>> 2. http://wiibrew.org/wiki/Logitech_USB_steering_wheel > > Sure, but please don't take it like I have some inside knowledge of > Logitech FF implementation. I've been given few bits of useful > information, the rest I figured out from sniffed USB communication. Of course, we're all in the same boat of trying to figure it out. Our only help is that Engineers are lazy and often reuse stuff they've done before. > It looks like the stiffness coeff actually > wraps around, because 0 = no stiffness, 7 = max stiffness, 8 = low > stiffness, 15 = max > stiffness. It'd be interesting to see if you can observe the same behavior > on the Wii wheel. Yes the Wii Wheel only does 0-7 and then loops too... I actually meant to quantify the force produced and purchased a torque meter, but its range wasn't low enough to be useful so I took it back. I think I can do something with a 'luggage scale' pulling at a tangent to the wheel so will give that a try. My reverse engineer technique had a python-hid script so that I could throw packets directly at the wheel to produce specific force setups. I need to port this to python-libusb (as python-hid is dead), but that should be relatively simple and can forward off list to anyone who wants a copy. > > As for the other FF effects, I guess these are things like "rumble" etc. > I'm planning to look into it more when I'll have some extra free time. If you figure codes out, I'd love to try them against my Wheel. I did have a PS3 Driving Force Wireless, but fried it's micro whilst I was hooking the BusPirate up to it. This would work under Windows and playback various effects in test mode as you pushed buttons - if anybody can grab some USB logs of this I can attempt to parse them for the codes.... Simon -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
