On Sat, Jun 12, 2010 at 09:28:34AM +0530, Harsha, Priya wrote:

Please fix your MUA to word wrap your messages, it makes them more legible and easier to reply to.

The ALSA's jack reporting framework reports jacks at /dev/input/eventx. But the Android framework expects the jack reporting to be done in /sys/.../switch/h2w.

That ... is simply 'class' - the Android kernel includes a new sysfs class for switches, CCing in Mike Lockwood who wrote it in case he's got any input from the Android side.

Any suggestions as to how the ALSA's jack reporting framework to Android framework? Are there any audio drivers that have mapped this?

The obvious thing to do here seems to be to update the Android framework to be able to use the standard kernel interfaces. I obviously can't speak for Google but it seems like the sort of patch they'd be willing to accept, especially if you retain the ability to use the non-standard extensions that are currently being used.

I guess an alternative would be to have the Android kernels add an adaptor in the input subsystem (for various reasons not all jack sense goes through ALSA) so that input subsystem switches get represented via the Android switch ABI, though that would increase the amount of out of tree code that needs to be carried and so seems like the wrong direction to be heading.