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#!/bin/bash
#
# This is a simple example script to show how one could control powernowd
# with one simple command. it could be adapted to be used as an init script.
#
# It unserstands "stop", "start", "restart", and these other commands:
# "dyn" turn on dynamic control (alias to start, aka, run the daemon)
# "high" kill daemon, set cpu to high speed.
# "low" kill daemon, set cpu to low speed.
#
OPTIONS=""
if [ "$1" = "start" -o "$1" = "restart" -o "$1" = "dyn" ]; then
killall -15 powernowd >& /dev/null
/usr/sbin/powernowd $OPTIONS
exit
fi
if [ "$1" = "stop" ]; then
killall -15 powernowd >& /dev/null
exit
fi
if [ "$1" = "high" -o "$1" = "low" ]; then
killall -15 powernowd >& /dev/null
for i in `/bin/ls /sys/devices/system/cpu/`; do
pushd . >& /dev/null
cd /sys/devices/system/cpu/$i/cpufreq
if [ "$1" = "low" ]; then
cat scaling_min_freq > scaling_setspeed
else
cat scaling_max_freq > scaling_setspeed
fi
popd >& /dev/null
done
exit
fi
echo "Unrecognised option \"$1\""
exit
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