createFromDeviceId method
Creates a UsbPort from deviceId optionally type and interface. throws an error on failure. This function will pop up a permission request if needed. Note deviceId is only valid for the duration of a device being plugged in. Once unplugged and replugged this id changes.
type
= One of UserSerial.CDC
, UsbSerial.CH34x, UsbSerial.CP210x, UsbSerial.FTDI, UsbSerial.PL2303 or empty for auto detect.
interface
= Interface of the Usb Interface, -1 for auto detect.
Implementation
static Future<UsbPort> createFromDeviceId(int deviceId,
[String type = "", int interface = -1]) async {
String methodChannelName = await _channel.invokeMethod("create", {
"type": type,
"vid": -1,
"pid": -1,
"deviceId": deviceId,
"interface": interface
});
if (methodChannelName == null) {
return null;
}
return new UsbPort(methodChannelName);
}