include/linux/hiddev.h

   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
  47 static inline int hiddev_connect(struct hid_device *hid,
  48                 unsigned int force)
  49 { return -1; }
  50 static inline void hiddev_disconnect(struct hid_device *hid) { }
  51 static inline void hiddev_hid_event(struct hid_device *hid, struct hid_field *field,
  52                       struct hid_usage *usage, __s32 value) { }
  53 static inline void hiddev_report_event(struct hid_device *hid, struct hid_report *report) { }
  54 #endif
  55
  56 #endif