C# Definition:

enum USB_DEVICE_SPEED : byte
{
   UsbLowSpeed,
   UsbFullSpeed,
   UsbHighSpeed
}

VB Definition:

Enum USB_DEVICE_SPEED
   TODO
End Enum

Notes:

Defined as a UCHAR (or byte)

typedef enum _USB_DEVICE_SPEED {
   UsbLowSpeed = 0,
   UsbFullSpeed,
   UsbHighSpeed
} USB_DEVICE_SPEED;