snd_hdac_dsp_prepare 618 include/sound/hdaudio.h snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format, snd_hdac_dsp_prepare 665 sound/hda/hdac_stream.c int snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format,