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device.go
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device.go
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package goluxafor
import (
"github.com/google/gousb"
"log"
)
type Device struct {
Desc *gousb.DeviceDesc
device *gousb.Device
intf *gousb.Interface
endpoint *gousb.OutEndpoint
}
const vendorId = gousb.ID(0x4d8) // Microchip Technology Inc.
const productId = gousb.ID(0xf372) // LUXAFOR FLAG
type Led byte
const (
LedAll Led = 0xff
LedA Led = 0x41
LedB Led = 0x42
Led1 Led = 0x01
Led2 Led = 0x02
Led3 Led = 0x03
Led4 Led = 0x04
Led5 Led = 0x05
Led6 Led = 0x06
)
type Wave byte
const (
Wave1 Wave = 0x01
Wave2 Wave = 0x02
Wave3 Wave = 0x03
Wave4 Wave = 0x04
Wave5 Wave = 0x05
)
type Pattern byte
const (
Pattern1 Pattern = 0x01
Pattern2 Pattern = 0x02
Pattern3 Pattern = 0x03
Pattern4 Pattern = 0x04
Pattern5 Pattern = 0x05
Pattern6 Pattern = 0x06
Pattern7 Pattern = 0x07
Pattern8 Pattern = 0x08
)
func newDevice(dev *gousb.Device) *Device {
intf, _, err := dev.DefaultInterface()
if err != nil {
log.Fatalf("%s.DefaultInterface(): %v", dev, err)
}
ep, err := intf.OutEndpoint(1)
if err != nil {
log.Fatalf("%s.OutEndpoint(1): %v", intf, err)
}
return &Device{
Desc: dev.Desc,
device: dev,
intf: intf,
endpoint: ep,
}
}
func (device *Device) Close() {
device.intf.Close()
device.device.Close()
}
func (device *Device) writeCommand(command []byte) error {
_, err := device.endpoint.Write(command)
if err != nil {
log.Printf("Error writing data: %s", err)
}
return err
}
func (device *Device) Color(led Led, red uint8, green uint8, blue uint8, fadeTime uint8) error {
data := []byte{0x01, byte(led), red, green, blue, fadeTime, 0x0, 0x0}
if fadeTime > 0 {
data[1] = 0x02
}
return device.writeCommand(data)
}
func (device *Device) Strobe(led Led, red uint8, green uint8, blue uint8, speed uint8, repeat uint8) error {
data := []byte{0x03, byte(led), red, green, blue, speed, 0x0, repeat}
return device.writeCommand(data)
}
func (device *Device) Wave(wave Wave, red uint8, green uint8, blue uint8, speed uint8, repeat uint8) error {
data := []byte{0x04, byte(wave), red, green, blue, 0x0, repeat, speed}
return device.writeCommand(data)
}
func (device *Device) Pattern(pattern Pattern, repeat uint8) error {
data := []byte{0x06, byte(pattern), repeat, 0x0, 0x0, 0x0, 0x0, 0x0}
return device.writeCommand(data)
}