Kernel module for overclocking the WMO1.1a on XHCI controllers, based on HannesMan driver for Nintendo Wii U/Mayflash GameCube adapter.
The default overclock is from 125 Hz to 1000 Hz. The WMO1.1a should be able to overclock to 1000hz with no issues but your mileage may vary, if your particular mouse can't handle it try going for 500hz.
You should have already tried the official instructions on ArchWiki before needing this, if you have a native EHCI controller then you may be better off using that.
Decide if trying to read usbhid mousepoll option or making another one (see Discussions)
Decide if making the VID:PID variables a list or array, receive new ones as a kernel parameter or try targetting all mouses asking usbhid somehow. (see discussions)
Use make to build wmo_oc.ko and sudo insmod wmo_oc.ko to load the module into the running kernel.
If you want to unload the module (revert the increased polling rate) use sudo rmmod wmo_oc.ko. You can also use make clean to clean up any files created by make.
If you get an error saying "building multiple external modules is not supported" it's because you have a space somewhere in the path to the gcadapter-oc-kmod directory.
GNU Make can't handle spaces in filenames so move the directory to a path without spaces (example: /home/falco/My Games/wmo-oc-kmod -> /home/falco/wmo-oc-kmod).
A PKGBUILD is available for Arch Linux in packaging/. This package uses DKMS to install and auto-update the module when the kernel is updated. A configuration file is added to load the module automatically on boot.
Prepackaged versions can be found under "Releases".
For other distros copying the module to an appropriate directory under /usr/lib/modules and creating a file called /usr/lib/modules-load.d/wmo-oc.conf with the contents wmo_oc should be enough to load the module automatically. You'll need to rebuild the module and copy every time you upgrade your kernel so I don't recommend it!
Polling rate is set according to the bInterval value in the USB endpoint descriptor. The value sets the polling rate in milliseconds, for example: an interval value of 4 equals 250 Hz.
You can change the rate by using the kernel parameter wmo_oc.rate=n (if installed), passing the rate to insmod wmo_oc.ko rate=n or going into /sys/module/wmo_oc/parameters and using echo n > rate to change the value
On a terminal, use the lsusb command It should give you an output like this
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 005: ID 1b1c:0c0b Corsair Lighting Node Pro
Bus 003 Device 003: ID 258a:0016 BY Tech Usb Gaming Keyboard
Bus 003 Device 002: ID 05e3:0610 Genesys Logic, Inc. Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 045e:0040 Microsoft Corp. Wheel Mouse Optical
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 3.0 root hub
Note that in my case, I own a WMO1.1a, which is this one
Bus 001 Device 002: ID 045e:0040 Microsoft Corp. Wheel Mouse Optical
The VID:PID values are 045e:0040. 045e is the Vendor ID and 0040 is the Product ID. If your mouse has different values this won't work unless you edit the code.
For this, you can go to wmo_oc.c and edit lines 6 and 7 to match your VID:PID values, after that you can build like normal.