drivers/hid/hid-nti.c

   1 /*
   2  *  USB HID quirks support for Network Technologies, Inc. "USB-SUN" USB
   3  *  adapter for pre-USB Sun keyboards
   4  *
   5  *  Copyright (c) 2011 Google, Inc.
   6  *
   7  * Based on HID apple driver by
   8  *  Copyright (c) 1999 Andreas Gal
   9  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  10  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  11  *  Copyright (c) 2006-2007 Jiri Kosina
  12  *  Copyright (c) 2008 Jiri Slaby <jirislaby@gmail.com>
  13  */
  14
  15 /*
  16  * This program is free software; you can redistribute it and/or modify it
  17  * under the terms of the GNU General Public License as published by the Free
  18  * Software Foundation; either version 2 of the License, or (at your option)
  19  * any later version.
  20  */
  21
  22 #include <linux/device.h>
  23 #include <linux/input.h>
  24 #include <linux/hid.h>
  25 #include <linux/module.h>
  26
  27 #include "hid-ids.h"
  28
  29 MODULE_AUTHOR("Jonathan Klabunde Tomer <jktomer@google.com>");
  30 MODULE_DESCRIPTION("HID driver for Network Technologies USB-SUN keyboard adapter");
  31
  32 /*
  33  * NTI Sun keyboard adapter has wrong logical maximum in report descriptor
  34  */
  35 static __u8 *nti_usbsun_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  36                 unsigned int *rsize)
  37 {
  38         if (*rsize >= 60 && rdesc[53] == 0x65 && rdesc[59] == 0x65) {
  39                 hid_info(hdev, "fixing up NTI USB-SUN keyboard adapter report descriptor\n");
  40                 rdesc[53] = rdesc[59] = 0xe7;
  41         }
  42         return rdesc;
  43 }
  44
  45 static const struct hid_device_id nti_devices[] = {
  46         { HID_USB_DEVICE(USB_VENDOR_ID_NTI, USB_DEVICE_ID_USB_SUN) },
  47         { }
  48 };
  49 MODULE_DEVICE_TABLE(hid, nti_devices);
  50
  51 static struct hid_driver nti_driver = {
  52         .name = "nti",
  53         .id_table = nti_devices,
  54         .report_fixup = nti_usbsun_report_fixup
  55 };
  56
  57 module_hid_driver(nti_driver);
  58
  59 MODULE_LICENSE("GPL");