Communication error about pslab-android HOT 6 CLOSED

<intent-filter>
        <action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
    </intent-filter>

private static final String ACTION_USB_PERMISSION = "com.android.example.USB_PERMISSION";
private PendingIntent mPermissionIntent;
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main_menu);
		
		setTitle("ExpEYES Experiments ( Connect... )");
		
 		mPermissionIntent = PendingIntent.getBroadcast(this, 0, new Intent(ACTION_USB_PERMISSION), 0);
		filter = new IntentFilter(ACTION_USB_PERMISSION);
		registerReceiver(mUsbReceiver, filter);
        
        mUsbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
        mcp2200 = new devhandler(mUsbManager);
        
        if(mcp2200.device_found )mUsbManager.requestPermission(mcp2200.mDevice, mPermissionIntent);
        else Toast.makeText(getBaseContext(),"No device connected. check connections.",Toast.LENGTH_SHORT).show();
        ej=expeyesCommon.getInstance();
        
        
        
	}

/*---------------------REQUEST USB PERMISSION WITHIN THE APPLICATION--------------------------*/