SNDRV_PCM_IOCTL_PVERSION  485 sound/core/pcm_compat.c 	case SNDRV_PCM_IOCTL_PVERSION:
SNDRV_PCM_IOCTL_PVERSION 2502 sound/core/pcm_native.c 	case SNDRV_PCM_IOCTL_PVERSION: