SNDRV_PCM_TSTAMP_NONE  990 sound/core/oss/pcm_oss.c 	sw_params->tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
SNDRV_PCM_TSTAMP_NONE  432 sound/core/pcm_native.c 	runtime->tstamp_mode = SNDRV_PCM_TSTAMP_NONE;