I am attempting to communicate with a communications device class (CDC) USB Device. NI VISA is displaying COM ports that don't exist.
Windows Device Manager displays two COM ports: COM3 and COM4. These are correct. NI VISA in LabVIEW displays: COM3, COM4, and COM4). Sometimes VISA will show ASRL5 and ASRL6 as well. This does not match what shows up in Windows Device Manager. How the hell are the COM ports populated in VISA and why are they wrong!?