[ALSA] hda-intel - Add hwdep interface

Added a hwdep interface for each codec (enabled per kconfig).
This interface can be used for reading/writing HD-audio verbs
and other purposes as future extensions.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 3 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 6809386109c8..1370e346bf34 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -24,6 +24,7 @@
 #include <sound/info.h>
 #include <sound/control.h>
 #include <sound/pcm.h>
+#include <sound/hwdep.h>
 
 /*
  * nodes
@@ -566,6 +567,8 @@ struct hda_codec {
         unsigned int spdif_status;      /* IEC958 status bits */
         unsigned short spdif_ctls;      /* SPDIF control bits */
         unsigned int spdif_in_enable;   /* SPDIF input enable? */
+
+        struct snd_hwdep *hwdep;        /* assigned hwdep device */
 };
 
 /* direction */