[alsa-devel] Status of snd_pcm_rewind()

Takashi Iwai tiwai at suse.de
Mon Jan 7 15:06:58 CET 2008

At Sat, 22 Dec 2007 19:33:01 +0100,
Lennart Poettering wrote:
> Hi!
> What's the status of snd_pcm_rewind()? Is it available on all devices?

It should work on all "hw" PCM, but not via every plugin.  The
functionality is basically in the PCM core level, independent from
the lowlevel driver implementation.

dmix and dshare don't work (unimplemented).  The other plugins should
work, though.

> I assume not (at least dmix doesn't...). But I guess I can safely
> assume it is available when mmap is used? Is there any API function to
> test if it is available?

No, unfortunately.  A self-test?


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