[alsa-devel] [PATCH 17/53] ALSA: x86: Drop unused hw_silence field

[Takashi Iwai]

On Thu, 02 Feb 2017 20:11:10 +0100,
Pierre-Louis Bossart wrote:
> 
> On 2/2/17 11:02 AM, Takashi Iwai wrote:
> > It's nowhere used.  Let's drop it.
> 
> That's one of the things I wanted to add. When you start playback
> there is a 1-2s period where the receiver is still looking at the data
> to figure out if it's PCM or compressed, and you lose those 1-2s of
> audio. The hw silence mode is a way to keep the link active.

I see.  Yes, the feature would be useful.

> But I guess we can remove first and re-add later so no objections.

Agreed.

How would it be actually implemented?  Just avoid to turn off the
audio config bits at trigger callback, etc?

Since the runtime PM will be in the same game, we'll have to cope with
it, too.


thanks,

Takashi