drivers/hid/hid-input-quirks.c

   1 /*
   2  *  HID-input usage mapping quirks
   3  *
   4  *  This is used to handle HID-input mappings for devices violating
   5  *  HUT 1.12 specification.
   6  *
   7  * Copyright (c) 2007-2008 Jiri Kosina
   8  */
   9
  10 /*
  11  * This program is free software; you can redistribute it and/or modify it
  12  * under the terms of the GNU General Public License as published by the Free
  13  * Software Foundation; either version 2 of the License
  14  */
  15
  16 #include <linux/input.h>
  17 #include <linux/hid.h>
  18
  19 static const struct hid_input_blacklist {
  20         __u16 idVendor;
  21         __u16 idProduct;
  22         int (*quirk)(struct hid_usage *, struct hid_input *, unsigned long **,
  23                         int *);
  24 } hid_input_blacklist[] = {
  25         { 0, 0, NULL }
  26 };
  27
  28 int hidinput_mapping_quirks(struct hid_usage *usage,
  29                 struct hid_input *hi, unsigned long **bit, int *max)
  30 {
  31         struct hid_device *device = input_get_drvdata(hi->input);
  32         int i = 0;
  33
  34         while (hid_input_blacklist[i].quirk) {
  35                 if (hid_input_blacklist[i].idVendor == device->vendor &&
  36                                 hid_input_blacklist[i].idProduct == device->product)
  37                         return hid_input_blacklist[i].quirk(usage, hi, bit,
  38                                         max);
  39                 i++;
  40         }
  41         return 0;
  42 }
  43
  44 int hidinput_event_quirks(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
  45 {
  46         return 0;
  47 }
  48
  49