for (port = 0; port < KBDC_AUX_MUX_NUM_PORTS; port++) {
VLOG(3, (LOG_DEBUG, "aux_mux: ping port %d\n", port));
set_active_aux_mux_port(kbdc, port);
if (enable_aux_dev(kbdc) && disable_aux_dev(kbdc)) {
DELAY(50000);
if (0) {
active_ports_count++;
active_ports_mask |= 1 << port;
}