drivers/hid/hid-dell.c

   1 /*
   2  *  HID driver for some dell "special" devices
   3  *
   4  *  Copyright (c) 1999 Andreas Gal
   5  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
   6  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
   7  *  Copyright (c) 2006-2007 Jiri Kosina
   8  *  Copyright (c) 2007 Paul Walmsley
   9  *  Copyright (c) 2008 Jiri Slaby
  10  */
  11
  12 /*
  13  * This program is free software; you can redistribute it and/or modify it
  14  * under the terms of the GNU General Public License as published by the Free
  15  * Software Foundation; either version 2 of the License, or (at your option)
  16  * any later version.
  17  */
  18
  19 #include <linux/device.h>
  20 #include <linux/hid.h>
  21 #include <linux/module.h>
  22
  23 #include "hid-ids.h"
  24
  25 static int dell_probe(struct hid_device *hdev, const struct hid_device_id *id)
  26 {
  27         int ret;
  28
  29         ret = hid_parse(hdev);
  30         if (ret) {
  31                 dev_err(&hdev->dev, "parse failed\n");
  32                 goto err_free;
  33         }
  34
  35         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
  36         if (ret) {
  37                 dev_err(&hdev->dev, "hw start failed\n");
  38                 goto err_free;
  39         }
  40
  41         usbhid_set_leds(hdev);
  42
  43         return 0;
  44 err_free:
  45         return ret;
  46 }
  47
  48 static const struct hid_device_id dell_devices[] = {
  49         { HID_USB_DEVICE(USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_W7658) },
  50         { HID_USB_DEVICE(USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_SK8115) },
  51         { }
  52 };
  53 MODULE_DEVICE_TABLE(hid, dell_devices);
  54
  55 static struct hid_driver dell_driver = {
  56         .name = "dell",
  57         .id_table = dell_devices,
  58         .probe = dell_probe,
  59 };
  60
  61 static int dell_init(void)
  62 {
  63         return hid_register_driver(&dell_driver);
  64 }
  65
  66 static void dell_exit(void)
  67 {
  68         hid_unregister_driver(&dell_driver);
  69 }
  70
  71 module_init(dell_init);
  72 module_exit(dell_exit);
  73 MODULE_LICENSE("GPL");
  74
  75 HID_COMPAT_LOAD_DRIVER(dell);