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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
| commit | f4cdf7ca9a1fdcca413157df19753f388a5a224e (patch) | |
| tree | 60a31895b2446cd7fa27514e8c2843534a0de0da /drivers/hid/hid-holtek-mouse.c | |
| download | linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip | |
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab:
- v4l2-core: added ISP statistics support and per-block validation
- v4l2-core: Allow unknown HDR10 white point and luminance
- New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor
- New codec: Milos: VPU v2.0 codec support
- isp driver: gained support for Dreamchip RPPX1 ISP framework
- vsp1 driver: gained support for RZ/T2H and RZ/N2H
- Novalake driver: gained CVS support for new NVL hardware
- dvb-core: fix feed leak on failed DMX_ADD_PID
- several driver fixes, cleanups and minor improvements
* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
media: ipu-bridge: check all DMI entries when overriding sensor rotation
media: v4l2-async: avoid deleting unlinked ASC entry on link error
media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
media: intel/ipu6: fix async notifier cleanup leak on parse error
media: staging/ipu7: fix async notifier UAF on probe error path
media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
media: rcar-isp: Fix VSPX reference leaks
media: rcar-isp: Release ISPCORE resources
media: i2c: imx415: Release runtime PM reference on VBLANK error
media: i2c: imx415: Return test pattern write errors
media: renesas: vsp1: Declare index variables in for loop statement
media: renesas: vsp1: Make reset control optional to support platforms without a reset line
media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
media: nxp: imx8-isi: Add additional 32-bit RGB format support
media: nxp: imx8-isi: Add 16-bit raw Bayer format support
media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
media: nxp: imx8-isi: Correct color map between V4L2 and ISI
...
Diffstat (limited to 'drivers/hid/hid-holtek-mouse.c')
| -rw-r--r-- | drivers/hid/hid-holtek-mouse.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/drivers/hid/hid-holtek-mouse.c b/drivers/hid/hid-holtek-mouse.c new file mode 100644 index 000000000..b618a1646 --- /dev/null +++ b/drivers/hid/hid-holtek-mouse.c @@ -0,0 +1,114 @@ +// 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 const __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_DESCRIPTION("HID driver for Holtek gaming mice"); +MODULE_LICENSE("GPL"); |
