Hi! > > I'd like to get detection of headset button presses to work in recent > > kernels, but could not figure it out :-(. > > > My vague memory doesn't tell how basic button press detection was > implemented in Maemo kernel. Was it codec, same voltage detection > circuit than ECI or some another GPIO? I don't even remember did we > implement it for the MeeGo N900 developer edition :-(
Another GPIO, as far as I can tell. There was some delay logic in 2.6
kernel (it removed false events happening when jack was inserted),
other that that it should be quite simple. (But I did not yet figure
it out in 4.x kernel).
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures)
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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