inThread.start();
	public void open() {		inThread.start(); /* start listening on the OS midi device to get MidiMessages */					File file = new java.io.File(devicePath);		try {			/* TODO(if possible)! check if device file isn't occupied by an other process */			inStream  = new FileInputStream (file);			outStream = new FileOutputStream(file);			if ( inStream != null && outStream != null  ) open = true;		} catch (Exception e) {			System.out.println("LinuxCharDevMidiDevice.open(): Exception: "+e);			e.printStackTrace();		}	}