src_channel 136 sound/core/oss/pcm_plugin.h int snd_pcm_area_copy(const struct snd_pcm_channel_area *src_channel, src_channel 39 sound/core/oss/route.c static inline void copy_area(const struct snd_pcm_plugin_channel *src_channel, src_channel 44 sound/core/oss/route.c snd_pcm_area_copy(&src_channel->area, 0, &dst_channel->area, 0, frames, format);