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|
#!/bin/bash
#
# alsasound This shell script takes care of starting and stopping
# ALSA sound driver.
#
# Copyright (c) by Jaroslav Kysela <perex@jcu.cz>
#
# Slightly modified for Debian GNU/Linux by Wichert Akkerman.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
# For RedHat 5.0:
# chkconfig: 2345 87 14
# description: ALSA driver
#
maxcards=8
maxmixers=2
function start() {
#
# insert all sound modules
#
cat /etc/conf.modules | \
grep -E "^alias.+snd-card-[[:digit:]]" | \
awk '{print $3}' | \
while read line; do \
echo -n "Starting sound driver: $line "; \
/sbin/modprobe $line; \
echo "done."; \
done
#
# restore mixer settings
#
idx=0
while [ $idx -lt $maxcards ]; do
if [ -d /etc/sound/$idx ] && [ -d /proc/asound/$idx ]; then
idx1=0
while [ $idx1 -lt $maxmixers ]; do
if [ -r /etc/sound/$idx/mixer$idx1 ] && [ -w /proc/asound/$idx/mixer$idx1 ]; then
cat /etc/sound/$idx/mixer$idx1 > /proc/asound/$idx/mixer$idx1
fi
idx1=$[$idx1+1]
done
fi
idx=$[$idx+1]
done
}
function stop() {
#
# save mixer settings
#
idx=0
while [ $idx -lt $maxcards ]; do
if [ -d /proc/asound/$idx ]; then
idx1=0
while [ $idx1 -lt $maxmixers ]; do
if [ -r /proc/asound/$idx/mixer$idx1 ]; then
mkdir -p /etc/sound/$idx
cat /proc/asound/$idx/mixer$idx1 > /etc/sound/$idx/mixer$idx1
fi
idx1=$[$idx1+1]
done
fi
idx=$[$idx+1]
done
#
# remove all sound modules
#
/sbin/lsmod | grep -E "^snd" | while read line; do \
/sbin/rmmod `echo $line | cut -d ' ' -f 1`; \
done
}
# See how we were called.
case "$1" in
start)
# Start driver.
if [ ! -d /proc/asound ]; then
start
else
echo "ALSA driver is already running."
fi
;;
stop)
# Stop daemons.
if [ -d /proc/asound ]; then
echo -n "Shutting down sound driver: "
stop
echo "done."
else
echo "ALSA driver isn't running."
fi
;;
restart)
$0 stop
$0 start
;;
force-reload)
$0 restart
;;
*)
echo "Usage: /etc/init.d/alsa {start|stop|restart}"
exit 1
esac
exit 0
|
