libusb is no longer recommended for use with the ps3 control.....
++++++++edit: the quote below is now obselete-just use motioninjoy.com/download for PS3 PC install.Yeah, I've tried playing around with the full/negative/positive settings. After setting them to "positive", the car accelerates and brakes only when the pedal is half pressed. When it is set to "negative", the car accelerates and brakes at 1/3 and 2/3.
by the way, if you want the authentic psx experience, search for "libusb-win32-filter-bin-0.1.12.1" to install a usb driver for the PS3 dualpad to work in windows [& epsxe dualshock].
If you want motion-sense [not for the faint-hearted, allow a few hours/days for controller/game configuration] get "Glovepie 030" which includes instructions [could use in PCSX/harakuri plugin, but has issues under PCSX/gnneco plugin that I can work around by modifying pgnneco.ini as below]
-don't modify pgnneco2.ini, & backup pgnneco.ini before changing min/max values, these are default DirectX settings as seen in DXtweak [another great utility]
I also found after this mod i had to change the deadzone in wipeout 2097 calibration screen [even though it looks right] each time i play to get it working properly ingame.
D3D renderer 1.11 [PAL frame limit=25, 30 for ntsc?] SAPUcdr 1.0, eternal spu 1.4