snd_compr_tstamp  121 include/sound/compress_driver.h 			struct snd_compr_tstamp *tstamp);
snd_compr_tstamp   82 include/uapi/sound/compress_offload.h 	struct snd_compr_tstamp tstamp;
snd_compr_tstamp  173 include/uapi/sound/compress_offload.h #define SNDRV_COMPRESS_TSTAMP		_IOR('C', 0x20, struct snd_compr_tstamp)