[alsa-devel] [PATCH 1/1] ymfpci - enable rear device and dup4ch control when ac97 support 4 channels

[Raymond Yau]

2011/9/20 Takashi Iwai <tiwai at suse.de>:
> At Mon, 19 Sep 2011 21:51:11 +0800,
> Raymond Yau wrote:
>>
>> ymfpci - enable rear device and dup4ch control when ac97 support 4 channels
>
> You mean _only_ when ac97 supports, right?
> A bit more patch description would be helpful.
> There are more free spaces in the changelog area :)
>


http://thread.gmane.org/gmane.linux.alsa.devel/89391

I want to remove "rear" device from my mf724f since it only has three
jacks, (i.e. blue , pink and green) and stac9704

It seem that those ymf7xx does not support I2S Output

According to 744 and 754 datasheet , it support multiple ac97 but
snd-ymfpci does not support secodary ac97 , so the patch only check
the sdac bit the primary ac97 codec