Copyright © 2006-2009 Simon Thum
Copyright © 2008-2012 Kristian Høgsberg
Copyright © 2010-2012 Intel Corporation
Copyright © 2010-2011 Benjamin Franzke
Copyright © 2011-2012 Collabora, Ltd.
Copyright © 2013-2014 Jonas Ådahl
Copyright © 2013-2015 Red Hat, Inc.

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

libinput ships a copy of the GPL-licensed Linux kernel's linux/input.h
header file. [1] This does not make libinput GPL.
This copy is provided to provide consistent behavior regardless which kernel
version libinput is compiled against. The header is used during compilation
only, libinput does not link against GPL libraries.

[1] https://gitlab.freedesktop.org/libinput/libinput/blob/main/include/linux/input.h