int configure_usb_device(struct usb_s *cntl, int lowspeed);
struct usb_ctrlrequest;
int send_default_control(u32 endp, const struct usb_ctrlrequest *req
int configure_usb_device(struct usb_s *cntl, int lowspeed);
struct usb_ctrlrequest;
int send_default_control(u32 endp, const struct usb_ctrlrequest *req