| /* |
| * HID driver for Saitek devices, currently only the PS1000 (USB gamepad). |
| * Fixes the HID report descriptor by removing a non-existent axis and |
| * clearing the constant bit on the input reports for buttons and d-pad. |
| * (This module is based on "hid-ortek".) |
| * |
| * Copyright (c) 2012 Andreas Hübner |
| */ |
| |
| /* |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the Free |
| * Software Foundation; either version 2 of the License, or (at your option) |
| * any later version. |
| */ |
| |
| #include <linux/device.h> |
| #include <linux/hid.h> |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| |
| #include "hid-ids.h" |
| |
| static __u8 *saitek_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
| unsigned int *rsize) |
| { |
| if (*rsize == 137 && rdesc[20] == 0x09 && rdesc[21] == 0x33 |
| && rdesc[94] == 0x81 && rdesc[95] == 0x03 |
| && rdesc[110] == 0x81 && rdesc[111] == 0x03) { |
| |
| hid_info(hdev, "Fixing up Saitek PS1000 report descriptor\n"); |
| |
| /* convert spurious axis to a "noop" Logical Minimum (0) */ |
| rdesc[20] = 0x15; |
| rdesc[21] = 0x00; |
| |
| /* clear constant bit on buttons and d-pad */ |
| rdesc[95] = 0x02; |
| rdesc[111] = 0x02; |
| |
| } |
| return rdesc; |
| } |
| |
| static const struct hid_device_id saitek_devices[] = { |
| { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000)}, |
| { } |
| }; |
| |
| MODULE_DEVICE_TABLE(hid, saitek_devices); |
| |
| static struct hid_driver saitek_driver = { |
| .name = "saitek", |
| .id_table = saitek_devices, |
| .report_fixup = saitek_report_fixup |
| }; |
| |
| static int __init saitek_init(void) |
| { |
| return hid_register_driver(&saitek_driver); |
| } |
| |
| static void __exit saitek_exit(void) |
| { |
| hid_unregister_driver(&saitek_driver); |
| } |
| |
| module_init(saitek_init); |
| module_exit(saitek_exit); |
| MODULE_LICENSE("GPL"); |