[alsa-devel] [PATCH V3 1/5] sound: asoc: Adding support for STA529 Audio Codec

[Mark Brown]

On Mon, Apr 11, 2011 at 11:09:37PM +0800, Lu Guanqun wrote:
> On Mon, Apr 11, 2011 at 09:35:01PM +0800, Mark Brown wrote:

> > This is only for devices that support more than one control interface.
> > If the device only supports one control interface there is no need to
> > make anything conditional.

> Well, but there are many codecs which support only one control interface
> while having this #ifdef condition...

Usually you'll find that these are devices which support multiple
control interfaces but where the driver has only implemented one so far
for some reason.