extern void usb_disable_endpoint (struct usb_device *dev, unsigned int epaddr);
extern void usb_disable_interface (struct usb_device *dev,
struct usb_interface *intf);
+extern void usb_release_interface_cache(struct kref *ref);
extern void usb_disable_device (struct usb_device *dev, int skip_ep0);
extern void usb_enable_endpoint (struct usb_device *dev,