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c6f1363abb
Previously, only the type value was settable. The proto value is used internally for choosing the right drivers, so we should expose it. The other values make sense to expose as well. Signed-off-by: Vicki Pfau <vi@endrift.com> Link: https://patch.msgid.link/20260522015040.3953472-2-vi@endrift.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
49 lines
1.6 KiB
C
49 lines
1.6 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 Paul <thatslyude@gmail.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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USERIO_CMD_SET_PORT_EXTRA = 3,
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USERIO_CMD_SET_PORT_ID = 4,
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USERIO_CMD_SET_PORT_PROTO = 5,
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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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