Start service after resume from sleep

Ask Fedora
1

I have a service that keeps my kemove keyboard sane:

/etc/systemd/system/kemove-keyboard.service

[Unit]
Description=kemove-keyboard

[Service]
Type=oneshot
ExecStart=/bin/sh -c "echo 2 > /sys/module/hid_apple/parameters/fnmode"

[Install]
WantedBy=multi-user.target

Yet after returning from sleep /sys/module/hid_apple/parameters/fnmode goes back to 3 again which breaks the function keys on the kemove.

How do I make sure that the service is rerun on wake up?

2

Just a guess but did you update your initramfs after making the change?
I forget sometimes myself…lol

sudo dracut --regenerate-all --force
3

To trigger the service after resume WantedBy must be changed to

[Install]
WantedBy=suspend.target hibernate.target
4 
echo "options hid_apple fnmode=2" | sudo tee /etc/modprobe.d/hid_apple
sudo dracut --regenerate-all --force

should also work.