busdrivers

#!/bin/bash
#
# Script to enable i2c bus drive modules. It assumes the drivers are loaded in /etc/modules and present in /proc/modules
#
# BMP280 on id 0x76
# MPL3115 on id 060
if [ $UID != 0 ]
then
	echo "Must be run as root"
	exit
fi

BUS="/sys/bus/i2c/devices/i2c-1"
#BMP280ID="0x76"
#MP3115ID="0x60"
BH1750ID="0x23"

clean()
{
	echo "Removing i2c drivers..."
	if [ -n "$BMP280ID" ]
	then
		echo $BMP280ID > $BUS/delete_device
	fi
	if [ -n "$BMP280ID" ]
	then
		echo $MP3115ID > $BUS/delete_device
	fi
	if [ -n "$BH1750ID" ]
	then
		echo $BH1750ID > $BUS/delete_device
	fi
}

install()
{
	if grep bmp280_i2c /proc/modules > /dev/null
	then
		echo "BMP280 device enabled at $BMP280ID"
		echo "bmp280 $BMP280ID" > $BUS/new_device
	fi
	if grep mpl3115 /proc/modules > /dev/null
	then
		echo "MP3115A2 device enabled at $MP3115ID"
		echo "mpl3115 $MP3115ID" > $BUS/new_device
	fi
	if grep bh1750 /proc/modules > /dev/null
	then
		echo "BH1750 enabled on $BH1750ID"
		echo "bh1750 $BH1750ID" > $BUS/new_device
	fi
}

if [ "$1" == "clean" ]
then
	clean
else
	install
fi