tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
fork
Configure Feed
Select the types of activity you want to include in your feed.
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * HID driver for Topre REALFORCE Keyboards
4 *
5 * Copyright (c) 2022 Harry Stern <harry@harrystern.net>
6 *
7 * Based on the hid-macally driver
8 */
9
10#include <linux/hid.h>
11#include <linux/module.h>
12
13#include "hid-ids.h"
14
15MODULE_AUTHOR("Harry Stern <harry@harrystern.net>");
16MODULE_DESCRIPTION("REALFORCE R2 Keyboard driver");
17MODULE_LICENSE("GPL");
18
19/*
20 * Fix the REALFORCE R2's non-boot interface's report descriptor to match the
21 * events it's actually sending. It claims to send array events but is instead
22 * sending variable events.
23 */
24static const __u8 *topre_report_fixup(struct hid_device *hdev, __u8 *rdesc,
25 unsigned int *rsize)
26{
27 if (*rsize >= 119 && rdesc[69] == 0x29 && rdesc[70] == 0xe7 &&
28 rdesc[71] == 0x81 && rdesc[72] == 0x00) {
29 hid_info(hdev,
30 "fixing up Topre REALFORCE keyboard report descriptor\n");
31 rdesc[72] = 0x02;
32 } else if (*rsize >= 106 && rdesc[28] == 0x29 && rdesc[29] == 0xe7 &&
33 rdesc[30] == 0x81 && rdesc[31] == 0x00) {
34 hid_info(hdev,
35 "fixing up Topre REALFORCE keyboard report descriptor\n");
36 rdesc[31] = 0x02;
37 }
38 return rdesc;
39}
40
41static const struct hid_device_id topre_id_table[] = {
42 { HID_USB_DEVICE(USB_VENDOR_ID_TOPRE,
43 USB_DEVICE_ID_TOPRE_REALFORCE_R2_108) },
44 { HID_USB_DEVICE(USB_VENDOR_ID_TOPRE,
45 USB_DEVICE_ID_TOPRE_REALFORCE_R2_87) },
46 { HID_USB_DEVICE(USB_VENDOR_ID_TOPRE,
47 USB_DEVICE_ID_TOPRE_REALFORCE_R3S_87) },
48 { }
49};
50MODULE_DEVICE_TABLE(hid, topre_id_table);
51
52static struct hid_driver topre_driver = {
53 .name = "topre",
54 .id_table = topre_id_table,
55 .report_fixup = topre_report_fixup,
56};
57
58module_hid_driver(topre_driver);