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#!/bin/bash
#
# chkconfig: 2345 26 74
# description: sensors is used for monitoring motherboard sensor values.
# config: /etc/sysconfig/sensors
#
#    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.

# See also the lm_sensors homepage at:
#     http://www2.lm-sensors.nu/~lm78/index.html

# It uses a config file /etc/sysconfig/sensors that contains the modules to
# be loaded/unloaded. That file is sourced into this one.

# The format of that file a shell script that simply defines the modules
# in order as normal shell variables with the special names:
#    MODULE_1, MODULE_2, MODULE_3, etc.

. /etc/rc.conf
. /etc/rc.d/functions

if grep -q sysfs /proc/mounts; then
  WITHSYS=1
else
  WITHSYS=0
fi

CONFIG=/etc/conf.d/lm_sensors
PSENSORS=/usr/bin/sensors
if [ ! -x $PSENSORS ]; then
  PSENSORS=/usr/bin/sensors
fi

case "$1" in
  start)
    stat_busy "Starting Up Sensors"

    if [ $WITHSYS == "0" ]; then
      # If sensors isn't supported by the kernel, try loading the module...
      [ -e /proc/sys/dev/sensors ] || /sbin/modprobe i2c-proc &>/dev/null

      # Don't bother if /proc/sensors still doesn't exist, kernel doesn't have
      # support for sensors.
      [ -e /proc/sys/dev/sensors ] || exit 0

      # If sensors was not already running, unload the module...
      [ -e /var/lock/subsys/lm_sensors ] || /sbin/modprobe -r i2c-proc &>/dev/null
    fi


    if [ -r "$CONFIG" ]; then
        . "$CONFIG"
        modules=`grep \^MODULE_ $CONFIG | wc -l | tr -d ' '`
        i=0
        while [ $i -lt $modules ] ; do
            module=`eval echo '$'MODULE_$i`
            #echo starting module __${module}__ #debug
           /sbin/modprobe $module &>/dev/null
           i=`expr $i + 1`
        done
    fi
    $PSENSORS -s

    if [ $? -gt 0 ]; then
      stat_fail
    else
      add_daemon sensors
      stat_done
    fi	  
    ;;

  stop)
    stat_busy "Shutting Down Sensors"

    if [ -r "$CONFIG" ]; then
        . "$CONFIG"
        modules=`grep \^MODULE_ $CONFIG | wc -l | tr -d ' '`
        i=`expr $modules`
        while [ $i -ge 0 ] ; do
            module=`eval echo '$'MODULE_$i`
            /sbin/modprobe -r $module &>/dev/null
            i=`expr $i - 1`
        done
    fi

    if [ $WITHSYS == "0" ]; then
      /sbin/modprobe -r i2c-proc &>/dev/null
    fi

    if [ $? -gt 0 ]; then
      stat_fail
    else
      rm_daemon sensors
      stat_done
    fi
    ;;
    
  dostatus)
    $PSENSORS
    RETVAL=$?
    ;;
    
  restart)
    $0 stop
    sleep 1
    $0 start
    ;;

  condrestart)
    [ -e /var/lock/subsys/lm_sensors ] && restart || :
    ;;

  *)
    echo "Usage: sensors.init {start|stop|status|restart|reload|condrestart}"
esac