Index: uspace/drv/usbmid/usbmid.h
===================================================================
--- uspace/drv/usbmid/usbmid.h	(revision fcafa042f58415f3790c8c5c9ce158da789b4691)
+++ uspace/drv/usbmid/usbmid.h	(revision 9bc276bc317bd87d4320847c42015b0aced099d4)
@@ -37,4 +37,5 @@
 #define USBMID_H_
 
+#include <adt/list.h>
 #include <ddf/driver.h>
 #include <usb/usb.h>
@@ -49,12 +50,14 @@
 	/** Function container. */
 	ddf_fun_t *fun;
-
+	/** Interface descriptor. */
+	usb_standard_interface_descriptor_t *interface;
 	/** Interface number. */
 	int interface_no;
+	/** List link. */
+	link_t link;
 } usbmid_interface_t;
 
-usbmid_interface_t *usbmid_interface_create(ddf_fun_t *, int);
 bool usbmid_explore_device(usb_device_t *);
-int usbmid_spawn_interface_child(usb_device_t *,
+int usbmid_spawn_interface_child(usb_device_t *, usbmid_interface_t *,
     const usb_standard_device_descriptor_t *,
     const usb_standard_interface_descriptor_t *);