Skip to main content

Browse the archive

Revision 5cd8846c3b7c104135ee602ab1887f4c1de445ef authored by Linus Torvalds on 16 March 2013, 00:35:49 UTC, committed by Linus Torvalds on 16 March 2013, 00:35:49 UTC 
Merge tag 'sound-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
 
Pull sound fixes from Takashi Iwai:
 "A collection of small fixes, as expected for the middle rc:
   - A couple of fixes for potential NULL dereferences and out-of-range
     array accesses revealed by static code parsers
   - A fix for the wrong error handling detected by trinity
   - A regression fix for missing audio on some MacBooks
   - CA0132 DSP loader fixes
   - Fix for EAPD control of IDT codecs on machines w/o speaker
   - Fix a regression in the HD-audio widget list parser code
   - Workaround for the NuForce UDH-100 USB audio"

* tag 'sound-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix missing EAPD/GPIO setup for Cirrus codecs
  sound: sequencer: cap array index in seq_chn_common_event()
  ALSA: hda/ca0132 - Remove extra setting of dsp_state.
  ALSA: hda/ca0132 - Check download state of DSP.
  ALSA: hda/ca0132 - Check if dspload_image succeeded.
  ALSA: hda - Disable IDT eapd_switch if there are no internal speakers
  ALSA: hda - Fix snd_hda_get_num_raw_conns() to return a correct value
  ALSA: usb-audio: add a workaround for the NuForce UDH-100
  ALSA: asihpi - fix potential NULL pointer dereference
  ALSA: seq: Fix missing error handling in snd_seq_timer_open()
2 parent s c7f17de + 6d3073e
Raw File
hid-saitek.c 
/*
 *  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
};
module_hid_driver(saitek_driver);

MODULE_LICENSE("GPL");
back to top