1 files changed, 3 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index e9f71dc0d46..f0f1943a4b2 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -298,6 +298,9 @@ enum {
 #define AC_AMPCAP_MUTE                  (1<<31)    /* mute capable */
 #define AC_AMPCAP_MUTE_SHIFT            31
 
+/* driver-specific amp-caps: using bits 24-30 */
+#define AC_AMPCAP_MIN_MUTE              (1 << 30) /* min-volume = mute */
+
 /* Connection list */
 #define AC_CLIST_LENGTH                 (0x7f<<0)
 #define AC_CLIST_LONG                   (1<<7)