Re: [alsa-devel] [PATCH] Wrong latency in pulseaudio plugin breaks Adobe Flash Player

Philip Spencer wrote:

3. What should happen?

       (a) The call returns immediately, since there's lots of room
           in the buffer.

       (b) The call returns after one I/O period's worth of data has
           been drained from the buffer.

(a)

If the correct answer is (a) (ALSA's current behaviour), then is there any mechanism for an app to achieve (b) -- get woken up after one I/O period's worth of data have been drained (other than just doing some infinite loop of sleeping then checking snd_pcm_avail periodically)?

Adjust avail_min (but note that wakeups happen only at period boundaries).

Regards, Clemens