mixer revision 127478 
1#!/bin/sh -
2#
3# Copyright (c) 2004  The FreeBSD Project
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
27# $FreeBSD: head/etc/rc.d/mixer 127478 2004-03-27 09:26:22Z dougb $
28#
29
30# PROVIDE: mixer
31# REQUIRE: LOGIN usbd
32# KEYWORD: FreeBSD nojail shutdown
33
34. /etc/rc.subr
35
36name="mixer"
37stop_cmd="mixer_stop"
38start_cmd="mixer_start"
39reload_cmd="mixer_start"
40extra_commands="reload"
41
42#
43# List current mixer devices to stdout.
44#
45list_mixers()
46{
47	( cd /dev ; ls mixer* 2>/dev/null )
48}
49
50#
51# Save state of an individual mixer specified as $1
52#
53mixer_save()
54{
55	local dev
56
57	dev="/dev/${1}"
58	if [ -r ${dev} ]; then
59		/usr/sbin/mixer -f ${dev} -s > /var/db/${1}-state 2>/dev/null
60	fi
61}
62
63#
64# Restore the state of an individual mixer specified as $1
65#
66mixer_restore()
67{
68	local file dev
69
70	dev="/dev/${1}"
71	file="/var/db/${1}-state"
72	if [ -r ${dev} -a -r ${file} ]; then
73		/usr/sbin/mixer -f ${dev} `cat ${file}` > /dev/null
74	fi
75}
76
77#
78# Restore state of all mixers
79#
80mixer_start()
81{
82	local mixer
83
84	for mixer in `list_mixers`; do
85		mixer_restore ${mixer}
86	done
87}
88
89#
90# Save the state of all mixers
91#
92mixer_stop()
93{
94	local mixer
95
96	for mixer in `list_mixers`; do
97		mixer_save ${mixer}
98	done
99}
100
101load_rc_config $name
102run_rc_command "$1"
103