At hackerspace.gent we have a Fujitsu touch screen PC that we use as the cash register for the bar. However, the screen is rather slow to wake up when you tap it. The hardware has a built-in presence detect sensor within the webcam module. This repository contains a daemon that monitors this sensor and wakes up the screen when a human-like object is detected.
The device identifier of the sensor in this machine is:
0bf8:101a Fujitsu Siemens Computers HID Presence Sensor
Install the debian package from this repository (or build it yourself, see below).
Then create a systemd user service (important, not system-level) in ~/.config/systemd/user/pddriver.service from the account running the bar UI.
Then reload using systemctl --user daemon-reload, and enable and start using:
systemctl --user enable pddriver
systemctl --user start pddriver
Inspect the log files using systemctl --user status pddriver
Install the dependencies using:
sudo apt install libudev-dev libusb-1.0-0-dev xdotool
Build using a recent version of cmake, and copy the pddriver executable to /usr/local/bin.
Chown the pddriver executable to root, and set the correct setuid permissions:
chown root /usr/local/bin/pddriver
chmod u+s /usr/local/bin/pddriver
A Debian package should be able to be created using
cpack -G DEB
This tool was written by Yvan Janssens yvanj@cyber.gent.