usb_quirk_unload
usb_quirk_unload(arg);
tsleep(usb_quirk_unload, 0, "WAIT", hz);
tsleep(usb_quirk_unload, 0, "WAIT", hz);
tsleep(usb_quirk_unload, 0, "WAIT", hz);
void usb_quirk_unload(void *);