Viewing file:  sl-modem.py (1.57 KB) -rw-r--r--
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# ubuntu-drivers-common custom detect plugin for sl-modem
#
# (C) 2012 Canonical Ltd.
# Author: Martin Pitt <martin.pitt@ubuntu.com>
import os
import re
import logging
import subprocess
modem_re = re.compile(r'^\s*\d+\s*\[Modem\s*\]')
modem_as_subdevice_re = re.compile(r'^card [0-9].*[mM]odem')
pkg = 'sl-modem-daemon'
def detect(apt_cache):
# Check in /proc/asound/cards
try:
with open('/proc/asound/cards') as fd:
for line in fd:
if modem_re.match(line):
return [pkg]
except IOError as e:
logging.debug('could not open /proc/asound/cards: %s', e)
# Check aplay -l
try:
env = os.environ.copy()
try:
del env['LANGUAGE']
except KeyError:
pass
env['LC_ALL'] = 'C'
try:
aplay = subprocess.Popen(
['aplay', '-l'], env=env,
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
universal_newlines=True)
(aplay_out, aplay_err) = aplay.communicate()
if aplay.returncode != 0:
logging.error('aplay -l failed with %i: %s' % (aplay.returncode,
aplay_err))
return None
except FileNotFoundError:
logging.error('aplay command not found')
return None
except OSError:
logging.debug('could not open aplay -l. Skipping sl-modem detection')
return None
for row in aplay_out.splitlines():
if modem_as_subdevice_re.match(row):
return [pkg]
return None
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