HUBD_CHILD_ZAP
hubd->h_port_state[port] |= HUBD_CHILD_ZAP;
hubd->h_port_state[port] &= ~HUBD_CHILD_ZAP;
if (hubd->h_port_state[port] & HUBD_CHILD_ZAP) {
hubd->h_port_state[port] &= ~HUBD_CHILD_ZAP;