Re: [PATCH v3 0/2] ALSA: jack: Refactoring for jack kctls

[Mark Brown <broonie@kernel.org>]

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On Mon, Mar 23, 2015 at 04:09:33PM +0100, Takashi Iwai wrote:

> Right, but it's a bit irrelevant.  We do want to have a common core
> code, indeed.  However, as David suggested, the latest patchset still
> doesn't care about "phantom" jack that is a mandatory feature.
> HD-audio create kctl items even for fixed pins without jack detection.
> This is needed for having consistent pin mapping.

OK, right - phantom jacks aren't something I was aware of.

> Now the question is whether we need representing the same item for
> input jack, even though it's nothing but a place holder.  If we want
> to have consistency between input and kctl jack items, then yes.
> OTOH, we might want to drop buttons from kctls in anyway, so such a
> consistency has no importance.  Then we may just ignore phantom jacks
> for input jacks but create only phatom jack kctls, too, either by
> adding a new flag to indicate that, or let type=0 behaving like that.

I'm not sure I see the relevancy of buttons here?

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