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fe73965d07
By allowing the drivers to return a "const *" they can constify their static report arrays. This makes it clear to driver authors that the HID core will not modify those reports and they can be reused for multiple devices. Furthermore security is slightly improved as those reports are protected against accidental or malicious modifications. [bentiss: fixup hid-cougar.c and hid-multitouch.c for latest version of the master branch] Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://patch.msgid.link/20240803-hid-const-fixup-v2-6-f53d7a7b29d8@weissschuh.net Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* USB HID quirks support for Network Technologies, Inc. "USB-SUN" USB
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* adapter for pre-USB Sun keyboards
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*
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* Copyright (c) 2011 Google, Inc.
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*
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* Based on HID apple driver by
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* Copyright (c) 1999 Andreas Gal
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* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
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* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
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* Copyright (c) 2006-2007 Jiri Kosina
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* Copyright (c) 2008 Jiri Slaby <jirislaby@gmail.com>
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*/
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/*
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*/
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#include <linux/device.h>
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#include <linux/input.h>
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#include <linux/hid.h>
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#include <linux/module.h>
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#include "hid-ids.h"
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MODULE_AUTHOR("Jonathan Klabunde Tomer <jktomer@google.com>");
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MODULE_DESCRIPTION("HID driver for Network Technologies USB-SUN keyboard adapter");
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/*
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* NTI Sun keyboard adapter has wrong logical maximum in report descriptor
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*/
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static const __u8 *nti_usbsun_report_fixup(struct hid_device *hdev, __u8 *rdesc,
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unsigned int *rsize)
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{
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if (*rsize >= 60 && rdesc[53] == 0x65 && rdesc[59] == 0x65) {
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hid_info(hdev, "fixing up NTI USB-SUN keyboard adapter report descriptor\n");
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rdesc[53] = rdesc[59] = 0xe7;
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}
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return rdesc;
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}
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static const struct hid_device_id nti_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_NTI, USB_DEVICE_ID_USB_SUN) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, nti_devices);
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static struct hid_driver nti_driver = {
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.name = "nti",
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.id_table = nti_devices,
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.report_fixup = nti_usbsun_report_fixup
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};
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module_hid_driver(nti_driver);
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MODULE_LICENSE("GPL");
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