The library has to be specifically and non-trivially ported to each
platform it supports and currently it is not ported to DragonFly.
Moveover, FreeBSD's USB stack, which uses the same API, is intended to
ported to DragonFly in the near future.
libusbx is a library that provides generic access to USB devices.
As a library, it is meant to be used by developers, to facilitate
the development of applications that communicate with USB hardware.
It is portable: Using a single cross-platform API, it provides
access to USB devices on Linux, OS X, Windows and OpenBSD.
It is user-mode: No special privilege or elevation is required for
the application to communicate with a device.
It is version-agnostic: All versions of the USB protocol, from 1.0
to 3.0 (latest), are supported.
libusbx is a fork of libusb.
