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1 | /* | |
2 | * HID driver for various devices which are apparently based on the same chipset | |
3 | * from certain vendor which produces chips that contain wrong LogicalMaximum | |
4 | * value in their HID report descriptor. Currently supported devices are: | |
5 | * | |
6 | * Ortek PKB-1700 | |
7 | * Ortek WKB-2000 | |
8 | * iHome IMAC-A210S | |
9 | * Skycable wireless presenter | |
10 | * | |
11 | * Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com> | |
12 | * Copyright (c) 2011 Jiri Kosina | |
13 | */ | |
14 | ||
15 | /* | |
16 | * This program is free software; you can redistribute it and/or modify it | |
17 | * under the terms of the GNU General Public License as published by the Free | |
18 | * Software Foundation; either version 2 of the License, or (at your option) | |
19 | * any later version. | |
20 | */ | |
21 | ||
22 | #include <linux/device.h> | |
23 | #include <linux/hid.h> | |
24 | #include <linux/module.h> | |
25 | ||
26 | #include "hid-ids.h" | |
27 | ||
28 | static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc, | |
29 | unsigned int *rsize) | |
30 | { | |
31 | if (*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) { | |
32 | hid_info(hdev, "Fixing up logical maximum in report descriptor (Ortek)\n"); | |
33 | rdesc[55] = 0x92; | |
34 | } else if (*rsize >= 54 && rdesc[52] == 0x25 && rdesc[53] == 0x01) { | |
35 | hid_info(hdev, "Fixing up logical maximum in report descriptor (Skycable)\n"); | |
36 | rdesc[53] = 0x65; | |
37 | } | |
38 | return rdesc; | |
39 | } | |
40 | ||
41 | static const struct hid_device_id ortek_devices[] = { | |
42 | { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) }, | |
43 | { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) }, | |
44 | { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_IHOME_IMAC_A210S) }, | |
45 | { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) }, | |
46 | { } | |
47 | }; | |
48 | MODULE_DEVICE_TABLE(hid, ortek_devices); | |
49 | ||
50 | static struct hid_driver ortek_driver = { | |
51 | .name = "ortek", | |
52 | .id_table = ortek_devices, | |
53 | .report_fixup = ortek_report_fixup | |
54 | }; | |
55 | module_hid_driver(ortek_driver); | |
56 | ||
57 | MODULE_LICENSE("GPL"); |