Index: uspace/lib/c/include/device/hw_res_parsed.h
===================================================================
--- uspace/lib/c/include/device/hw_res_parsed.h	(revision 9904eb90403c954baeba44936b6c146c62a3563d)
+++ uspace/lib/c/include/device/hw_res_parsed.h	(revision c5cbc1b77fecac0b1484597580975b90e17ad5b1)
@@ -139,5 +139,6 @@
 }
 
-extern int hw_res_list_parse(hw_resource_list_t *, hw_res_list_parsed_t *, int);
+extern int hw_res_list_parse(
+    const hw_resource_list_t *, hw_res_list_parsed_t *, int);
 extern int hw_res_get_list_parsed(async_sess_t *, hw_res_list_parsed_t *, int);
 
Index: uspace/lib/c/include/ipc/dev_iface.h
===================================================================
--- uspace/lib/c/include/ipc/dev_iface.h	(revision 9904eb90403c954baeba44936b6c146c62a3563d)
+++ uspace/lib/c/include/ipc/dev_iface.h	(revision c5cbc1b77fecac0b1484597580975b90e17ad5b1)
@@ -36,4 +36,10 @@
 typedef enum {
 	HW_RES_DEV_IFACE = 0,
+
+	/** Audio device mixer interface */
+	AUDIO_MIXER_IFACE,
+	/** Audio device pcm buffer interface */
+	AUDIO_PCM_BUFFER_IFACE,
+
 	/** Character device interface */
 	CHAR_DEV_IFACE,