Are you sure you want to send 62 zeros? Is that what the device's spec says?
On Thu, Jul 17, 2008 at 12:10 PM, Marion Decrouez
<[EMAIL PROTECTED]> wrote:
> 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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