snd_pcm_readi(),return -11,Resource temporarily unavailable

alsa-project/alsa-lib issue #259 was opened from xukawendi:

i called the function snd_pcm_readi() to capture pcm data, but the function returns -11,and the snd_strerror(-11) shows "Resource temporarily unavailable",How can I resolve this problem?

Issue URL : https://github.com/alsa-project/alsa-lib/issues/259 Repository URL: https://github.com/alsa-project/alsa-lib