Automatic Linux Wii guitar remapping using evsieve

This is built with SteamOS as its primary consumer. Specifics will differ per distro. I develop in an Arch Linux container using Distrobox.

• Rust
• libudev (in core/systemd-libs on Arch Linux)
• evsieve
  • libevdev (in libevdev on Arch Linux)
• pkg-config (in pkgconf on Arch Linux)

sudo pacman -S rust systemd-libs libevdev pkgconf

This is tested with a Wii MotionPlus Wiimote, and a Guitar Hero World Tour guitar. It should work with the other Guitar Hero Wii guitars (which have a slot for a Wiimote), and other Wiimotes, as long as both are recognised by the Linux kernel, though they have not been tested.

Provided in the etc folder are an example udev rule and systemd service to automatically run Roadii when a supported Wii guitar controller is connected. This presumes you are using SteamOS, adapting to other Linux systems is left as an exercise for the reader.

1. Install roadii and evsieve executables to /home/deck/bin
2. Copy etc/systemd/system/[email protected] to /etc/systemd/system, and etc/udev/rules.d/99-roadii.rules to /etc/udev/rules.d.
3. Reload the udev rules with sudo udevadm control --reload

Now you're ready to connect your Wii guitar via Bluetooth!

With the udev rules and systemd service configured, the guitar will appear as several devices; ignore any which mention Nintendo, as evsieve has taken exclusive access to them - the one you care about now is simply called "Wiitar".

It's configured to match a PlayStation 3 guitar controller as closely as possible, providing a reasonble mapping for both navigating SteamOS, emulators, and your game of choice.

• Only one connected Wii guitar controller is supported