linux alsa lib

Andriy Gapon avg at
Tue Apr 26 06:12:09 UTC 2011

on 22/04/2011 21:10 Andriy Gapon said the following:
> BTW, it just hit me that a reason for that could be exactly the same why native
> pulseaudio doesn't get microphone input without tweaking either.
> Maybe the same dsp mmap approach is used there, with the same result on FreeBSD.

I've checked the sources and no, it's not the case.
Alsa OSS plugin doesn't use mmap.

On the other hand, I see that we do quite heavy patching to its native version
(audio/alsa-plugins/files/patch-alsa-plugins).  It's quite possible that the
same patches (or at least a portion of them) are needed for the linux version to
fix audio recording through the plugin.

Andriy Gapon

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