1.Create file /etc/systemd/qtdemo.service with following content:
[UNIT] Description=Start Multitouch Qt Demo [SERVICE] [Install] WantedBy=multi-user.target
2.Create file /lib/systemd/system/demo.service with following content:
[Unit] After=multi-user.target Description=start Qt demo [Service] Type=forking RemainAfterExit=no ExecStart=/lib/systemd/systemd-demo start ExecStop=/lib/systemd/systemd-demo stop [Install] WantedBy=multi-user.target.wants
3. Create file /lib/systemd/systemd-demo with following content:
#!/bin/sh
# launch demo application
#
export QWS_MOUSE_PROTO=tslib:/dev/input/event1
export TSLIB_TSDEVICE=/dev/input/event1
DEMO_PATH=/usr/bin/qwt-6.0.1
DEMO_EXEC=oscilloscope
DEMO_OPTS=-qws
case "$1" in
start)
echo 0 > /sys/class/graphics/fbcon/cursor_blink
echo 0 > /sys/class/graphics/fbr0/blank
/bin/mount -o remount,rw /
/usr/bin/ts_calibrate
/bin/mount -o remount,ro /
${DEMO_PATH}/${DEMO_EXEC} ${DEMO_OPTS} &
;;
stop)
killall ${DEMO_EXEC}
;;
*)
echo "Usage: $0 {start|stop}"
exit 1
;;
esac
exit 0
4. make /lib/systemd/systemd-demo executable.
5. create symlink demo.service in /etc/system/system/multi-user.target.wants that points to the file /lib/systemd/system/demo.service:
cd /etc/systemd/system/multi-user.target.wants/ ln -s /lib/systemd/system/demo.service demo.service