfo) Open() (io.ReadWriteCloser, error) {
device, err := info.DeviceInfo.Open()
if err != nil {
return nil, err
}
return device, nil
}
// DeviceInfos returns a slice of all recognized devices.
func DeviceInfos() []DeviceInfo {
deviceInfos := []DeviceInfo{}
for _, deviceInfo := range hid.Enumerate(0, 0) {
di := hidDeviceInfo{deviceInfo}
// If Enumerate() is called too quickly after a device is inserted, the HID device input
// report is not yet ready.
if di.Serial() == "" || di.Product() == "" {
continue
}
if isBitBox(di) || isBitBox02(di) || isBitBox02Bootloader(di) {
deviceInfos = append(deviceInfos, di)
}
}
return deviceInfos
}