Changes
* This application note provides an example of how to capture a power button click event on Linux.
* It has been tested with the below setup:
Device: fitlet2
CPU: Intel(R) Atom(TM) Processor E3950
OS: Debian Buster (development)
Kernel: 4.13.0-1-amd64
1. Set BIOS -> Main -> OS selection to [Linux]
2. Ignore power button handling provided by systemd, don't forget to reboot: