Linux force feedback wheel support

[thelusiv]

Kada, I'm glad you're making progress with your wheel. Thanks for the feedback (no pun intended) about force feedback.

You can add a ff_gain option to your VDrift.config under the [ joystick ] section that will make the forces you feel on the steering wheel stronger or weaker, depending on the number you use. I think maybe by default it's 2.0, so the forces are doubled, but you could set it back to 1.0 and it might feel better for you. 2.0 felt pretty good on my Logitech Momo Racing Force wheel (the black one). I'll add an option for the ff_gain setting to the Options -> Controls -> Joystick menu soon.

As for inverting the forces, again I just set it up so that it felt right on my wheel - when I turn right it pushes the wheel left, and so on. Is this really backwards on your wheel? Is that common for some wheels to take opposite values from others? If so, I can add another option "ff_invert" or something that can be on or off, and this will probably solve the problem.