drivers/hid/hid-plantronics.c

   1 /*
   2  *  Plantronics USB HID Driver
   3  *
   4  *  Copyright (c) 2014 JD Cole <jd.cole@plantronics.com>
   5  *  Copyright (c) 2014 Terry Junge <terry.junge@plantronics.com>
   6  */
   7
   8 /*
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License as published by the Free
  11  * Software Foundation; either version 2 of the License, or (at your option)
  12  * any later version.
  13  */
  14
  15 #include "hid-ids.h"
  16
  17 #include <linux/hid.h>
  18 #include <linux/module.h>
  19
  20 static int plantronics_input_mapping(struct hid_device *hdev,
  21                                      struct hid_input *hi,
  22                                      struct hid_field *field,
  23                                      struct hid_usage *usage,
  24                                      unsigned long **bit, int *max)
  25 {
  26         if (field->application == HID_CP_CONSUMERCONTROL
  27             && (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
  28                 hid_dbg(hdev, "usage: %08x (appl: %08x) - defaulted\n",
  29                          usage->hid, field->application);
  30                 return 0;
  31         }
  32
  33         hid_dbg(hdev, "usage: %08x (appl: %08x) - ignored\n",
  34                 usage->hid, field->application);
  35
  36         return -1;
  37 }
  38
  39 static int plantronics_probe(struct hid_device *hdev,
  40                              const struct hid_device_id *id)
  41 {
  42         int ret;
  43
  44         ret = hid_parse(hdev);
  45         if (ret) {
  46                 hid_err(hdev, "parse failed\n");
  47                 goto err;
  48         }
  49
  50         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
  51         if (ret) {
  52                 hid_err(hdev, "hw start failed\n");
  53                 goto err;
  54         }
  55
  56         return 0;
  57  err:
  58         return ret;
  59 }
  60
  61 static const struct hid_device_id plantronics_devices[] = {
  62         { HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) },
  63         { }
  64 };
  65 MODULE_DEVICE_TABLE(hid, plantronics_devices);
  66
  67 static struct hid_driver plantronics_driver = {
  68         .name = "plantronics",
  69         .id_table = plantronics_devices,
  70         .input_mapping = plantronics_input_mapping,
  71         .probe = plantronics_probe,
  72 };
  73 module_hid_driver(plantronics_driver);
  74
  75 MODULE_AUTHOR("JD Cole <jd.cole@plantronics.com>");
  76 MODULE_AUTHOR("Terry Junge <terry.junge@plantronics.com>");
  77 MODULE_DESCRIPTION("Plantronics USB HID Driver");
  78 MODULE_LICENSE("GPL");