System: CM3 detachable Chromebook Battery or AC: Both Model: CM3000 Frequency of occurrence: Always Reset OS: Chome OS Screenshot or video: ======================== Detailed description：Model railroaders have used laptops to control their home or club layouts for years. A well known and used Open software is JMRI - JAVA Model Railroad Interface. The connection is using Windows, MAC or Linux with a USB device. The NCE USB device uses a CP210x serial device made by Silicon Labs but the Linux (Crotini) is not allowing the device. The "Manage USB devices" in Settings only offers "HAMMER" which I found to mean the dock devices. This is a popular device for micro controllers used in schools so I am wondering why it is not allowed. Has anyone else found this to be allowed ?