[alsa-devel] [RFC] Remove non-exist device and control from snd-ymfpci

[Clemens Ladisch]

Raymond Yau wrote:
> Is it feasible to remove playback device 2 (rear) and control (e.g. 4
> ch Duplication) by checking sdac bit of ac97 registers to know that it
> does not support 4 channels ?

Yes.

> How about device 1 spdif since this card does not have spdif connector ?

How could this be detected?

> what is the difference of capture device 0 and device 3 ?

The default device can mix lots of sources together; the AC'97 device is
a direct input from the AC'97 codec.


Regards,
Clemens