#!/bin/bash
# (C) Rudolf Marek <r.marek@assembler.cz>,
#     Jean Delvare <khali@linux-fr.org>
#
#    Thanks Jean Delvare and Oliver Dreier <oliver@dinux.de> for testing.
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License version 2
#    as published by the Free Software Foundation

pcibus="/sys/bus/pci/slots/"
device="00:1f"

intel=`lspci -n -s $device.0 | grep 8086`

if [ -z "$intel" ] ; then
	echo "Not for your chipset - Intel (ICH) only"
	exit 255;
fi
modprobe fakephp &> /dev/null

if [ ! -d "$pcibus" ] ; then
	echo "You need the fake PCI hotplug driver! (fakephp.ko and 2.6 kernel)"
	exit 255;
fi

echo "Enabling SMBus PCI device ..."

newval=$( printf '%x' $((0x$(setpci -s $device.0 f2.w) & 0xfff7))) 
setpci -s $device.0 f2.w=$newval

echo "Rescanning the bus ..."
echo 1 > $pcibus/0000:$device.0/power 2>/dev/null
if [ ! -d "$pcibus/0000:$device.3" ] ; then
	echo "Failed to enable the SMBUS"
	exit 253;
fi
echo "Done, loading i2c-i801 ..."
modprobe i2c-i801  &> /dev/null