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

[Pharaoh .]

Hi,

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?

-pharaoh.