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e2be04c7f9
Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be. This makes it hard for
compliance tools to determine the correct license.
Update these files with an SPDX license identifier. The identifier was
chosen based on the license information in the file.
GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:
NOTE! This copyright does *not* cover user programs that use kernel
services by normal system calls - this is merely considered normal use
of the kernel, and does *not* fall under the heading of "derived work".
This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.
Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier. The format
is:
((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)
SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text. The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne. See the previous patch in this series for the
methodology of how this patch was researched.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
/* SPDX-License-Identifier: LGPL-2.0+ WITH Linux-syscall-note */
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/*
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* userio: virtual serio device support
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* Copyright (C) 2015 Red Hat
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* Copyright (C) 2015 Lyude (Stephen Chandler Paul) <cpaul@redhat.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* This is the public header used for user-space communication with the userio
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* driver. __attribute__((__packed__)) is used for all structs to keep ABI
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* compatibility between all architectures.
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*/
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#ifndef _USERIO_H
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#define _USERIO_H
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#include <linux/types.h>
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enum userio_cmd_type {
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USERIO_CMD_REGISTER = 0,
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USERIO_CMD_SET_PORT_TYPE = 1,
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USERIO_CMD_SEND_INTERRUPT = 2
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};
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/*
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* userio Commands
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* All commands sent to /dev/userio are encoded using this structure. The type
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* field should contain a USERIO_CMD* value that indicates what kind of command
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* is being sent to userio. The data field should contain the accompanying
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* argument for the command, if there is one.
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*/
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struct userio_cmd {
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__u8 type;
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__u8 data;
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} __attribute__((__packed__));
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#endif /* !_USERIO_H */
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