Category Archives: troubleshooting

FTDI USB Serial Port Enumeration on Windows

FTDI is one of the two major manufacturers of USB UART chips, and they provide regularly updated and reliable drivers. Most devices I’ve used don’t bother to implement a custom VID/PID, so you can just use the drivers directly from FTDI. When you connect a large number of USB serial ports, it is often difficult to determine […]

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Debugging USB Device Installation on Windows

Recently, I ran into a problem trying to install a USB keyboard on Windows XP at work. Given that HID devices always just work with Windows, I wasn’t quite sure how to go about troubleshooting such a ridiculous problem. My first step was to investigate the problem, repeating the process to see what went wrong. […]

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