gnutoo@gnutoo-laptop:~$ cat /etc/rc5.d/S99ondemand
#! /bin/sh
### BEGIN INIT INFO
# Provides:          ondemand
# Required-Start:    $remote_fs $all
# Required-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:
# Short-Description: Set the CPU Frequency Scaling governor to "ondemand"
### END INIT INFO


PATH=/sbin:/usr/sbin:/bin:/usr/bin

. /lib/init/vars.sh
. /lib/lsb/init-functions

case "$1" in
    start)
        start-stop-daemon --start --background --exec /etc/init.d/ondemand -- background
        ;;
    background)
    sleep 60 # probably enough time for desktop login

    for CPUFREQ in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
    do
        [ -f $CPUFREQ ] || continue
        echo -n ondemand > $CPUFREQ
    done
    ;;
    restart|reload|force-reload)
        echo "Error: argument '$1' not supported" >&2
        exit 3
        ;;
    stop)
        ;;
    *)
        echo "Usage: $0 start|stop" >&2
        exit 3
        ;;
esac