linux-kernel - Re: spitz: add gpio button support (AK_INT and remote control description)

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Date:	Wed, 7 Oct 2009 22:27:52 +0800
From:	Eric Miao <eric.y.miao@...il.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Stanislav Brabec <utx@...guin.cz>, Pavel Machek <pavel@....cz>,
	rpurdie@...ys.net, lenz@...wisc.edu,
	kernel list <linux-kernel@...r.kernel.org>,
	Dirk@...er-online.de, arminlitzel@....de,
	Cyril Hrubis <metan@....cz>, thommycheck@...il.com,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	dbaryshkov@...il.com, omegamoon@...il.com
Subject: Re: spitz: add gpio button support (AK_INT and remote control 
	description)

So what's the conclusion of the patch? Any ACK/NAK or patch needs updating?

On Wed, Oct 7, 2009 at 8:06 PM, Mark Brown
<broonie@...nsource.wolfsonmicro.com> wrote:
> On Wed, Oct 07, 2009 at 01:29:51PM +0200, Stanislav Brabec wrote:
>
>> SW_REMOTE_INSERT should be recognized by the Jack abstraction layer
>> (sound/core/jack.c).
>
> It's the other way around - the jack layer reports jacks for ALSA cards.
> Also, for spitz you'd probably want to be using the ASoC wrapper layer.
>
>> Well, I am thinking about defining extra values for resistors, that can
>> make stuff even more useful at cost of need of non-standard wiring on
>> fourth ring of the audio jack. It can generate SW_MICROPHONE_INSERT,
>> SW_LINEOUT_INSERT, and not yet defined SW_HEADESET_INSERT and
>> SW_LINEIN_INSERT (which would require hardware mod inside Zaurus for
>> stereo line-in).
>
> Headset should be represented by reporting headphone plus microphone on
> one jack simultaneously.
>
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