pulseaudio external mic jack detection - ASoC based card

pulseaudio external mic jack detection - ASoC based card

[maruthi srinivas]

Hi,

I have a issue with mic jack status in Ubuntu "sound settings"  UI.  When
external mic is removed, UI still shows Mic.
When compared to HD Azalia driver, UI shouldn't show any external Mic jack
information, if it is removed.

Codec driver I use reports jack status properly and uses
snd_soc_jack_report().
/proc/interrupts, /dev/input/eventX  reflects jack activity. But the same
is not reflected in UI.

I want to know how pulseaudio detect jack status for drivers which follow
ALSA SoC architecture.
Does it read from any event from /dev/input/eventX ?

Please help in understanding.

Regards,
Maruthi

Re: pulseaudio external mic jack detection - ASoC based card

[Tanu Kaskinen]

On Wed, 2015-07-08 at 16:33 +0530, maruthi srinivas wrote:
> Hi,
> 
> I have a issue with mic jack status in Ubuntu "sound settings"  UI. 
>  When
> external mic is removed, UI still shows Mic.
> When compared to HD Azalia driver, UI shouldn't show any external Mic 
> jack
> information, if it is removed.
> 
> Codec driver I use reports jack status properly and uses
> snd_soc_jack_report().
> /proc/interrupts, /dev/input/eventX  reflects jack activity. But the 
> same
> is not reflected in UI.
> 
> I want to know how pulseaudio detect jack status for drivers which 
> follow
> ALSA SoC architecture.
> Does it read from any event from /dev/input/eventX ?

No, pulseaudio doesn't use the /dev/input devices, it reads the jack
state from the alsa mixer interface.

-- 
Tanu

Re: pulseaudio external mic jack detection - ASoC based card

[David Henningsson]

On 2015-07-08 13:03, maruthi srinivas wrote:
> Hi,
>
> I have a issue with mic jack status in Ubuntu "sound settings"  UI.  When
> external mic is removed, UI still shows Mic.
> When compared to HD Azalia driver, UI shouldn't show any external Mic jack
> information, if it is removed.
>
> Codec driver I use reports jack status properly and uses
> snd_soc_jack_report().
> /proc/interrupts, /dev/input/eventX  reflects jack activity. But the same
> is not reflected in UI.
>
> I want to know how pulseaudio detect jack status for drivers which follow
> ALSA SoC architecture.
> Does it read from any event from /dev/input/eventX ?
>
> Please help in understanding.

Has this not been unified in (very) recent kernels, so that ASoC also 
creates kcontrols, or at least has the possibility to do so?

Also, out of curiousity, what machine is this?

-- 
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic

Re: pulseaudio external mic jack detection - ASoC based card

[Takashi Iwai]

On Wed, 22 Jul 2015 14:28:54 +0200,
David Henningsson wrote:
> 
> 
> 
> On 2015-07-08 13:03, maruthi srinivas wrote:
> > Hi,
> >
> > I have a issue with mic jack status in Ubuntu "sound settings"  UI.  When
> > external mic is removed, UI still shows Mic.
> > When compared to HD Azalia driver, UI shouldn't show any external Mic jack
> > information, if it is removed.
> >
> > Codec driver I use reports jack status properly and uses
> > snd_soc_jack_report().
> > /proc/interrupts, /dev/input/eventX  reflects jack activity. But the same
> > is not reflected in UI.
> >
> > I want to know how pulseaudio detect jack status for drivers which follow
> > ALSA SoC architecture.
> > Does it read from any event from /dev/input/eventX ?
> >
> > Please help in understanding.
> 
> Has this not been unified in (very) recent kernels, so that ASoC also 
> creates kcontrols, or at least has the possibility to do so?

Yes, ASoC on 4.2 kernel provides the jack kctls, too.


Takashi

Re: pulseaudio external mic jack detection - ASoC based card

[maruthi srinivas]

This is for  upcoming AMD ASoC driver.

On Wed, Jul 22, 2015 at 5:58 PM, David Henningsson <
david.henningsson@canonical.com> wrote:

>
>
> On 2015-07-08 13:03, maruthi srinivas wrote:
>
>> Hi,
>>
>> I have a issue with mic jack status in Ubuntu "sound settings"  UI.  When
>> external mic is removed, UI still shows Mic.
>> When compared to HD Azalia driver, UI shouldn't show any external Mic jack
>> information, if it is removed.
>>
>> Codec driver I use reports jack status properly and uses
>> snd_soc_jack_report().
>> /proc/interrupts, /dev/input/eventX  reflects jack activity. But the same
>> is not reflected in UI.
>>
>> I want to know how pulseaudio detect jack status for drivers which follow
>> ALSA SoC architecture.
>> Does it read from any event from /dev/input/eventX ?
>>
>> Please help in understanding.
>>
>
> Has this not been unified in (very) recent kernels, so that ASoC also
> creates kcontrols, or at least has the possibility to do so?
>
> Also, out of curiousity, what machine is this?
>
> --
> David Henningsson, Canonical Ltd.
> https://launchpad.net/~diwic
>