Re: [alsa-devel] [PATCH] ALSA: SoC: Added jack detection kcontrolsupport
From: David Henningsson
Date: Wed Jul 24 2013 - 02:17:15 EST
On 07/24/2013 02:13 AM, Mark Brown wrote:
On Tue, Jul 23, 2013 at 05:10:29PM -0700, Felipe Tonello wrote:
On Tue, Jul 23, 2013 at 5:40 AM, Mark Brown <broonie@xxxxxxxxxx> wrote:
This was the existing kernel API at the time that the code was added -
I beleive people had been doing that for simple switches that detect the
physical presence of a jack since it looks exactly like a button from a
hardware point of view. See the original commit adding the code.
I saw it. I don't know what you think is the best way to go. I'm not
sure if someone is using this input event API, since even PulseAudio
even declined that implementation due KControl implementation.
It's used quite a bit in embedded systems, there are actually patches
for PulseAudio which were deployed for a while- I guess they might have
been removed or something.
The input event implementation was only in Ubuntu (for a release or
two), and was never merged in upstream PA. (I guess one could find them
by looking in the Ubuntu archives.)
--
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/