ipts-mode

#!/bin/sh

# Check if IPTS driver is loaded
if [ ! -d "/sys/module/ipts" ]; then
	echo "ERROR: IPTS module not loaded!"
	exit -19
fi

usage() {
	echo "Usage: $0 [OPTION]..."
	echo "Control the mode of an IPTS touchscreen."
	echo
	echo "Options:"
	echo "    -h    This help message"
	echo "    -s    Set the touchscreen to stylus mode"
	echo "    -t    Set the touchscreen to touch mode"
	echo "    -c    Cycle between touchscreen modes"
	exit
}

notify() {
	if [ "$SUDO_USER" = "" ]; then
		notify-send -i utilities-terminal "IPTS" "$1"
		return
	fi

	ID=$(id -u $SUDO_USER)
	sudo -u $SUDO_USER \
		DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/$ID/bus" \
		notify-send -i utilities-terminal "IPTS" "$1"
}

get_mode() {
	MODE=$(sudo cat /sys/module/ipts/parameters/singletouch)
	if [ "$MODE" = "N" ]; then
		echo 0
	else
		echo 1
	fi
}

set_mode() {
	sudo modprobe -r ipts
	sudo modprobe ipts singletouch=$1
	if [ "$1" = "0" ]; then
		notify "Touchscreen set to stylus mode"
	else
		notify "Touchscreen set to touch mode"
	fi
}

while getopts ":hstc" args; do
	case "$args" in
	s)
		set_mode 0
		;;
	t)
		set_mode 1
		;;
	c)
		set_mode $((1 - $(get_mode)))
		;;
	*)
		usage
		;;
	esac
done