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6a012686 BM |
1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* | |
3 | * HID driver for Semitek keyboards | |
4 | * | |
5 | * Copyright (c) 2021 Benjamin Moody | |
6 | */ | |
7 | ||
8 | #include <linux/device.h> | |
9 | #include <linux/hid.h> | |
10 | #include <linux/module.h> | |
11 | ||
12 | #include "hid-ids.h" | |
13 | ||
14 | static __u8 *semitek_report_fixup(struct hid_device *hdev, __u8 *rdesc, | |
15 | unsigned int *rsize) | |
16 | { | |
17 | /* In the report descriptor for interface 2, fix the incorrect | |
18 | description of report ID 0x04 (the report contains a | |
19 | bitmask, not an array of keycodes.) */ | |
20 | if (*rsize == 0xcb && rdesc[0x83] == 0x81 && rdesc[0x84] == 0x00) { | |
21 | hid_info(hdev, "fixing up Semitek report descriptor\n"); | |
22 | rdesc[0x84] = 0x02; | |
23 | } | |
24 | return rdesc; | |
25 | } | |
26 | ||
27 | static const struct hid_device_id semitek_devices[] = { | |
28 | { HID_USB_DEVICE(USB_VENDOR_ID_SEMITEK, USB_DEVICE_ID_SEMITEK_KEYBOARD) }, | |
29 | { } | |
30 | }; | |
31 | MODULE_DEVICE_TABLE(hid, semitek_devices); | |
32 | ||
33 | static struct hid_driver semitek_driver = { | |
34 | .name = "semitek", | |
35 | .id_table = semitek_devices, | |
36 | .report_fixup = semitek_report_fixup, | |
37 | }; | |
38 | module_hid_driver(semitek_driver); | |
39 | ||
40 | MODULE_LICENSE("GPL"); |