usb_anchor_check_wakeup
surely_empty = usb_anchor_check_wakeup(anchor);
if (usb_anchor_check_wakeup(anchor))
surely_empty = usb_anchor_check_wakeup(anchor);
surely_empty = usb_anchor_check_wakeup(anchor);
if (usb_anchor_check_wakeup(anchor))
usb_anchor_check_wakeup(anchor),