[alsa-devel] [PATCH] - alsa-lib/test/latency.c - print error message when playback/capture does not support two periods per buffer

print error message when playback/capture device does not support two periods per buffer

alsa-lib/test/latency does not perform real test when playback/capture devices does not support two periods per buffer and this confuse user that the sound card pass the test but in fact no test has been performed