What data (specific bytes) are you intending to send?
On Wed, Jul 9, 2008 at 4:14 AM, Marion Decrouez
<[EMAIL PROTECTED]> wrote:
> Hello,
> I'm still trying to send data to a HID device but it doesn't work. I
> don't have any errors or exceptions but the syncSubmit method never
> ends and if I use the asynchSubmit method, the actual lentgh is always
> null. I'm sure it's possible to send data to the device because
> there's a software given with the device which does that. I've checked
> the packets sent by this software to the device with an usb monitor
> and I tried to send the same.
> Does anyone knows the problem?
>
> Thanks.
>
> Here is my code :
>
> public static void main(String argv[]){
> try{
> UsbServices services = UsbHostManager.getUsbServices();
> UsbHub virtualRootUsbHub = services.getRootUsbHub();
> List LL_DevList =
> getUsbDevicesWithId(virtualRootUsbHub,
> (short)0x4242, (short)0xee01);
> UsbDevice LCl_Device = (UsbDevice)LL_DevList.get(0);
>
> UsbInterface LCl_UsbInterface =
> LCl_Device.getActiveUsbConfiguration().getUsbInterface((byte)0);
>
> UsbInterfacePolicy LCl_uiP = new UsbInterfacePolicy()
> {
> public boolean forceClaim (UsbInterface
> LCl_Interface)
> {
> return true;
> }
> };
>
>
> try
> {
> LCl_UsbInterface.claim(LCl_uiP);
> }catch(UsbException LCl_Exception){
> System.out.println("Could not claim interface
> to drive majook : "+
> LCl_Exception.getMessage());
> }
>
>
>
> UsbInterface LCl_UsbActiveInterface =
> LCl_UsbInterface.getActiveSetting();
>
> byte LN_EndpointOutAdress = (byte)0x04;
> UsbEndpoint LCl_UsbEndpointOut =
> LCl_UsbActiveInterface.getUsbEndpoint(LN_EndpointOutAdress);
>
> UsbPipe LCl_UsbPipeOut =
> LCl_UsbEndpointOut.getUsbPipe();
>
> try
> {
> LCl_UsbPipeOut.open();
> }catch (UsbException e){
> System.out.println("Could not open
> endpoint to communicate with
> majook : "+ e.getMessage());
>
> }
>
> byte[] LT_WriteData = new byte[64];
>
>
> for (int i=0; i< 64; i++)
> {
> LT_WriteData[i]=(byte)0x00;
> }
> LT_WriteData[1] = (byte)0x30;
>
> try
> {
>
> LCl_UsbPipeOut.syncSubmit(LT_WriteData);
>
>
> }catch(UsbException LCl_UsbException){
>
> System.out.println("Unable to submit
> data buffer to majook : " +
> LCl_UsbException.getMessage());
>
> }
> try
> {
> LCl_UsbPipeOut.abortAllSubmissions();
> LCl_UsbPipeOut.close();
> }catch (UsbException LCl_Exception){
> System.out.println("Could not open
> endpoint to communicate with
> majook : "+ LCl_Exception.getMessage())
> }
>
> }
> }catch(UsbException LCl_Exception){
>
> }
>
>
> }
>
> public static List getUsbDevicesWithId(UsbDevice usbDevice, short
> vendorId, short productId)
> {
> List list = new ArrayList();
>
> if (vendorId == usbDevice.getUsbDeviceDescriptor().idVendor()
> &&
> productId ==
> usbDevice.getUsbDeviceDescriptor().idProduct())
> list.add(usbDevice);
>
> if (usbDevice.isUsbHub()) {
> List devices =
> ((UsbHub)usbDevice).getAttachedUsbDevices();
> for (int i=0; i<devices.size(); i++)
>
> list.addAll(getUsbDevicesWithId((UsbDevice)devices.get(i),
> vendorId, productId));
> }
>
> return list;
> }
> }
>
>
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