blob: 37961c7e397d8a0dcbdb1bcd0409a2defe33bd4c [file] [log] [blame]
Andreas Hübner1e936742012-02-22 02:10:06 +01001/*
2 * HID driver for Saitek devices, currently only the PS1000 (USB gamepad).
3 * Fixes the HID report descriptor by removing a non-existent axis and
4 * clearing the constant bit on the input reports for buttons and d-pad.
5 * (This module is based on "hid-ortek".)
6 *
7 * Copyright (c) 2012 Andreas Hübner
8 */
9
10/*
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the Free
13 * Software Foundation; either version 2 of the License, or (at your option)
14 * any later version.
15 */
16
17#include <linux/device.h>
18#include <linux/hid.h>
19#include <linux/module.h>
20#include <linux/kernel.h>
21
22#include "hid-ids.h"
23
24static __u8 *saitek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
25 unsigned int *rsize)
26{
27 if (*rsize == 137 && rdesc[20] == 0x09 && rdesc[21] == 0x33
28 && rdesc[94] == 0x81 && rdesc[95] == 0x03
29 && rdesc[110] == 0x81 && rdesc[111] == 0x03) {
30
31 hid_info(hdev, "Fixing up Saitek PS1000 report descriptor\n");
32
33 /* convert spurious axis to a "noop" Logical Minimum (0) */
34 rdesc[20] = 0x15;
35 rdesc[21] = 0x00;
36
37 /* clear constant bit on buttons and d-pad */
38 rdesc[95] = 0x02;
39 rdesc[111] = 0x02;
40
41 }
42 return rdesc;
43}
44
45static const struct hid_device_id saitek_devices[] = {
46 { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000)},
47 { }
48};
49
50MODULE_DEVICE_TABLE(hid, saitek_devices);
51
52static struct hid_driver saitek_driver = {
53 .name = "saitek",
54 .id_table = saitek_devices,
55 .report_fixup = saitek_report_fixup
56};
H Hartley Sweetenf4254582012-12-17 15:28:26 -070057module_hid_driver(saitek_driver);
Andreas Hübner1e936742012-02-22 02:10:06 +010058
Andreas Hübner1e936742012-02-22 02:10:06 +010059MODULE_LICENSE("GPL");