diff --git a/sound/pci/au88x0/au8810.h b/sound/pci/au88x0/au8810.h
index 3837d2b..5d69c31 100644
--- a/sound/pci/au88x0/au8810.h
+++ b/sound/pci/au88x0/au8810.h
@@ -178,11 +178,6 @@
 #define		EN_SPDIF	0x000c0000
 
 #define VORTEX_CODEC_CHN 	0x29080
-#define VORTEX_CODEC_WRITE	0x00800000
-#define VORTEX_CODEC_ADDSHIFT 	16
-#define VORTEX_CODEC_ADDMASK	0x7f0000	/* 0x000f0000 */
-#define VORTEX_CODEC_DATSHIFT	0
-#define VORTEX_CODEC_DATMASK	0xffff
 #define VORTEX_CODEC_IO		0x29188
 
 /* SPDIF */
diff --git a/sound/pci/au88x0/au8820.h b/sound/pci/au88x0/au8820.h
index be8022e..abbe85e 100644
--- a/sound/pci/au88x0/au8820.h
+++ b/sound/pci/au88x0/au8820.h
@@ -162,11 +162,6 @@
 #define		EN_SPORT	0x00030000
 #define		EN_SPDIF	0x000c0000
 #define VORTEX_CODEC_CHN 0x11880
-#define VORTEX_CODEC_WRITE 0x00800000
-#define VORTEX_CODEC_ADDSHIFT 16
-#define VORTEX_CODEC_ADDMASK 0x7f0000	/* 0x000f0000 */
-#define VORTEX_CODEC_DATSHIFT 0
-#define VORTEX_CODEC_DATMASK 0xffff
 #define VORTEX_CODEC_IO 0x11988
 
 #define VORTEX_SPDIF_FLAGS		0x1005c	/* FIXME */
diff --git a/sound/pci/au88x0/au8830.h b/sound/pci/au88x0/au8830.h
index aa77826..04ece1b 100644
--- a/sound/pci/au88x0/au8830.h
+++ b/sound/pci/au88x0/au8830.h
@@ -194,11 +194,6 @@
 
 #define VORTEX_CODEC_CTRL 0x29184
 #define VORTEX_CODEC_IO 0x29188
-#define 	VORTEX_CODEC_WRITE 0x00800000
-#define 	VORTEX_CODEC_ADDSHIFT 16
-#define 	VORTEX_CODEC_ADDMASK 0x7f0000	/* 0x000f0000 */
-#define 	VORTEX_CODEC_DATSHIFT 0
-#define 	VORTEX_CODEC_DATMASK 0xffff
 
 #define VORTEX_CODEC_SPORTCTRL 0x2918c
 
diff --git a/sound/pci/au88x0/au88x0.h b/sound/pci/au88x0/au88x0.h
index ee1ede1..b1197cf 100644
--- a/sound/pci/au88x0/au88x0.h
+++ b/sound/pci/au88x0/au88x0.h
@@ -79,6 +79,14 @@
 #define VORTEX_RESOURCE_A3D	0x00000004
 #define VORTEX_RESOURCE_LAST	0x00000005
 
+/* codec io: VORTEX_CODEC_IO bits */
+#define VORTEX_CODEC_ID_SHIFT	24
+#define VORTEX_CODEC_WRITE	0x00800000
+#define VORTEX_CODEC_ADDSHIFT 	16
+#define VORTEX_CODEC_ADDMASK	0x7f0000
+#define VORTEX_CODEC_DATSHIFT	0
+#define VORTEX_CODEC_DATMASK	0xffff
+
 /* Check for SDAC bit in "Extended audio ID" AC97 register */
 //#define VORTEX_IS_QUAD(x) (((x)->codec == NULL) ?  0 : ((x)->codec->ext_id&0x80))
 #define VORTEX_IS_QUAD(x) ((x)->isquad)
diff --git a/sound/pci/au88x0/au88x0_core.c b/sound/pci/au88x0/au88x0_core.c
index f0eda4b..91ac4f3 100644
--- a/sound/pci/au88x0/au88x0_core.c
+++ b/sound/pci/au88x0/au88x0_core.c
@@ -2532,7 +2532,8 @@
 	hwwrite(card->mmio, VORTEX_CODEC_IO,
 		((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
 		((data << VORTEX_CODEC_DATSHIFT) & VORTEX_CODEC_DATMASK) |
-		VORTEX_CODEC_WRITE);
+		VORTEX_CODEC_WRITE |
+		(codec->num << VORTEX_CODEC_ID_SHIFT) );
 
 	/* Flush Caches. */
 	hwread(card->mmio, VORTEX_CODEC_IO);
@@ -2554,7 +2555,8 @@
 		}
 	}
 	/* set up read address */
-	read_addr = ((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK);
+	read_addr = ((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
+		(codec->num << VORTEX_CODEC_ID_SHIFT) ;
 	hwwrite(card->mmio, VORTEX_CODEC_IO, read_addr);
 
 	/* wait for address */