On Tue, 21 Apr 2009, Nicola Mfb wrote:
2009/4/20 Jaroslav Kysela <perex@xxxxxxxx>:
On Mon, 20 Apr 2009, Nicola Mfb wrote:
[...]
Asterisk does not use snd_pcm_poll_descriptors_revents to translate events
returned from poll to correct poll event. Also, only file descriptor number
from snd_pcm_poll_descriptors() - asterisk should handle correctly returned
poll events as well.
See chan_alsa.c - readdev / writedev variables and sound_thread().
Jaroslav
Hi Jaroslav!
thanks for quick reply and hints!
I finally understand the inverted POLLIN/POLLOUT in dmix. As a quick
check I added writedev to fds set and it worked, now I'll able to
write a patch using poll and demangling revents...
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?
Thanks,
Jaroslav
-----
Jaroslav Kysela <perex@xxxxxxxx>
Linux Kernel Sound Maintainer
ALSA Project, Red Hat, Inc.
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