[alsa-devel] [PATCH 1/1] HDA - Add Independent Headphone for all models of ad1988/ad1989

[Takashi Iwai]

At Fri, 23 Sep 2011 19:33:38 +0800,
Raymond Yau wrote:
> 
> - Add "AD198x Headphone" playback device for independent headphone playback
>   while playing 7.1 surround using rear panel audio jacks.
> 
> - Remove "6stack-dig-fp" model since "Headphone Playback Volume" control using
>   DAC0 instead of DAC1 (HDA_FRONT) was already added to all models.
> 
> - Add "Independent HP" switch to enable/disable this playback device.
>   When the switch is OFF, headphone use "copy front" mode to get the front
>   channel as the green jack.
>   When the switch is ON, you can play stereo sound through "AD198x Headphone"
>   device to headphone while playing 7.1 surround sound through "AD198x Analog"
>   device.
>   The switch cannot be changed when either "AD198x Headphone" or "AD198X Analog"
>   is open.

Applied now.  Thanks.


Takashi