MAX_LEGACY_SERIAL_PORTS
if (want_index >= 0 && want_index < MAX_LEGACY_SERIAL_PORTS)
if (index >= MAX_LEGACY_SERIAL_PORTS)
if (legacy_serial_count < MAX_LEGACY_SERIAL_PORTS) {
legacy_serial_ports[MAX_LEGACY_SERIAL_PORTS+1];
} legacy_serial_infos[MAX_LEGACY_SERIAL_PORTS];