Get Number of USB Ports using C#

Question

1.50/5 (2 votes)

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C#

WPF

I want to get total no of all the available USB ports in my PC using programming in C#?

Posted 23-Mar-14 20:53pm

Sharma Shailendra

Updated 6-Jan-21 20:12pm

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Mehdi Gholam 24-Mar-14 3:00am

Why?

R0bb 21-Nov-22 5:19am

Why not?

[no name] 24-Mar-14 3:15am

Agree with above and what do you mean by "available". Has no meaning.

Bernhard Hiller 24-Mar-14 3:22am

I'd try Windows Management Instrumentation (WMI), but I haven't taken such a close look at it to be sure about USB ports...

2 solutions

Solution 3

SELECT * FROM Win32_portconnector where ExternalReferenceDesignator like '%USB%'

this will give list of all USB ports

ManagementObjectSearcher search= new ManagementObjectSearcher("\\root\\wmi", "SELECT * FROM Win32_portconnector where ExternalReferenceDesignator like '%USB%'");

foreach (ManagementObject managementObject in searcher.Get())
            {

                string s = managementObject["ExternalReferenceDesignator"].ToString();
                string s1 = managementObject["InternalReferenceDesignator"].ToString();
}

Posted 6-Jan-21 20:12pm

Member 15038878

Updated 6-Jan-21 20:43pm

v4

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purvapatel · Accepted Answer · 2014-03-24T01:23:00

Try this

SQL

Well, after studying several forums, I discovered that the com port associated to the USB/RS485 adapter is listed if I run the query SELECT * FROM Win32_PnPEntity .

But I really don't understand why the serial port of the arduino is shown by a query and the other port with the other query.... I mean, those are both uSB<->serial adapters!

OR

CSS

Maybe you can use a C# to USB device library as described here:
Are there any good C# to usb device libraries?

From the above answer: For getting a list of devices connected:
http://code.google.com/p/usb-devices-list/