hda_audio_ctxt
static int hda_audio_ctxt_init(struct hda_audio_ctxt *actx, const char *tname,
static int hda_audio_ctxt_start(struct hda_audio_ctxt *actx);
static int hda_audio_ctxt_stop(struct hda_audio_ctxt *actx);
struct hda_audio_ctxt actx;
struct hda_audio_ctxt *actx = NULL;
struct hda_audio_ctxt *actx = arg;
hda_audio_ctxt_init(struct hda_audio_ctxt *actx, const char *tname,
hda_audio_ctxt_start(struct hda_audio_ctxt *actx)
hda_audio_ctxt_stop(struct hda_audio_ctxt *actx)