| # Copyright (c) 2012 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. |
| |
| ''' |
| Utilities for serial port communication. |
| ''' |
| import glob |
| import os |
| import re |
| |
| def find_tty_by_driver(driver_name): |
| '''Finds the tty terminal matched to the given driver_name.''' |
| candidates = glob.glob('/dev/tty*') |
| for path in candidates: |
| if re.search( |
| driver_name, |
| os.path.realpath('/sys/class/tty/%s/device/driver' % |
| os.path.basename(path))): |
| return path |
| return None |
