Logitech-Marble-Labwc

A configuration utility to enable scroll wheel emulation and custom button remapping for the Logitech Trackman Marble (T-BC21) trackball in the labwc Wayland compositor.

Features

• Interactive Configuration: Choose from 3 button mapping profiles.
• Scroll Emulation: Hold the designated small button and spin the trackball to scroll vertically or horizontally.
• Middle Click Mapping: Map the other small button to a dedicated Middle Click (simulating a scroll wheel click) for easy tab opening and pasting.
• Auto Configuration: Automatically detects and updates your ~/.config/labwc/rc.xml file, backing up your existing configuration beforehand.
• System-wide integration: Automates the setup of necessary hardware database (udev hwdb) rules for middle-click emulation.

Button Profiles

1. Double Scroll (Default): Both small buttons act as scroll emulation triggers (original behavior).
2. Scroll / Middle Click: The left small button enables scrolling; the right small button acts as a dedicated Middle Click.
3. Middle Click / Scroll: The left small button acts as a dedicated Middle Click; the right small button enables scrolling.

Installation

Option 1: Debian Package (Pi/Ubuntu/Debian)

Download the latest .deb file from the Releases page and install it:

sudo apt update
sudo apt install ./logitech-marble-labwc_1.1.2_all.deb

Once installed, run the configuration utility:

logitech-marble-labwc

Note: If you select a middle-click option (Option 2 or 3), the utility will request root (sudo) permissions to configure the hardware button mapping.

Option 2: Run directly

1. Clone the repository:

   git clone https://github.com/ldl805/Logitech-Marble-Labwc.git
   cd Logitech-Marble-Labwc

2. Run the installer:

   python3 install.py

License

MIT License