SNDRV_PCM_FORMAT_GSM 161 include/sound/pcm.h #define SNDRV_PCM_FMTBIT_GSM (1ULL << SNDRV_PCM_FORMAT_GSM) SNDRV_PCM_FORMAT_GSM 135 sound/core/pcm_misc.c [SNDRV_PCM_FORMAT_GSM] = {