Re: [PATCH 1/6] media: v4l2: Add audio capture and output support

On Mon, Jul 03, 2023 at 03:12:55PM +0200, Hans Verkuil wrote:

My main concern is that these cross-subsystem drivers are a pain to
maintain. So there have to be good reasons to do this.

Also it is kind of weird to have to use the V4L2 API in userspace to
deal with a specific audio conversion. Quite unexpected.

But in the end, that's a decision I can't make.

So I wait for that feedback. Note that if the decision is made that this
can use V4L2, then there is quite a lot more that needs to be done:
documentation, new compliance tests, etc. It's adding a new API, and that
comes with additional work...

Absolutely, I agree with all of this - my impression was that the target
here would be bypass of audio streams to/from a v4l2 device, without
bouncing through an application layer.  If it's purely for audio usage
with no other tie to v4l2 then involving v4l2 does just seem like
complication.