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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>
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* HID driver for Aureal Cy se W-01RN USB_V3.1 devices
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*
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* Copyright (c) 2010 Franco Catrin <fcatrin@gmail.com>
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* Copyright (c) 2010 Ben Cropley <bcropley@internode.on.net>
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*
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* Based on HID sunplus 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
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*/
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#include <linux/device.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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static const __u8 *aureal_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 >= 54 && rdesc[52] == 0x25 && rdesc[53] == 0x01) {
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dev_info(&hdev->dev, "fixing Aureal Cy se W-01RN USB_V3.1 report descriptor.\n");
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rdesc[53] = 0x65;
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}
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return rdesc;
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}
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static const struct hid_device_id aureal_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, aureal_devices);
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static struct hid_driver aureal_driver = {
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.name = "aureal",
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.id_table = aureal_devices,
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.report_fixup = aureal_report_fixup,
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};
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module_hid_driver(aureal_driver);
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MODULE_DESCRIPTION("HID driver for Aureal Cy se W-01RN USB_V3.1 devices");
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MODULE_LICENSE("GPL");
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