drivers/hid/hid-nti.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  USB HID quirks support for Network Technologies, Inc. "USB-SUN" USB
   4  *  adapter for pre-USB Sun keyboards
   5  *
   6  *  Copyright (c) 2011 Google, Inc.
   7  *
   8  * Based on HID apple driver by
   9  *  Copyright (c) 1999 Andreas Gal
  10  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  11  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  12  *  Copyright (c) 2006-2007 Jiri Kosina
  13  *  Copyright (c) 2008 Jiri Slaby <jirislaby@gmail.com>
  14  */
  15
  16 /*
  17  */
  18
  19 #include <linux/device.h>
  20 #include <linux/input.h>
  21 #include <linux/hid.h>
  22 #include <linux/module.h>
  23
  24 #include "hid-ids.h"
  25
  26 MODULE_AUTHOR("Jonathan Klabunde Tomer <jktomer@google.com>");
  27 MODULE_DESCRIPTION("HID driver for Network Technologies USB-SUN keyboard adapter");
  28
  29 /*
  30  * NTI Sun keyboard adapter has wrong logical maximum in report descriptor
  31  */
  32 static const __u8 *nti_usbsun_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  33                 unsigned int *rsize)
  34 {
  35         if (*rsize >= 60 && rdesc[53] == 0x65 && rdesc[59] == 0x65) {
  36                 hid_info(hdev, "fixing up NTI USB-SUN keyboard adapter report descriptor\n");
  37                 rdesc[53] = rdesc[59] = 0xe7;
  38         }
  39         return rdesc;
  40 }
  41
  42 static const struct hid_device_id nti_devices[] = {
  43         { HID_USB_DEVICE(USB_VENDOR_ID_NTI, USB_DEVICE_ID_USB_SUN) },
  44         { }
  45 };
  46 MODULE_DEVICE_TABLE(hid, nti_devices);
  47
  48 static struct hid_driver nti_driver = {
  49         .name = "nti",
  50         .id_table = nti_devices,
  51         .report_fixup = nti_usbsun_report_fixup
  52 };
  53
  54 module_hid_driver(nti_driver);
  55
  56 MODULE_LICENSE("GPL");