[alsa-devel] Asterisk 1.4.17 and alsa 1.0.19 dmix plugin problem.

Jaroslav Kysela perex at perex.cz
Tue Apr 21 14:38:07 CEST 2009

On Tue, 21 Apr 2009, Nicola Mfb wrote:

> 2009/4/21 Jaroslav Kysela <perex at perex.cz>:
>> On Tue, 21 Apr 2009, Nicola Mfb wrote:
>>> 2009/4/20 Jaroslav Kysela <perex at perex.cz>:
>>>> On Mon, 20 Apr 2009, Nicola Mfb wrote:
> [...]
>>> First level documentation on www.alsa-project.org says that you may
>>> use select or poll as you need, should be this corrected?
>> Could you point me where is documentation unclear exactly?
> For example at:
> http://www.alsa-project.org/alsa-doc/alsa-lib/pcm.html
> in "event waiting routines" you see "snd_pcm_poll_descriptors can be
> used to get a file descriptor to poll or select on".
> And at: http://www.alsa-project.org/alsa-doc/alsa-lib/group___p_c_m.html#gfc99365835bb429cac8c994fa56a42d7
> the sentence "You can use output from this function as arguments for
> the select() syscall, too." may be confusing. At first look reader may
> suppose that bogus results affects only poll.

I added more notes about events mangling there. Thanks.


Jaroslav Kysela <perex at perex.cz>
Linux Kernel Sound Maintainer
ALSA Project, Red Hat, Inc.

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