diff --git a/sys/dev/sound/pci/via82c686.h b/sys/dev/sound/pci/via82c686.h
index 501da33e806..ac6750e71b0 100644
--- a/sys/dev/sound/pci/via82c686.h
+++ b/sys/dev/sound/pci/via82c686.h
@@ -51,6 +51,9 @@
 
 #define VIA_AC97STATUS		0x40
 #define		VIA_AC97STATUS_RDY	0x01
+#define		VIA_AC97STATUS_LOWPWR	0x02
+#define		VIA_AC97STATUS_2RDY	0x04
+
 #define VIA_ACLINKCTRL		0x41
 #define         VIA_ACLINK_EN		0x80     /* ac link enab */
 #define         VIA_ACLINK_NRST		0x40     /* ~(ac reset) */