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Commit 41de326e authored by Christian Ohm's avatar Christian Ohm Committed by Jiri Kosina
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HID: Add driver for Holtek gaming mouse 04d9:a067 



This mouse is sold as Sharkoon Drakonia and Perixx MX-2000 and reports a
too high usage maximum and logical maximum. This driver fixes the report
descriptor so those values don't exceed HID_MAX_USAGES.

Signed-off-by: default avatarChristian Ohm <chr.ohm@gmx.net>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent f755407d

drivers/hid/Kconfig

+1 −0
Original line number Original line Diff line number Diff line
@@ -231,6 +231,7 @@ config HID_HOLTEK 
	Support for Holtek based devices:

	Support for Holtek based devices:

	  - Holtek On Line Grip based game controller

	  - Holtek On Line Grip based game controller

	  - Trust GXT 18 Gaming Keyboard

	  - Trust GXT 18 Gaming Keyboard

	  - Sharkoon Drakonia / Perixx MX-2000 gaming mice





config HOLTEK_FF

config HOLTEK_FF

	bool "Holtek On Line Grip force feedback support"

	bool "Holtek On Line Grip force feedback support"

drivers/hid/Makefile

+1 −0
Original line number Original line Diff line number Diff line
@@ -51,6 +51,7 @@ obj-$(CONFIG_HID_ELECOM) += hid-elecom.o 
obj-$(CONFIG_HID_EZKEY)		+= hid-ezkey.o

obj-$(CONFIG_HID_EZKEY)		+= hid-ezkey.o

obj-$(CONFIG_HID_GYRATION)	+= hid-gyration.o

obj-$(CONFIG_HID_GYRATION)	+= hid-gyration.o

obj-$(CONFIG_HID_HOLTEK)	+= hid-holtek-kbd.o

obj-$(CONFIG_HID_HOLTEK)	+= hid-holtek-kbd.o

obj-$(CONFIG_HID_HOLTEK)	+= hid-holtek-mouse.o

obj-$(CONFIG_HID_HOLTEK)	+= hid-holtekff.o

obj-$(CONFIG_HID_HOLTEK)	+= hid-holtekff.o

obj-$(CONFIG_HID_HYPERV_MOUSE)	+= hid-hyperv.o

obj-$(CONFIG_HID_HYPERV_MOUSE)	+= hid-hyperv.o

obj-$(CONFIG_HID_ICADE)		+= hid-icade.o

obj-$(CONFIG_HID_ICADE)		+= hid-icade.o

drivers/hid/hid-holtek-mouse.c

0 → 100644
+72 −0
Original line number Original line Diff line number Diff line 
/*

 * HID driver for Holtek gaming mice

 * Copyright (c) 2013 Christian Ohm

 * Heavily inspired by various other HID drivers that adjust the report

 * descriptor.

*/



/*

 * 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/hid.h>

#include <linux/module.h>

#include <linux/usb.h>



#include "hid-ids.h"



/*

 * The report descriptor of some Holtek based gaming mice specifies an

 * excessively large number of consumer usages (2^15), which is more than

 * HID_MAX_USAGES. This prevents proper parsing of the report descriptor.

 *

 * This driver fixes the report descriptor for USB ID 04d9:a067, sold as

 * Sharkoon Drakonia and Perixx MX-2000.

 */



static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,

		unsigned int *rsize)

{

	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);



	if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {

		/* Change usage maximum and logical maximum from 0x7fff to

		 * 0x2fff, so they don't exceed HID_MAX_USAGES */

		if (*rsize >= 122 && rdesc[115] == 0xff && rdesc[116] == 0x7f

				&& rdesc[120] == 0xff && rdesc[121] == 0x7f) {

			hid_info(hdev, "Fixing up report descriptor\n");

			rdesc[116] = rdesc[121] = 0x2f;

		}

	}

	return rdesc;

}



static const struct hid_device_id holtek_mouse_devices[] = {

	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,

			USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },

	{ }

};

MODULE_DEVICE_TABLE(hid, holtek_mouse_devices);



static struct hid_driver holtek_mouse_driver = {

	.name = "holtek_mouse",

	.id_table = holtek_mouse_devices,

	.report_fixup = holtek_mouse_report_fixup,

};



static int __init holtek_mouse_init(void)

{

	return hid_register_driver(&holtek_mouse_driver);

}



static void __exit holtek_mouse_exit(void)

{

	hid_unregister_driver(&holtek_mouse_driver);

}



module_exit(holtek_mouse_exit);

module_init(holtek_mouse_init);

MODULE_LICENSE("GPL");

drivers/hid/hid-ids.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -440,6 +440,7 @@ 




#define USB_VENDOR_ID_HOLTEK_ALT		0x04d9

#define USB_VENDOR_ID_HOLTEK_ALT		0x04d9

#define USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD	0xa055

#define USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD	0xa055

#define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067	0xa067





#define USB_VENDOR_ID_IMATION		0x0718

#define USB_VENDOR_ID_IMATION		0x0718

#define USB_DEVICE_ID_DISC_STAKKA	0xd000

#define USB_DEVICE_ID_DISC_STAKKA	0xd000