Version
3.5-134
Branch
master
Date
6 years, 10 months ago
Windows x64 Windows x86 Mac OS X
Commit
4d6056f146252afe70d18effc10fd66d3f1c44aa
Change author
skidau
Change description
Added GC Steering Wheel emulation.

To set it up, change the Port 1 controller to "Steering Wheel" under the GameCube tab.  This will tell the game that you have a force feedback steering wheel connected.
In the Gamecube Pad Settings, change the Rumble Motor to "Constant".
Configure the controls:

Main Stick Left/Right = Steer Left/Right
Main Stick Up = Accelerate
Main Stick Down = Brake

Thanks to ulao for the device communications info.