On Fri, Dec 17, 2021 at 08:00:10AM +0100, Thorsten Leemhuis wrote:

Hi, this is your Linux kernel regression tracker speaking.

I noticed a bugreport from Tomasz C. (CCed) that sounds a lot like a
regression between v5.15.7..v5.15.8 and likely better dealt with by email:

To quote from: https://bugzilla.kernel.org/show_bug.cgi?id=215341

quoted

After updating kernel from 5.15.7 to 5.15.8 on ArchLinux distribution, Holtek USB mouse stopped working.
Exact model:
04d9:a067 Holtek Semiconductor, Inc. USB Gaming Mouse

The dmesg output for this device from kernel version 5.15.8:

[    2.501958] usb 2-1.2.3: new full-speed USB device number 6 using ehci-pci
[    2.624369] usb 2-1.2.3: New USB device found, idVendor=04d9, idProduct=a067, bcdDevice= 1.16
[    2.624376] usb 2-1.2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    2.624379] usb 2-1.2.3: Product: USB Gaming Mouse
[    2.624382] usb 2-1.2.3: Manufacturer: Holtek

After disconnecting and connecting the USB:

[   71.976731] usb 2-1.2.3: USB disconnect, device number 6
[   75.013021] usb 2-1.2.3: new full-speed USB device number 8 using ehci-pci
[   75.135865] usb 2-1.2.3: New USB device found, idVendor=04d9, idProduct=a067, bcdDevice= 1.16
[   75.135873] usb 2-1.2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[   75.135877] usb 2-1.2.3: Product: USB Gaming Mouse
[   75.135880] usb 2-1.2.3: Manufacturer: Holtek


On kernel version 5.15.7:

[    2.280515] usb 2-1.2.3: new full-speed USB device number 6 using ehci-pci
[    2.379777] usb 2-1.2.3: New USB device found, idVendor=04d9, idProduct=a067, bcdDevice= 1.16
[    2.379784] usb 2-1.2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    2.379787] usb 2-1.2.3: Product: USB Gaming Mouse
[    2.379790] usb 2-1.2.3: Manufacturer: Holtek
[    2.398578] input: Holtek USB Gaming Mouse as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2.3/2-1.2.3:1.0/0003:04D9:A067.0005/input/input11
[    2.450977] holtek_mouse 0003:04D9:A067.0005: input,hidraw4: USB HID v1.10 Keyboard [Holtek USB Gaming Mouse] on usb-0000:00:1d.0-1.2.3/input0
[    2.451013] holtek_mouse 0003:04D9:A067.0006: Fixing up report descriptor
[    2.452189] input: Holtek USB Gaming Mouse as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2.3/2-1.2.3:1.1/0003:04D9:A067.0006/input/input12
[    2.468510] usb 2-1.2.4: new high-speed USB device number 7 using ehci-pci
[    2.503913] holtek_mouse 0003:04D9:A067.0006: input,hiddev96,hidraw5: USB HID v1.10 Mouse [Holtek USB Gaming Mouse] on usb-0000:00:1d.0-1.2.3/input1
[    2.504105] holtek_mouse 0003:04D9:A067.0007: hiddev97,hidraw6: USB HID v1.10 Device [Holtek USB Gaming Mouse] on usb-0000:00:1d.0-1.2.3/input2

Rolling back the kernel to version 5.15.7 solves the problem.

Ah, this looks like my HID changes probably broke something here :(

If the person reporting this could run 'git bisect' between these two
kernel versions, to find the offending patch, that would be great!

thanks,

greg k-h