Ejemplo n.º 1
0
    private void comm(Pointer<hid_device> device) {
      log.debug("starting comm loop");
      Pointer<Byte> data = Pointer.allocateBytes(1024);
      HidapiLibrary.hid_set_nonblocking(device, 1);
      while (loop && connected) {
        int result = HidapiLibrary.hid_read(device, data, 1024);
        if (result > 0) {
          byte bytes[] = data.getBytes(result);
          messageQueue.addAll(parse(result, bytes));
        }

        BpmMessage msg = writeQueue.poll();
        if (msg != null) {
          encode(msg, writeBuffer);
          try {
            HidapiLibrary.hid_write(device, Pointer.pointerToBytes(writeBuffer), 9);
          } finally {
            writeBuffer.rewind();
          }
        }
      }
    }
Ejemplo n.º 2
0
 public void run() {
   while (loop) {
     Pointer<hid_device> device = connect();
     if (device != null) {
       connected = true;
       try {
         comm(device);
       } catch (RuntimeException e) {
         log.error("Error communicating with device", e);
       } finally {
         HidapiLibrary.hid_close(device);
       }
     }
   }
 }
Ejemplo n.º 3
0
 private Pointer<hid_device> connect() {
   log.debug("connecting");
   Pointer<hid_device> device = null;
   while (device == null && loop == true) {
     device = HidapiLibrary.hid_open((short) 0x10b7, (short) 0x1234, null);
     if (device == null) {
       log.debug("no device found");
       try {
         Thread.sleep(1000);
       } catch (InterruptedException e) {
         throw new RuntimeException(e);
       }
     } else {
       log.debug("device found");
     }
   }
   return device;
 }