usb_gadget_disconnect
usb_gadget_disconnect(isp->phy->otg->gadget);
usb_gadget_disconnect(isp->phy->otg->gadget);
usb_gadget_disconnect(&ci->gadget);
EXPORT_SYMBOL_GPL(usb_gadget_disconnect);
DEFINE_EVENT(udc_log_gadget, usb_gadget_disconnect,
int usb_gadget_disconnect(struct usb_gadget *gadget);