buffmem_desc      619 include/uapi/linux/soundcard.h #define SNDCTL_DSP_MAPINBUF		_SIOR ('P', 19, buffmem_desc)
buffmem_desc      620 include/uapi/linux/soundcard.h #define SNDCTL_DSP_MAPOUTBUF		_SIOR ('P', 20, buffmem_desc)
buffmem_desc     2276 sound/core/oss/pcm_oss.c static int snd_pcm_oss_get_mapbuf(struct snd_pcm_oss_file *pcm_oss_file, int stream, struct buffmem_desc __user * _info)
buffmem_desc     2691 sound/core/oss/pcm_oss.c 			(struct buffmem_desc __user *) arg);