Found the answer where I have to use this:
setuppacket.RequestType = CByte(Hex2Dec("80"))
setuppacket.Request = 6
setuppacket.Value = CUShort(CInt(Hex2Dec("200")))
setuppacket.Index = CUShort(0)
setuppacket.Length = CUShort(255)
success = WinUsb_ControlTransfer(myDevInfo.winUsbHandle, setuppacket, buffer, CUInt(buffer.Length), transfered, IntPtr.Zero)
From USB 2.0: A request for a configuration descriptor returns the configuration descriptor, all interface descriptors, and endpoint descriptors for all of the interfaces in a single request.