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acpid
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2006-04-22
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#! /bin/bash
# Copyright (c) 2002 SuSE Linux AG, Nuernberg, Germany.
# All rights reserved.
#
# Authors: Christian Zoz <zoz@suse.de>
# Timo Hoenig <thoenig@suse.de>
#
# /etc/init.d/acpid
# and its symbolic link
# /usr/sbin/rcacpid
#
# LSB compliant service control script; see http://www.linuxbase.org/spec/
#
### BEGIN INIT INFO
# Provides: acpid
# Required-Start:
# X-UnitedLinux-Should-Start:
# Required-Stop:
# X-UnitedLinux-Should-Stop:
# Default-Start: 2 3 5
# Default-Stop: 0 1 6
# Short-Description: Listen and dispatch ACPI events from the kernel
# Description: acpid reads events from /proc/acpi/event and dispatches
# them (by SuSE default) to other "users" like powersaved, HAL and IAL.
# Actions for those events are (by SUSE default) configured in the
# powersaved configuration.
# Additionally this start script loads all needed modules.
### END INIT INFO
# Check for missing binaries (stale symlinks should not happen)
ACPID_BIN=/sbin/acpid
test -x $ACPID_BIN || exit 5
# Shell functions sourced from /etc/rc.status:
# rc_check check and set local and overall rc status
# rc_status check and set local and overall rc status
# rc_status -v ditto but be verbose in local rc status
# rc_status -v -r ditto and clear the local rc status
# rc_status -s display "skipped" and exit with status 3
# rc_status -u display "unused" and exit with status 3
# rc_failed set local and overall rc status to failed
# rc_failed <num> set local and overall rc status to <num>
# rc_reset clear local rc status (overall remains)
# rc_exit exit appropriate to overall rc status
# rc_active checks whether a service is activated by symlinks
# rc_splash arg sets the boot splash screen to arg (if active)
. /etc/rc.status
# Reset status of this service
rc_reset
# Return values acc. to LSB for all commands but status:
# 0 - success
# 1 - generic or unspecified error
# 2 - invalid or excess argument(s)
# 3 - unimplemented feature (e.g. "reload")
# 4 - user had insufficient privileges
# 5 - program is not installed
# 6 - program is not configured
# 7 - program is not running
# 8--199 - reserved (8--99 LSB, 100--149 distrib, 150--199 appl)
#
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signaling is not supported) are
# considered a success.
ACPI_MODULES=""
DEFAULT_ACPI_MODULES="ac battery button fan processor thermal"
ACPI_LAPTOP_MODULES_PROBE="asus_acpi ibm_acpi toshiba_acpi sony_acpi pcc_acpi"
ACPI_LAPTOP_MODULES_FILE="/var/lib/acpi/laptop_modules"
ARCH=`uname -i`
case $ARCH in
ia64) DEFAULT_ACPI_MODULES="button fan processor thermal"
ACPI_LAPTOP_MODULES_PROBE=""
# avoid even occassional probing of laptop modules!
ACPI_LAPTOP_MODULES_USER="NONE"
;;
esac
[ -f /etc/sysconfig/powersave/common ] && . /etc/sysconfig/powersave/common
[ -f /etc/sysconfig/acpi ] && . /etc/sysconfig/acpi
case "$1" in
start)
if [ ! -d /proc/acpi ] ; then
echo -n "acpid: no ACPI support in kernel"
rc_status -s
rc_exit
fi
echo -n "acpid: loading ACPI modules ( "
if [ "$ACPI_MODULES" != "NONE" ]; then
# load ACPI modules
for m in ${ACPI_MODULES:-$DEFAULT_ACPI_MODULES}; do
grep -wq $m /proc/modules || { modprobe -s $m && echo -n "$m " || rc_status; }
done
fi
echo -n ") "
rc_status -v
if [ -n "$ACPI_LAPTOP_MODULES_USER" ]; then
if [ "$ACPI_LAPTOP_MODULES_USER" != "NONE" ]; then
# Load modules defined by user
for m in ${ACPI_LAPTOP_MODULES_USER}; do
grep -wq $m /proc/modules || { modprobe -s $m || rc_status; }
done
fi
else
if [ /boot/vmlinuz -ot "$ACPI_LAPTOP_MODULES_FILE" ]; then
# Load modules defined by system probe
while read m; do
grep -wq $m /proc/modules || { modprobe -s $m || rc_status; }
done < $ACPI_LAPTOP_MODULES_FILE
else
# First run, or kernel has been updated. We have to probe which
# modules load successfully.
echo -n "acpid: probing laptop ACPI modules "
touch "$ACPI_LAPTOP_MODULES_FILE"
for m in $ACPI_LAPTOP_MODULES_PROBE; do
if modprobe -s $m; then
# pcc_acpi and sony_acpi can be loaded always.
# remove them if the system does not support them.
case $m in
sony_acpi)
if [ ! -r /proc/acpi/sony/brightness ] ; then
rmmod sony_acpi;
continue
fi ;;
pcc_acpi)
if [ ! -r /proc/acpi/panasonic ] ; then
rmmod pcc_acpi;
continue
fi ;;
esac
echo $m >> $ACPI_LAPTOP_MODULES_FILE
fi
done
echo -n;
rc_status -v;
fi
fi
echo -n "Starting acpid "
startproc $ACPID_BIN
rc_status -v
;;
stop)
echo -n "Shutting down acpid "
killproc -TERM $ACPID_BIN
rc_status -v
;;
try-restart)
$0 status
if test $? = 0; then
$0 restart
else
rc_reset # Not running is not a failure.
fi
rc_status
;;
restart)
$0 stop
$0 start
rc_status
;;
force-reload|reload)
echo -n "Reload service acpid "
killproc -HUP $ACPID_BIN
rc_status -v
;;
status)
echo -n "Checking for service acpid "
PID=`checkproc -v $ACPID_BIN`
if rc_status ; then
case `cat /proc/$PID/cmdline` in *events.ignore) rc_failed 3; esac
fi
rc_status -v
;;
probe)
test $ACPID_CONFIG -nt /var/run/acpid.pid && echo restart
;;
*)
echo "Usage: $0" \
"{start|stop|status|try-restart|restart|force-reload|reload|probe}"
exit 1
;;
esac
rc_exit