#!/bin/sh
# K.H. Jensen 2008
# eeefan - eee pc 901 / 1000 / 1000H fan control utility

temperature_reading=/proc/eee/temperature
fan_control=/proc/eee/fan_speed
fan_manual_switch=/proc/eee/fan_manual
# Set critical temperature where the fan starts
TEMP_CRITICAL=62
# Set fan speed above TEMP_CRITICAL
FAN_SPEED_CRITICAL=65
# Set fan speed below TEMP_CRITICAL
FAN_SPEED_SUBCRITICAL=25

eeefanupdate() {
	# Get temperature reading
	TEMP=$(cat $temperature_reading)
	# Compa	re to the critical temperature
	if [ $TEMP -ge  $TEMP_CRITICAL ];then
		# High fan speed
		echo $FAN_SPEED_CRITICAL > $fan_control
	else			
	# Low fan speed
		echo $FAN_SPEED_SUBCRITICAL > $fan_control
	fi
}

# cron jobs can only be executed once every minute,
# so we have to use the sleep command
# Turn on manual fan control
echo 1 > $fan_manual_switch
# Run eeefan, then wait 10 seconds.
eeefanupdate
sleep 10
eeefanupdate
sleep 10
eeefanupdate
sleep 10
eeefanupdate
sleep 10
eeefanupdate