Check connection of device through USB port

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My app is running in kiosk machine and it connect with multiple devices as printer, camera, weighing scale, barcode scanner etc through USB port.
It will check the connection of device when selected any port. Currently, I only can check which port is connected but can't identify which device it is.

What I have tried:

As the picture below there are 2 devices and they are connected to kiosk. If I select 'USB Input Device' port for touch screen and select another port for printer. How I do to check exactly 'USB Input Device' port is touch screen connected but not printer. In case 'USB Input Device' port is printer, app will be display message.

https://i.stack.imgur.com/3tzY2.png[^]

Posted 1-Feb-23 22:47pm

huynhminh97

Updated 2-Feb-23 0:24am

v3

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Chris Copeland · Answer 1 · 2023-02-02T00:24:00

Using C# you can query the PnP devices on the system by running:

C#

using (var search = new ManagementObjectSearcher(@"Select * From Win32_PnPEntity Where DeviceID Like ""USB%"""))
{
    using (var collection = search.Get())
    {
        foreach (var device in collection)
        {
            Console.WriteLine($"Device ${device.GetPropertyValue("DeviceID")}:");

            foreach (var prop in device.Properties)
                Console.WriteLine($"- ${prop.Name} = ${prop.Value}");
        }
    }
}

One of these properties is Name which generally gives a slightly more helpful identifier for the device. It's not perfect though but it could give a good starting point if you're producing dropdown lists that someone can select.