protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
				new Thread(new Runnable() {
					public void run() {
						UsbDevice myDev = null;
						UsbManager manager = (UsbManager) getSystemService(Context.USB_SERVICE);
						HashMap<String, UsbDevice> deviceList = manager.getDeviceList();
						Iterator<UsbDevice> deviceIterator = deviceList.values().iterator();
						while (deviceIterator.hasNext()) {
							UsbDevice dev = deviceIterator.next();
							if (dev.getProductId() == 24897 && dev.getVendorId() == 1105)
								myDev = dev;
							if (dev.getProductId() == 42146 && dev.getVendorId() == 1317)
								myDev = dev;
						}
						if(myDev == null)return;
						UsbInterface intf = myDev.getInterface(1);
						UsbEndpoint endpoint = intf.getEndpoint(0);
						UsbDeviceConnection connection = null;
						if(manager.hasPermission(myDev)) {
							connection = manager.openDevice(myDev);
						}
						else Log.d(TAG, "no permissions");
						connection.claimInterface(intf, true);
						byte[] buffer = new byte[500];
						int tmp = connection.bulkTransfer(endpoint, buffer, 500, 10);
						while(tmp <0) tmp = connection.bulkTransfer(endpoint, buffer, 500, 10);
						Log.d(TAG, "Received " + tmp + ".");

					}
				}).start();

	}