I'm trying to send a packet of 64 bytes, the first one (or the second)
equal to 0x30 and the others equals to 0.
Dan Streetman a écrit :
> 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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>>
>
>
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