| #!/bin/sh |
| |
| # Copyright (c) 2013 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # Helper script for sending AT commands to a modem's serial interface |
| # and getting the result back. |
| |
| set -e |
| |
| command="$@" |
| if [ -z "${command}" ]; then |
| echo "Usage: $0 <command>" |
| exit 1 |
| fi |
| |
| tty=/dev/ttyUSB1 |
| if [ ! -c "${tty}" ]; then |
| echo "Missing modem tty device." |
| exit 1 |
| fi |
| |
| /usr/sbin/chat -e ABORT '\nERROR' '' "${command}" '\nOK' < "${tty}" > "${tty}" |
| |
| exit 0 |
