[alsa-devel] [PATCH] compress: add support for gapless playback

[Mark Brown]

On Wed, Feb 13, 2013 at 08:37:15AM +0100, Takashi Iwai wrote:
> Vinod Koul wrote:
> > On Wed, Feb 13, 2013 at 07:23:32AM +0100, Takashi Iwai wrote:

> > > But this makes difficult to know which parameter is unavailable in
> > > this kernel, as already mentioned in the thread.  You need to add
> > > another ioctl or add a mask in the struct.  Or, take back to single
> > > key/value pairs, so user can see the -ENOENT or such error for
> > > non-existing parameters.

> > Right, but we have the API version.

> But what if a driver doesn't support a particular metadata?
> Or would you mandate for every driver to support all metadata?

I tend to agree with Takashi here, it seems better if we can have
drivers able to implement only a subset of features especially if the
API does get extended.
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