Function Correct24CharacterSerial

screencapture/discovery.go:241–247

Usually iosDevices have a 40 character USB serial which equals the usbSerial used in usbmuxd, Xcode etc. There is an exception, some devices like the Xr and Xs have a 24 character USB serial. Usbmux, Xcode etc. however insert a dash after the 8th character in this case. To be compatible with other M

(usbSerial string)

//however insert a dash after the 8th character in this case. To be compatible with other MacOS X and iOS tools,
//we insert the dash here as well.
func Correct24CharacterSerial(usbSerial string) string {
	usbSerial = strings.Trim(usbSerial, "\x00")
	if len(usbSerial) == 24 {
		return fmt.Sprintf("%s-%s", usbSerial[0:8], usbSerial[8:])
	}
	return usbSerial
}

const sixteenTimesZero = "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"