SNDRV_PCM_INFO_HAS_WALL_CLOCK
if (runtime->hw.info & SNDRV_PCM_INFO_HAS_WALL_CLOCK)
SNDRV_PCM_INFO_HAS_WALL_CLOCK | /* legacy */
runtime->hw.info &= ~SNDRV_PCM_INFO_HAS_WALL_CLOCK; /* legacy */