Linux force feedback wheel support

[Kada]

Hello,
it's good to hear, that someone is currently working on native FF support in Linux. Stenyak pointed me to this discussion from the Live for Speed forum, thank you for that.

First of all, I have a basic question, which version of ff-utils do you use for testing? Is somewhere newer version than this one?

My problem with Logitech wheels under linux was, that not all axes were recognized and that the kernel set huge deadzones for the axes. I wrote a little "hack" (I wouldn't call it patch :-)) for 2.6.20, in hid-lgff.c, that adds all axes and removes deadzones.

The problem is, that the logitech wheels, that I've tested (WFF GP, red momo) doesn't report usbhid (field->usage) in standard way, as a standard hid axis. There are 4 axis: wheel, combined gas-brake, gas axis and brake axis. But only 2 are correctly reported (wheel and combined, with deadzones) and thus recognized by the hid driver. Maybe this is the problem for non-working clutch in G25 wheel as Stenyak posted on the lfsforum. (non-axis hid "usage" field reported, for the clutch)

I added usb ids for Logitech WFF GP in hid-lgff.c and hid-ff.c, but I did't get any force by "fftest". That is why I'm asking, if there is not some other newer version of ff-utils.