private void transferUartData() {
        if (mLoopbackDevice != null) {
            // Loop until there is no more data in the RX buffer.
            try {
                //Log.e(TAG, "Reading1");
                byte[] buffer = new byte[CHUNK_SIZE];
                mLoopbackDevice.write(buffer, 45);
                int read;
                while ((read = mLoopbackDevice.read(buffer, buffer.length))!=0) {
                    mLoopbackDevice.write(buffer, read);
                    Log.e(TAG, String.valueOf(read));
                }
            } catch (IOException e) {
                Log.w(TAG, "Unable to transfer data over UART", e);
            }
        }
    }