Force feedback wheel support – status 4

I made the FFB support generic in GNU/Linux. The following wheels should be supported:

• G27
• Driving Force GT
• G25
• Momo Racing Force Feedback (tested)
• Momo Force
• Driving Force Pro
• Logitech Speed Force Wireless
• Formula Force GP (tested, the only working effect is vibration)

My current task is to make the code generic on Windows.