forked from Minki/linux
93a2207c25
An overlook from the previous commit: we don't even parse or start the
device, meaning that the device is not presented to user space.
Fixes: 93020953d0 ("HID: check for valid USB device for many HID drivers")
Cc: stable@vger.kernel.org
Link: https://bugs.archlinux.org/task/73048
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215341
Link: https://lore.kernel.org/r/e4efbf13-bd8d-0370-629b-6c80c0044b15@leemhuis.info/
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
114 lines
3.3 KiB
C
114 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* HID driver for Holtek gaming mice
|
|
* Copyright (c) 2013 Christian Ohm
|
|
* Heavily inspired by various other HID drivers that adjust the report
|
|
* descriptor.
|
|
*/
|
|
|
|
/*
|
|
*/
|
|
|
|
#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
|
|
* - USB ID 04d9:a04a, sold as Tracer Sniper TRM-503, NOVA Gaming Slider X200
|
|
* and Zalman ZM-GM1
|
|
* - USB ID 04d9:a081, sold as SHARKOON DarkGlider Gaming mouse
|
|
* - USB ID 04d9:a072, sold as LEETGION Hellion Gaming Mouse
|
|
* - USB ID 04d9:a0c2, sold as ETEKCITY Scroll T-140 Gaming Mouse
|
|
*/
|
|
|
|
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 */
|
|
switch (hdev->product) {
|
|
case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067:
|
|
case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072:
|
|
case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A0C2:
|
|
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;
|
|
}
|
|
break;
|
|
case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A:
|
|
case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070:
|
|
case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081:
|
|
if (*rsize >= 113 && rdesc[106] == 0xff && rdesc[107] == 0x7f
|
|
&& rdesc[111] == 0xff && rdesc[112] == 0x7f) {
|
|
hid_info(hdev, "Fixing up report descriptor\n");
|
|
rdesc[107] = rdesc[112] = 0x2f;
|
|
}
|
|
break;
|
|
}
|
|
|
|
}
|
|
return rdesc;
|
|
}
|
|
|
|
static int holtek_mouse_probe(struct hid_device *hdev,
|
|
const struct hid_device_id *id)
|
|
{
|
|
int ret;
|
|
|
|
if (!hid_is_usb(hdev))
|
|
return -EINVAL;
|
|
|
|
ret = hid_parse(hdev);
|
|
if (ret) {
|
|
hid_err(hdev, "hid parse failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
|
|
if (ret) {
|
|
hid_err(hdev, "hw start failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct hid_device_id holtek_mouse_devices[] = {
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
|
|
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
|
|
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070) },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
|
|
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
|
|
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
|
|
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
|
|
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A0C2) },
|
|
{ }
|
|
};
|
|
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,
|
|
.probe = holtek_mouse_probe,
|
|
};
|
|
|
|
module_hid_driver(holtek_mouse_driver);
|
|
MODULE_LICENSE("GPL");
|