#!/bin/bash
# In auto mode the fan does not use the maximum speed when temerature is 
# high, this script manually set fan speed to full-speed/ returns ist to
# auto mode.
start() {
    echo "Starting Service"
    chmod 744 /proc/acpi/ibm/fan
    while : 
    do
        CURRENTSPEED=`cat /proc/acpi/ibm/fan | grep level: | awk 'NF>1{print $NF}'`
        CURRENTTMP=`cat /proc/acpi/ibm/thermal | grep -o -E '[0-9]+' | sed -n '1p'`
        if  [ $CURRENTTMP -gt 80 ]; then
            echo "level full-speed" > /proc/acpi/ibm/fan
            RETURN="$CURRENTSPEED -> disengaged"
        elif [ $CURRENTTMP -lt 65 ]; then
            echo "level auto" > /proc/acpi/ibm/fan
            RETURN="$CURRENTSPEED -> auto"
        fi
        sleep 5
    done
}

stop() {
    echo "Stopping Service"
    killall fancontrol
}

case "$1" in 
    start)
        start &
        ;;
    stop)
        stop
        ;;
    status)
        ;;
    restart|reload|condrestart)
        stop
        start &
        ;;
    *)
        echo $"Usage: $0 {start|stop|restart|reload|status}"
        exit 1
esac
exit 0