gistfile1.txt

ByteBuffer buff = ByteBuffer.allocateDirect(2);
            buff.order(ByteOrder.LITTLE_ENDIAN);


            res = LibUsb.controlTransfer(handle,
                    (byte) (LibUsb.ENDPOINT_IN | LibUsb.REQUEST_TYPE_VENDOR),
                    (byte) 51,
                    (short) 0,
                    (short) 0,
                    buff,
                    0);

            assert (res == 2);

            short protocolVersion = buff.getShort(0);

            System.out.println("Android Accessory Mode protocol: " + protocolVersion);


            res = sendStr(handle, 0, MANUFACTURER_NAME);
            res = sendStr(handle, 1, MODEL_NAME);
            res = sendStr(handle, 2, DESCRIPTION);
            res = sendStr(handle, 3, VERSION);
            res = sendStr(handle, 4, URI);
            res = sendStr(handle, 5, SERIAL);

            buff = ByteBuffer.allocateDirect(0);
            res = LibUsb.controlTransfer(handle,
                    (byte) (LibUsb.ENDPOINT_OUT | LibUsb.REQUEST_TYPE_VENDOR),
                    (byte) 53,
                    (short) 0,
                    (short) 0,
                    buff,
                    0
            );
            
            static int sendStr(DeviceHandle handle, int index, String str) {


        byte[] strdata = str.getBytes(Charsets.UTF_8);
        ByteBuffer buff = ByteBuffer.allocateDirect(strdata.length);
        buff.put(strdata);

        /*
        byte[] strdata = str.getBytes(Charsets.UTF_8);
        ByteBuffer buff = ByteBuffer.allocateDirect(strdata.length + 1);
        buff.put(strdata);
        buff.put((byte)0);
        */

        int res = LibUsb.controlTransfer(handle,
                (byte) (LibUsb.ENDPOINT_OUT | LibUsb.REQUEST_TYPE_VENDOR),
                (byte) 52,
                (short) 0,
                (short) index,
                buff,
                0
        );
        return res;
    }