cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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hid-nti.c (1511B)

      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
     26MODULE_AUTHOR("Jonathan Klabunde Tomer <jktomer@google.com>");
     27MODULE_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 */
     32static __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
     42static const struct hid_device_id nti_devices[] = {
     43	{ HID_USB_DEVICE(USB_VENDOR_ID_NTI, USB_DEVICE_ID_USB_SUN) },
     44	{ }
     45};
     46MODULE_DEVICE_TABLE(hid, nti_devices);
     47
     48static struct hid_driver nti_driver = {
     49	.name = "nti",
     50	.id_table = nti_devices,
     51	.report_fixup = nti_usbsun_report_fixup
     52};
     53
     54module_hid_driver(nti_driver);
     55
     56MODULE_LICENSE("GPL");