/* copy callback for halfduplex mode */ static int snd_rme32_playback_copy(struct snd_pcm_substream *substream, int channel, /* not used (interleaved data) */ snd_pcm_uframes_t pos, void __user *src, snd_pcm_uframes_t count) { struct rme32 *rme32 = snd_pcm_substream_chip(substream); count <<= rme32->playback_frlog; pos <<= rme32->playback_frlog; if (copy_from_user_toio(rme32->iobase + RME32_IO_DATA_BUFFER + pos, src, count)) return -EFAULT; return 0; }
static int snd_nm256_playback_copy(struct snd_pcm_substream *substream, int channel, /* not used (interleaved data) */ snd_pcm_uframes_t pos, void __user *src, snd_pcm_uframes_t count) { struct snd_pcm_runtime *runtime = substream->runtime; struct nm256_stream *s = runtime->private_data; count = frames_to_bytes(runtime, count); pos = frames_to_bytes(runtime, pos); if (copy_from_user_toio(s->bufptr + pos, src, count)) return -EFAULT; return 0; }