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c#serial-portregeditdevice-manager

Not able to see connected usb device in registry

I have a device connected to a USB serial port which can be seen in device manager but not in registry.

When I use SerialPort.GetPortNames() (I am expecting to return all the connected serial ports), it is not returning all the ports from the connected device.

But after re-enabling the port I can see my desired device working and it is gone after restarting the machine.

Updating the drivers didn't help.

Solution

  • You could use the WMI Code Creator from Microsoft to build a query for Win32_SerialPort-Devices or maybe Win32_PnPEntity.

    I also got problems with the SerialPort.GetPortNames() in the past, but the Win32-classes worked just fine evertime so far.