Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.Approved by: re (implicit)Sponsored by: The FreeBSD Foundation
Style nits.
Don't unnecessarily include .mk files.
Install libusbhid, and use it instead of libusb.MFC after: 6 days
Add the usbhidctl utility, from NetBSD, by Lennart Augusst