kernel/include/linux/hiddev.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *  Copyright (c) 1999-2000 Vojtech Pavlik
 *
 *  Sponsored by SuSE
 */
/*
 * 
 * Should you need to contact me, the author, you can do so either by
 * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
 * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
 */
#ifndef _HIDDEV_H
#define _HIDDEV_H

#include <uapi/linux/hiddev.h>


/*
 * In-kernel definitions.
 */

struct hiddev {
	int minor;
	int exist;
	int open;
	struct mutex existancelock;
	wait_queue_head_t wait;
	struct hid_device *hid;
	struct list_head list;
	spinlock_t list_lock;
	bool initialized;
};

struct hid_device;
struct hid_usage;
struct hid_field;
struct hid_report;

#ifdef CONFIG_USB_HIDDEV
int hiddev_connect(struct hid_device *hid, unsigned int force);
void hiddev_disconnect(struct hid_device *);
void hiddev_hid_event(struct hid_device *hid, struct hid_field *field,
		      struct hid_usage *usage, __s32 value);
void hiddev_report_event(struct hid_device *hid, struct hid_report *report);
#else
static inline int hiddev_connect(struct hid_device *hid,
		unsigned int force)
{ return -1; }
static inline void hiddev_disconnect(struct hid_device *hid) { }
static inline void hiddev_hid_event(struct hid_device *hid, struct hid_field *field,
		      struct hid_usage *usage, __s32 value) { }
static inline void hiddev_report_event(struct hid_device *hid, struct hid_report *report) { }
#endif

#endif