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|
public void testCom(){
if (!this.pret) return;
ByteBuffer buffer = ByteBuffer.allocateDirect(18);
buffer.rewind();
// descriptor device
int transfered = LibUsb.controlTransfer(handle,
LibUsb.ENDPOINT_IN,LibUsb.REQUEST_GET_DESCRIPTOR,(short)0x0100,(short)0x0000,buffer,2000L);
if (transfered < 0) throw new LibUsbException("Control transfer failed", transfered);
System.out.println(transfered + " bytes sent");
System.out.println("--- DEVICE DESCRIPTOR ---");
System.out.println(byteBuffer2String(buffer));
System.out.println();
buffer = ByteBuffer.allocateDirect(9);
// descriptor configuration
transfered = LibUsb.controlTransfer(handle,
LibUsb.ENDPOINT_IN,LibUsb.REQUEST_GET_DESCRIPTOR,(short)0x0200,(short)0x0000,buffer,2000L);
if (transfered < 0) throw new LibUsbException("Control transfer failed", transfered);
System.out.println(transfered + " bytes sent");
System.out.println("--- CONFIGURATION DESCRIPTOR ---");
System.out.println(byteBuffer2String(buffer));
System.out.println();
buffer = ByteBuffer.allocateDirect(8);
// descriptor string
transfered = LibUsb.controlTransfer(handle,
LibUsb.ENDPOINT_IN,LibUsb.REQUEST_GET_DESCRIPTOR,(short)0x0300,(short)0x0409,buffer,2000L);
if (transfered < 0) throw new LibUsbException("Control transfer failed", transfered);
System.out.println(transfered + " bytes sent");
System.out.println("--- DESCRIPTOR STRING ---");
System.out.println(byteBuffer2String(buffer));
System.out.println();
System.out.println("TRYING TO GET DATA ...");
ByteBuffer bufferArgCmd = ByteBuffer.allocateDirect(16);
/*bufferArgCmd.put((byte)0x21);
bufferArgCmd.put((byte)0x09);
bufferArgCmd.put((byte)0x02);
bufferArgCmd.put((byte)0x00);
bufferArgCmd.put((byte)0x00);
bufferArgCmd.put((byte)0x00);
bufferArgCmd.put((byte)0x08);
bufferArgCmd.put((byte)0x00);*/
bufferArgCmd.put((byte)0xA1);
bufferArgCmd.put((byte)0x00);
bufferArgCmd.put((byte)0x00);
bufferArgCmd.put((byte)0x20);
bufferArgCmd.put((byte)0xA1);
bufferArgCmd.put((byte)0x00);
bufferArgCmd.put((byte)0x00);
bufferArgCmd.put((byte)0x20);
bufferArgCmd.rewind();
ByteBuffer bufferResCmd = ByteBuffer.allocateDirect(4);
bufferResCmd.get();
bufferResCmd.get();
ByteBuffer bufferData = ByteBuffer.allocateDirect(32);
ByteBuffer buffer81 = BufferUtils.allocateByteBuffer(32);
// buffer81.put(data);
Transfer transfer = LibUsb.allocTransfer(0);
LibUsb.fillInterruptTransfer(transfer, handle, ENDPOINT_ID, bufferData,
receiveData, null, 3000L);
LibUsb.fillControlSetup(bufferArgCmd,(byte)0x21,(byte)0x09,(short)0x0200,(short)0x0,(short)0x08);
// LibUsb.fillControlTransfer(transfer, handle, bufferArgCmd,
// sendData, null, 2000L);
System.out.println("doing interrupt transfer to device");
int result = LibUsb.submitTransfer(transfer);
if (result != LibUsb.SUCCESS)
{
throw new LibUsbException("Unable to submit transfer", result);
}
System.out.println("Resultat du transfert : ");
System.out.println(byteBuffer2String(bufferData));
}
// This callback is called after the ADB CONNECT message header is
// sent and sends the ADB CONNECT message body.
final TransferCallback receiveData = new TransferCallback()
{
@Override
public void processTransfer(Transfer transfer)
{
System.out.println(transfer.actualLength() + " bytes received !!!! ");
// write(handle, CONNECT_BODY, bodySent);
// LibUsb.freeTransfer(transfer);
}
};
// This callback is called after the ADB CONNECT message header is
// sent and sends the ADB CONNECT message body.
final TransferCallback sendData = new TransferCallback()
{
@Override
public void processTransfer(Transfer transfer)
{
System.out.println("send command to device");
// write(handle, CONNECT_BODY, bodySent);
// LibUsb.freeTransfer(transfer);
}
}; |
[USB] LibUsb error 9 : pipe error
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