usb_hub_find_child
udev = usb_hub_find_child(fsm->otg->host->root_hub, 1);
udev = usb_hub_find_child(fsm->otg->host->root_hub, 1);
udev = usb_hub_find_child(hcd->self.root_hub, port);
EXPORT_SYMBOL_GPL(usb_hub_find_child);
udev = usb_hub_find_child(hcd->self.root_hub, port_index + 1);
udev = usb_hub_find_child(hcd->self.root_hub, port_index + 1);
extern struct usb_device *usb_hub_find_child(struct usb_device *hdev,
for (port1 = 1, child = usb_hub_find_child(hdev, port1); \
child = usb_hub_find_child(hdev, ++port1)) \