Description

The LEETMOUSE kernel module enables different acceleration modes for your mouse on Linux. LEETMOUSE basically fuses the original Linux USB mouse driver code with the acceleration code-base and has been initially developed by Christopher Williams. Since the original work was in a rough state and seem to have been abandoned, this fork has been started.

Installation & Uninstallation

Preparation & Configuration

• Clone this repository, copy driver/config.sample.h to /driver/config.h and edit it in your favorite text editor. Change the defines at the top of config.h to match your desired acceleration settings. But keep in mind that, the values in the config.h have to be the long long representations of their Fixed-Point data (limitation of C compile time constants), so it might be better to just do everything from the GUI.
• Make sure, you have the required toolchains (e.g. base-devel on Arch or build-essentials on Debian) installed as well as the linux-headers for your installed kernel.

Running the GUI

Prerequisites:

• OpenGL (you most likely already have it)
• GLFW3, which can be installed via these commands:

sudo apt-get install libglfw3
sudo apt-get install libglfw3-dev

Building

To build, go to the gui directory cd gui/ and run make

Starting

Keep in mind that the program needs to be run with sudo privileges. To run, simply use sudo -E ./YeetMouseGui

Arch/Manjaro

Since the maintainer of LEETMOUSE is an Arch and Manjaro user, a PKGBUILD has been written for seamless integration into pacman.

Installation

# Create the PKGBUILD, copy associated files and run makepkg
./scripts/build_arch.sh
# Run pacman on the created package
sudo pacman -U pkg/build/leetmouse*.zst

All your mice should now be bound to this driver. They will also automatically bind to it after a reboot. If this did not work, run sudo /usr/lib/udev/leetmouse_manage bind_all

Uninstallation

sudo pacman -R leetmouse-driver-dkms

All your mice should now be bound to the generic usbhid driver again.

NixOS

Please refer to NixOS instructions.

Other distros

Other distributions’ package-managers are not yet supported and thus need a manual installation. However Debian based systems are planned. The installation is not yet very polished but eventually will become so.

Installation

Determine the current version of this module by examining the variable DKMS_VER in the Makefile. It can be e.g. 0.9.0 Run the following commands to build and install the kernel module

# Install the driver and activate the dkms module
sudo make setup_dkms && sudo make udev_install
sudo dkms install -m leetmouse-driver -v 0.9.0 # Enter the version you determined from the Makefile earlier in here

(Or you can use the built-in install script like so: sudo ./install.sh).

All your mice should now be bound to this driver. They will also automatically bind to it after a reboot. If this did not work, run sudo /usr/lib/udev/leetmouse_manage bind_all If this still does not work, there is a major problem

Uninstallation

You again need to know the version as described above for the installation

# Unbind all mice from the driver
sudo /usr/lib/udev/leetmouse_manage unbind_all
# Uninstall the driver
sudo dkms remove -m leetmouse-driver -v 0.9.0
sudo make remove_dkms && sudo make udev_uninstall

(Or you can use the built-in uninstall script like so: sudo ./uninstall.sh).

Unplug and replug your mouse or reboot to have your mice bound back to the generic usbhid.

Manual compile, insmod, bind

If you want to compile this module only for testing purposes or development, you do not need to install the whole package to your system

Compile the module, remove previously loaded modules and insert it.

make clean && make
sudo rmmod leetmouse
sudo insmod ./driver/leetmouse.ko

If you did not install the udev rules before via sudo make udev_install you need to manually bind your mouse to this driver. You can take a look at /scripts/bind.sh for an example on how to determine your mouse’s USB address for that. However using the udev rules for development is advised.

Fixed-Point Analysis

Instruction	Fixed-Point / FPU	Mop/s	ns/op	Clock cycles/op
Multiplication	Fixed-Point 64	542.905367	1.911	7.029038
	Fixed-Point 64 (128bit)	540.682695	1.913	7.012462
	FPU (double)	788.524105	1.29	4.722532
Division	Fixed-Point 64 (Precise)	91.446419	11.299	41.756461
	Fixed-Point 64 (128bit)	203.819151	5.097	18.797924
	FPU (double)	188.035704	5.392	19.879064
Exponent	Fixed-Point 64	66.550845	15.561	57.525454
	Fixed-Point 64 (Fast)	92.775366	11.285	41.702182
	FPU (double)	116.396443	8.741	32.276506
Sqrt	Fixed-Point 64 (Precise)	18.059895	57.307	211.97892
	Fixed-Point 64	64.558792	15.675	57.956097
	FPU (double)	133.474534	7.9	29.179384
Pow	Fixed-Point 64	31.81294	32.221	119.111214
	Fixed-Point 64 (Fast)	40.524527	26.043	96.310556
	FPU (double)	77.804544	17.113	63.251944
Log	Fixed-Point 64	51.117073	21.033	77.768302
	Fixed-Point 64 (Fast)	61.341951	16.638	61.497848
	FPU (double)	53.326065	19.876	73.491065

More in-depth performance and precision analysis can be found here.

TODOS

AUR package release	Once it reaches version 1.0 (basically after Im happy with it)
dpkg package for Debian based systems	After AUR release
Feature parity with Povohats driver and later even RawAccel	When I find time - Definitely after above milestones
Optimize some Fixed-Point functions	Done
GUI to configure the acceleration parameters	Done
Move to Fixed-Point arithmetic	Done
External interface for dynamically pushing acceleration parameters	Done
Fixing the only vertical scrolling bug	Done
Easier installation & binding	Done
DKMS support	Done
PKGBUILD for Arch based systems	Done