[alsa-devel] Vanilla Blocked I/O probs

Hi, I am calling

rc = snd_pcm_readi (handle, buffer, MAX_LEN)

but rc is always 4 short of MAX_LEN (1020 instead of 1024). I thought that it would just block until MAX_LEN frames were available. This is really doing my head in, and any help would be appreciated.

Cheers