An userspace daemon for managing airplane mode. It listens for KEY_RFKILL on a given event device and automatically saves and restores rfkill device state when entering and leaving airplane mode respectively.
It's a work in progress and many imperfections are present.
The LED name is currently hardcoded to asus-wireless::airplane.
If you wish to use rfkill's integrated input handler and only manage the LED, check out the ledonly branch. (see what I did there?)
Adjust the #define LEDNAME in airplaned.c to whatever your airplane mode LED is called. (Look into /sys/class/leds)
Find your airplane mode button input device by running grep -B5 rfkill /proc/bus/input/devices. You are interested in eventXX listed in the line
starting with H:. You may get multiple results, but unless
you have multiple airplane mode buttons (contact me) only one of them will be correct. To find it, you could use evtest and monitor the
event device for output when pressing the button. On my ASUS zenbook 2 devices are detected and the correct one is called
Asus Wireless Radio Control.
make
sudo make install
sudo systemctl enable airplaned@eventXX.service
reboot or sudo systemctl start airplaned@eventXX.service.
The daemon should now disable rfkill's integrated input handler and listen for input.