BroadcastReceiver mUsbReceiver = new BroadcastReceiver() {
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();

            Log.d(TAG, " onReceive " + action );

            if (UsbManager.ACTION_USB_DEVICE_ATTACHED.equals(action)) {
                UsbDevice device = (UsbDevice)intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
                UsbInterface intf = findAdbInterface(device);
                if (intf != null) {
                    log("Found adb interface " + intf);
                    Log.d(TAG, "Found adb interface " + intf);
                    setAdbInterface(device, intf);
                }
            } else if (UsbManager.ACTION_USB_DEVICE_DETACHED.equals(action)) {
                UsbDevice device = intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
                String deviceName = device.getDeviceName();
                if (mDevice != null && mDevice.equals(deviceName)) {
                    log("adb interface removed");
                    Log.d(TAG, "adb removed interface " );
                    setAdbInterface(null, null);
                }
            }
        }
    };