[alsa-devel] [patch][saa7134] do not change mute state for capturing audio

Stas Sergeev stsp at list.ru
Wed Jul 20 12:45:59 CEST 2011

20.07.2011 14:32, Mauro Carvalho Chehab wrote:
> I won't keep discussing something that won't be merged, as it will
> cause regressions.
Please explain what regressions it will make!
I am asking that question over and over again, and
every time you either ignore it, or refer to an apps
that use v4l2 ioctls, which are unaffected.
I wonder why you don't want to explain what regressions
do you have in mind...

> If the application is starting streaming, audio should be expected on
> devices
> where the audio output is internally wired with the capture input.
> This seems to be the case of your device. There's nothing that can be
> done to fix a bad hardware design or the lack of enough information
> from the device manufacturer.
Well, until you explain the exact breakage of my proposal,
I won't trust this. :)

> I suspect, however, that not changing the GPIO's is a very bad idea, and
> it will actually break audio for devices with external GPIO-based input
> switches, but, as this version was already done, it might be useful for some
> tests. A version 3 will follow shortly.
I'll test at a week-end whatever we'll have to that date.

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