Determine the speed of a USB Device

Question

Hello,

I want to determine the speed of a USB-Device. I also need to determine the vendor and the product-ID of the device.

Can anyone introduce me how to do this?

Thanks,

Ralf

Answer 1

Hello,

You can use WMI to do that, here is an example.

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Regards,

Eyal Shilony

Answer 2

I think I can't use WMI, because I want to know if the usb port can use lowspeed, fullspeed or highspeed. I haven't found a property at WMI, that gives me this information

Regards,

Ralf

Answer 3

What about NegotiatedSpeed in the Win32_USBControllerDevice class?

Answer 4

Download the DDK.  Ask further questions in the Windows Hardware WDK and Driver Development forum.

Answer 5

Hi reden1,

  Welcome to MSDN Forum Support.

  Based on the conversation listed below, I make clear your requirement is to implement usb speed changing between  lowspeed, fullspeed or highspeed. I agree with JohnWein's suggestion to post its similar question at  Windows Hardware WDK and Driver Development forum.

  Sincerely,

  Jason Wang

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Jason Wang [MSFT]
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