#!/bin/sh
#
# Plugin to monitor fan speed on an IBM/Lenovo Laptop
#
# This plugin reads the current speed of the system fan from
# the /proc file system. As it queries specific files provided
# by kernel modules for IBM/Lenovo Laptops, it probably only
# works for those, but it should be easy to adapt to others
# if similar information is available for other types of laptops.
#
# By dominik dot stadler at gmx dot at
#
# Magic markers (optional - only used by munin-config and some
# installation scripts):
#
#%# family=auto
#%# capabilities=autoconf

if [ "$1" = "autoconf" ]; then
	if [ -r /proc/acpi/ibm/fan ]; then
		echo yes
	else
		echo no
	fi
	exit 0
fi


if [ "$1" = "config" ]; then
	echo 'graph_title Fan speed'
	echo 'graph_args --base 1000 -l 0'
	echo 'graph_vlabel speed'
	echo 'graph_scale no'
	echo 'graph_category sensors'
	echo 'graph_info This graph shows the speed of the system fan.'
	echo 'fan.label speed'
	echo 'fan.info The current speed of the system fan.'
	exit 0
fi

cat /proc/acpi/ibm/fan | grep "speed:" | awk '{print "fan.value " $2}'