diff --git a/hardware/vc4/example_vc4-hdmi.conf b/hardware/vc4/example_vc4-hdmi.conf
index 9b1c1d6..027804a 100644
--- a/hardware/vc4/example_vc4-hdmi.conf
+++ b/hardware/vc4/example_vc4-hdmi.conf
@@ -1,8 +1,38 @@
+#
 # Configuration for the VC4-HDMI sound card using software IEC958
 # subframe conversion
+#
 
-<confdir:pcm/hdmi.conf>
-vc4-hdmi.pcm.hdmi.0 {
+<confdir:pcm/front.conf>
+
+vc4-hdmi.pcm.front.0 {
+	@args [ CARD ]
+	@args.CARD {
+		type string
+	}
+	type hw
+	card $CARD
+}
+
+# default with dmix
+vc4-hdmi.pcm.default {
+	@args [ CARD ]
+	@args.CARD {
+		type string
+	}
+	type asym
+	playback.pcm {
+		type plug
+		slave.pcm {
+			@func concat
+			strings [ "dmix:" $CARD ]
+		}
+	}
+}
+
+<confdir:pcm/iec958.conf>
+
+vc4-hdmi.pcm.iec958.0 {
 	@args [ CARD AES0 AES1 AES2 AES3 ]
 	@args.CARD {
 		type string
@@ -18,60 +48,17 @@ vc4-hdmi.pcm.hdmi.0 {
 	}
 	@args.AES3 {
 		type integer
-		default 0x01	# IEC958_AES3_CON_FS_NOTID
 	}
 	type iec958
 	slave {
 		format IEC958_SUBFRAME_LE
 		pcm {
-			type hooks
+			type plug
 			slave.pcm {
 				type hw
 				card $CARD
-				device 0
-			}
-			hooks.0 {
-				type ctl_elems
-				hook_args [
-				{
-					name "IEC958 Playback Default"
-					interface PCM
-					optional true
-					lock true
-					preserve true
-					value [ $AES0 $AES1 $AES2 $AES3 ]
-				}
-				]
 			}
 		}
 	}
 	status [ $AES0 $AES1 $AES2 $AES3 ]
-	hdmi_mode true
-}
-
-# default with plug
-vc4-hdmi.pcm.default {
-	@args [ CARD ]
-	@args.CARD {
-		type string
-	}
-	type plug
-	slave.pcm {
-		type softvol
-		slave.pcm {
-			@func concat
-			strings [
-				"hdmi:"
-				"CARD=" $CARD ","
-				"AES0=0x00,"	# IEC958_AES0_CON_EMPHASIS_NONE
-				"AES1=0x82,"	# IEC958_AES1_CON_ORIGINAL | IEC958_AES1_CON_PCM_CODER
-				"AES2=0x00,"	# IEC958_AES2_CON_SOURCE_UNSPEC | IEC958_AES2_CON_CHANNEL_UNSPEC
-				"AES3=0x01"	# IEC958_AES3_CON_FS_NOTID
-			]
-		}
-		control {
-			name "PCM Playback Volume"
-			card $CARD
-		}
-	}
 }