1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  *  Copyright (c) 1999-2000 Vojtech Pavlik
4  *
5  *  Sponsored by SuSE
6  */
7 /*
8  *
9  * Should you need to contact me, the author, you can do so either by
10  * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
11  * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
12  */
13 #ifndef _HIDDEV_H
14 #define _HIDDEV_H
15 
16 #include <uapi/linux/hiddev.h>
17 
18 
19 /*
20  * In-kernel definitions.
21  */
22 
23 struct hiddev {
24 	int minor;
25 	int exist;
26 	int open;
27 	struct mutex existancelock;
28 	wait_queue_head_t wait;
29 	struct hid_device *hid;
30 	struct list_head list;
31 	spinlock_t list_lock;
32 	bool initialized;
33 };
34 
35 struct hid_device;
36 struct hid_usage;
37 struct hid_field;
38 struct hid_report;
39 
40 #ifdef CONFIG_USB_HIDDEV
41 int hiddev_connect(struct hid_device *hid, unsigned int force);
42 void hiddev_disconnect(struct hid_device *);
43 void hiddev_hid_event(struct hid_device *hid, struct hid_field *field,
44 		      struct hid_usage *usage, __s32 value);
45 void hiddev_report_event(struct hid_device *hid, struct hid_report *report);
46 #else
hiddev_connect(struct hid_device * hid,unsigned int force)47 static inline int hiddev_connect(struct hid_device *hid,
48 		unsigned int force)
49 { return -1; }
hiddev_disconnect(struct hid_device * hid)50 static inline void hiddev_disconnect(struct hid_device *hid) { }
hiddev_hid_event(struct hid_device * hid,struct hid_field * field,struct hid_usage * usage,__s32 value)51 static inline void hiddev_hid_event(struct hid_device *hid, struct hid_field *field,
52 		      struct hid_usage *usage, __s32 value) { }
hiddev_report_event(struct hid_device * hid,struct hid_report * report)53 static inline void hiddev_report_event(struct hid_device *hid, struct hid_report *report) { }
54 #endif
55 
56 #endif
57