HelenOS sources

hda_set_converter_ctl  668 uspace/drv/audio/hdaudio/codec.c 	rc = hda_set_converter_ctl(codec, codec->out_aw, stream->sid, 0);
hda_set_converter_ctl  689 uspace/drv/audio/hdaudio/codec.c 	rc = hda_set_converter_ctl(codec, codec->in_aw, stream->sid, 0);