Reading HID Input

Hi,

I'm trying to determine how to read HID input from a connected peripheral? I'd like to use a custom controller as a method of input but need to read the HID input directly as Unity and Unreal don't support HID devices natively.

If there's some good documentation or tutorials, it would be good to know. Seems quite a tricky area to approach. There's some suggestion that Oculus provides some sort of way of supporting this?

Thanks,