linux-kernel - Re: [PATCH 1/4] ALSA: Added jack detection kcontrol support

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Date:	Wed, 31 Jul 2013 20:49:25 -0700
From:	Felipe Ferreri Tonello <eu@...ipetonello.com>
To:	Takashi Iwai <tiwai@...e.de>
CC:	Mark Brown <broonie@...nel.org>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org,
	David Henningsson <david.henningsson@...onical.com>,
	Wang Xingchao <xingchao.wang@...ux.intel.com>,
	Jaroslav Kysela <perex@...ex.cz>
Subject: Re: [PATCH 1/4] ALSA: Added jack detection kcontrol support

Hi Takashi,

On 07/29/2013 05:05 AM, Takashi Iwai wrote:
> At Sat, 27 Jul 2013 13:25:24 +0100,
> Mark Brown wrote:
>>
>> On Fri, Jul 26, 2013 at 04:13:40PM -0700, Felipe Tonello wrote:
>>> On Fri, Jul 26, 2013 at 3:48 PM, Mark Brown <broonie@...nel.org> wrote:
>>
>>>>>> What I'd expect to happen here is that for multi function jacks we
>>>>>> create a control per function if the controls are valid.
>>
>>> Ok, so the idea is just to change the control to type integer instead
>>> of boolean, right?
>>> Because as you say, the user will be able to check the type of jack
>>> based on the status value, right?
>>
>> It might be more idiomatic and more compatible with userspace to create
>> multiple controls for the jack, there was some discussion of this in the
>> past I think but I can't remember the result.
>
> I also forget the end result :)
>
> Another option would be to make an enum control, but multiple boolean
> controls are easier in the end.  The headset controls of HD-audio are
> represented in that way, too (because HD-audio specification can't
> tell better).

Yes. Thanks for the comment.

Felipe Tonello
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