UsbPort constructor
      
      UsbPort(
    
- String methodChannelName
Factory to create UsbPort object.
You don't need to use this directly as you get UsbPort from UsbDevice.create.
Implementation
factory UsbPort(String methodChannelName) {
  return UsbPort._internal(MethodChannel(methodChannelName),
      EventChannel("$methodChannelName/stream"));
}