Not work (Program itself:package main
import(
"flag"
"fmt"
"os"
)
func main() {
var color = flag.Int("color", 0x00000000, "Color value")
flag.Parse()
var hexColor uint32 = uint32(*color)
var rgb [3]byte;
rgb[2] = byte(hexColor & 0x000000ff)
rgb[1] = byte((hexColor & 0x0000ff00) >> 8)
rgb[0] = byte((hexColor & 0x00ff0000) >> 16)
usbControl, controlErr := os.Open("/dev/eiaU5/eiaUctl")
if controlErr != nil {
fmt.Println(controlErr)
os.Exit(1)
}
defer usbControl.Close()
usbControl.WriteString("b9600")
usbControl.Sync()
usbFile, usbErr := os.Open("/dev/eiaU5/eiaU")
if usbErr != nil {
fmt.Println(usbErr)
os.Exit(1)
}
defer usbFile.Close()
fmt.Print(rgb[0])
fmt.Print(rgb[1])
fmt.Print(rgb[2])
usbFile.Write(rgb[:])
}2018-08-16 14:26 GMT+03:00 Richard Miller <9fans@hamnavoe.com>:> I encountered some problem: there is a trivial program on Go that
> writes to the files / dev / eiaU4 / eiaUctl and / dev / eiaU the
I hope you meant /dev/eiaU4/eiaU, not /dev/eiaU
Unless you do a "bind -a /dev/eiaU4 /dev" after starting the usb
serial driver, which allows you to reference the device files
as /dev/eiaUctl and /dev/eiaU and not have to remember the unit number.