[1/14]include: add ddk/hidclass.h

[Charles Davis]

> On Jun 25, 2015, at 9:15 AM, Aric Stewart <aric at codeweavers.com> wrote:
> @@ -0,0 +1,63 @@
[…]
> +#ifndef __HIDCLASS_H
> +#define __HIDCLASS_H
[…]
> +DEFINE_GUID (GUID_DEVINTERFACE_HID, \
> +  0x4D1E55B2L, 0xF16F, 0x11CF, 0x88, 0xCB, 0x00, 0x11, 0x11, 0x00, 0x00, 0x30);

Correct me if I’m wrong, but I think this should go outside the header guard. That way, you can usefully include this definition multiple times, and one of those times you can define INITGUID to get a real definition.

Chip