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Hope you can help me on this.
I have a serial device, this device will then be connected to a USB-Serial converter, then the converter will be connected to my PC’s usb port. The system will add another COM port to the Device Manager.
My question is, how can I possibly map the COM port number to the converter in C#? I can successfully enumerate available COM port in the system by doing the SerialPort.GetPortNames(), but not sure what COM port number this converter have.
thanks
ar
You can usually get some decent info out of a WMI query, although it requires the device driver to cooperate. Most do afaik. Run a query on the Win32_SerialPort class. You can use the WMI Code Creator tool to experiment with the query and auto-generate the C# code you need.
Don’t count on being able to auto-select the device. You’ll need a config option to allow the user to select the port. You can display the info you got from the query to help her pick the right one. Or ask her to unplug the device and plug it back in, the added COM port should be the right one.