Added pcm.dmix definition

src/conf/alsa.conf

@@ -176,6 +176,30 @@ pcm.plug {
 	slave.pcm $SLAVE
 }
 
+pcm.dmix {
+	@args [ SLAVE FORMAT RATE ]
+	@args.SLAVE {
+		type string
+		default "hw:0,0"
+	}
+	@args.FORMAT {
+		type string
+		default S16_LE
+	}
+	@args.RATE {
+		type integer
+		default 48000
+	}
+	type dmix
+	ipc_key 5678293
+	ipc_key_add_uid yes
+	slave {
+		pcm $SLAVE
+		format $FORMAT
+		rate $RATE
+	}
+}
+
 pcm.shm {
 	@args [ SOCKET PCM ]
 	@args.SOCKET {