Headphone media control

[rmblror]

Hi, does anyone know how to change the functionality of button presses on standard 3.5mm jack devices?

I have some headphones with a volume up/down and play/pause buttons that all work as expected. What I want to do is to copy the behavior on android of enabling a double or triple press of the play/pause button to skip forward or back in what I'm listening to. This alone would turn it into a real daily driver for me

[wibble]

I think the kernel driver just maps the button to a key such as KEY_PLAYPAUSE using snd_jack_set_key. To do anything with double or triple clicks you would need either the application to detect and handle them, or a daemon like input-remapper to generate the key events for the alternate functions.
https://github.com/sezanzeb/input-remapper