C# Signature:

[DllImport("winusb.dll", SetLastError=true)]
static extern Boolean WinUsb_QueryDeviceInformation(
     SafeFileHandle InterfaceHandle,
     UInt32 InformationType,
     ref UInt32 BufferLength,
     byte[] Buffer);

VB Signature:

Declare Function WinUsb_QueryDeviceInformation Lib "winusb.dll" (TODO) As TODO

User-Defined Types:

const ULONG DEVICE_SPEED = 1;

Alternative Managed API:

Do you know one? Please contribute it!

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

UInt32 bufferLength = 100;
byte[] buffer = new byte[bufferLength];
var success = WinUsb_QueryDeviceInformation(_winUsbHandle, DEVICE_SPEED, ref bufferLength, buffer);

Please edit this page!

Do you have...

• helpful tips or sample code to share for using this API in managed code?
• corrections to the existing content?
• variations of the signature you want to share?
• additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).