include/linux/hidraw.h

   1 /*
   2  *  Copyright (c) 2007 Jiri Kosina
   3  */
   4 /*
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * You should have received a copy of the GNU General Public License along with
  10  * this program; if not, write to the Free Software Foundation, Inc.,
  11  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  12  */
  13 #ifndef _HIDRAW_H
  14 #define _HIDRAW_H
  15
  16 #include <uapi/linux/hidraw.h>
  17
  18
  19 struct hidraw {
  20         unsigned int minor;
  21         int exist;
  22         int open;
  23         wait_queue_head_t wait;
  24         struct hid_device *hid;
  25         struct device *dev;
  26         spinlock_t list_lock;
  27         struct list_head list;
  28 };
  29
  30 struct hidraw_report {
  31         __u8 *value;
  32         int len;
  33 };
  34
  35 struct hidraw_list {
  36         struct hidraw_report buffer[HIDRAW_BUFFER_SIZE];
  37         int head;
  38         int tail;
  39         struct fasync_struct *fasync;
  40         struct hidraw *hidraw;
  41         struct list_head node;
  42         struct mutex read_mutex;
  43 };
  44
  45 #ifdef CONFIG_HIDRAW
  46 int hidraw_init(void);
  47 void hidraw_exit(void);
  48 int hidraw_report_event(struct hid_device *, u8 *, int);
  49 int hidraw_connect(struct hid_device *);
  50 void hidraw_disconnect(struct hid_device *);
  51 #else
  52 static inline int hidraw_init(void) { return 0; }
  53 static inline void hidraw_exit(void) { }
  54 static inline int hidraw_report_event(struct hid_device *hid, u8 *data, int len) { return 0; }
  55 static inline int hidraw_connect(struct hid_device *hid) { return -1; }
  56 static inline void hidraw_disconnect(struct hid_device *hid) { }
  57 #endif
  58
  59 #endif