hid-cougar.c (03ab8e6297acd1bc0eedaa050e2a1635c576fd11) hid-cougar.c (a6e9c391d45b5865b61e569146304cff72821a5d)
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * HID driver for Cougar 500k Gaming Keyboard
4 *
5 * Copyright (c) 2018 Daniel M. Lambea <dmlambea@gmail.com>
6 */
7
8#include <linux/hid.h>

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101}
102
103/*
104 * Constant-friendly rdesc fixup for mouse interface
105 */
106static __u8 *cougar_report_fixup(struct hid_device *hdev, __u8 *rdesc,
107 unsigned int *rsize)
108{
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * HID driver for Cougar 500k Gaming Keyboard
4 *
5 * Copyright (c) 2018 Daniel M. Lambea <dmlambea@gmail.com>
6 */
7
8#include <linux/hid.h>

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101}
102
103/*
104 * Constant-friendly rdesc fixup for mouse interface
105 */
106static __u8 *cougar_report_fixup(struct hid_device *hdev, __u8 *rdesc,
107 unsigned int *rsize)
108{
109 if (rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
109 if (*rsize >= 117 && rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
110 (rdesc[115] | rdesc[116] << 8) >= HID_MAX_USAGES) {
111 hid_info(hdev,
112 "usage count exceeds max: fixing up report descriptor\n");
113 rdesc[115] = ((HID_MAX_USAGES-1) & 0xff);
114 rdesc[116] = ((HID_MAX_USAGES-1) >> 8);
115 }
116 return rdesc;
117}

--- 224 unchanged lines hidden --- 		110 (rdesc[115] | rdesc[116] << 8) >= HID_MAX_USAGES) {
111 hid_info(hdev,
112 "usage count exceeds max: fixing up report descriptor\n");
113 rdesc[115] = ((HID_MAX_USAGES-1) & 0xff);
114 rdesc[116] = ((HID_MAX_USAGES-1) >> 8);
115 }
116 return rdesc;
117}

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