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);