Setupdienumdeviceinterfaces com port

Simply including the appropriate header files is not enough. Also, in the header files such as setupapi. We need the interface GUID to get the device path. Getting the device path is a multi-step process, which requires calling several of the SetupDixxx functions provided by setupapi. The SetupDiGetClassDevs function returns a handle to a device information set that contains requested device information elements for a local computer.

Windows uses GUIDs to identify things. Tuesday, March 6, AM. Tuesday, March 13, PM. Is there a WMI class that can control network cards? Man thats harsh.. Same problem here. I oughtta tell you guys, it is so much easier under Linux platform :- struggling as well on the very same issue. Sunday, March 18, PM. Exact same problem here, no apparent solution. Please post one if you find it. Wednesday, April 25, AM. I found what I was doing wrong.

Here is an example that works: 1 Plug in an HID compliant device that has an interface the first one I used did not! For example The Present flag will only show devices plugged in actively. My question now, is if you want to know the friendly name of the modem why not use the same call but specify the Modem Guid instead of the COM Port?

I'll have to research which property thats is tied to in the API. The registry key is at. Looking closer at the sample code. That wouldn't provide a way of getting the friendly name of the device.

I believe instead you would want the device instance. From what I've read, the Device Interface is used to as a way to get the device path which can be used to write to it. One thing I did to test your code was try it again the Disk Device Interface. I made a few changes to get it to work on my system and it still isn't quite done. Also, in the INF, you may have to add the AddInterface directive to associate your driver with the correct interface.

You say your device is present and accessible, but are you accessing your device directly or are you accessing a port by name and number COMn:. I have a WinModem that is connected to my audio driver.

I have no serial port, not even a simulated one. I decided to punt on this and to do away with the dependency on the SetupDi functions.

I have the feeling that this is what the device manager does. In case anyone is interested, my code fragment can be seen below:. Stack Overflow for Teams — Collaborate and share knowledge with a private group. You need your try.. AntonBazhal, Thanks. I just edited the code, moving the try finally block.

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