SNDRV_PCM_IOCTL_HW_FREE  671 sound/core/pcm_compat.c 	case SNDRV_PCM_IOCTL_HW_FREE:
SNDRV_PCM_IOCTL_HW_FREE 2933 sound/core/pcm_native.c 	case SNDRV_PCM_IOCTL_HW_FREE: