[alsa-devel] HDA intel, wired headset w/mic, jack mic detect

[Kevin Hilman]

Raymond Yau <superquad.vortex2 at gmail.com> writes:

> 2012/3/3, Kevin Hilman <khilman at ti.com>:
>> Raymond Yau <superquad.vortex2 at gmail.com> writes:
>>
>>> 2012/3/2, Kevin Hilman <khilman at ti.com>:
>>>
>>>
>>>>> Does your headset/mic has a TRRS (Tip, ring, ring, sleeve) connector
>>>>> instead of TRS (Tip, ring, sleeve) connector ?
>>>
>>>> Yes.  It's TRRS.
>>>
>>> Does it mean that the headset/mic is a mono mic ?
>>>
>>> Is the internal mic mono or stereo ?
>>
>> I believe it's mono.  Based on vumeter activity, and the fact that
>> changing only one slider in hda_analyzer is needed to quiet/mute the
>> mic.
>>
>
> Not sure any difference between cs4206 and cs4207
>
> It seem that you can select ADC1 and ADC2 channel mode in cs4207

> ‘00’b - ADC2 left channel is mapped to HDA left
> channel and ADC2 right channel is mapped HDA
> right channel (normal mode).
> ‘01’b - ADC2 left channel is mapped to both HDA
> left and right channels. ADC2 right channel is
> discarded (mono mode).
> ‘10’b - ADC2 right channel is mapped to both
> HDA left and right channels. ADC2 left channel is
> discarded (alternate mono mode).
> ‘11’b - ADC2 left channel is mapped to HDA right
> channel and ADC2 right channel is mapped to
> HDA left channel (channel swap mode).

Do any of the hda tools allow me to tweak this from userspace?

Kevin