HIDAPI is a multi-platform library which allows an application to interface
with USB and Bluetooth HID-Class devices on Windows, Linux, and Mac OS X.
On Windows, a DLL is built. On other platforms (and optionally on Windows),
the single source file can simply be dropped into a target application.
HIDAPI has four back-ends:
* Windows (using hid.dll)
* Linux/hidraw (using the Kernel's hidraw driver)
* Linux/libusb (using libusb-1.0)
* Mac (using IOHidManager)
This package includes only the libusb backend.
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