[alsa-devel] POLLIN and POLLOUT event in pcm io plugins

Pharaoh . pharaoh137 at gmail.com
Tue Feb 26 03:22:16 CET 2008


The structure  snd_pcm_ioplug has following members:

int poll_fd; /**< poll file descriptor */
unsigned int poll_events; /**< poll events */

and the associated events are POLLIN and POLLOUT, I suppose. I am
unable to understand how
these fields are getting used. There are many other plugins which dont
use this. What is the
significance of these fields?


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