2013/12/14 Ken Phillis Jr <kphillisjr@xxxxxxxxx>: > On Sat, Dec 14, 2013 at 12:22 AM, Benjamin Franzke > <benjaminfranzke@xxxxxxxxxxxxxx> wrote: >> >> I didnt test with games on steam. >> I've tested with supertuxkart 0.8.1 and jstest. >> >> Could you give me a hint, why you think that it breaks(?) input detection? >> >> I think SDL2 used evdev, so how should a changed joydev break the >> correction? (or do you mean in joydev fallback mode?) >> Searching through the SDL code I guess you refer to this: >> http://hg.libsdl.org/SDL/file/a5f8137ccf01/src/joystick/SDL_gamecontroller.c#l133 >> This really looks like a workaround for this brokeness of the joydev >> correction for triggers, >> thats why this should be fixed in kernel. >> >> It cant really be inteded to map triggers to -32767-32767, and >> consider this API to not brake application that have workarounds for >> this. >> Or is it? >> >> > > > > I believe the more appropriate work around would be to have the > appropriate mappings setting that are dependent on the device type. > This is to help improve overall interoperability. I know that most > xbox 360 devices can directly define the device type with the > descriptors. That said, Two of the mappings that can work are > MAP_FLIGHT_STICK and MAP_RACING_WHEEL. > > In the case of the MAP_RACING_WHEEL the following look reasonable enough... > ABS_WHEEL ( X axis on Left stick ) > ABS_GAS ( Left trigger ) > ABS_BRAKE ( Right Trigger ) I guess you mean left->brake and right->gas, thats how it is usually used. I agree that GAS is better suited in combination with BRAKE. > > in the case of MAP_FLIGHT_STICK, the following is needed... > PITCH/ROLL - Axis of Left stick > POV Hat - Right stick > Rudder - Left Trigger > Throttle - Right Trigger. I think this profiles can be another optimization, but they'll still need an adjusted default-correction in joydev. An alternative to these map types would probably be just generic bits like ABS_TRIGGER_*? > -- > 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 -- 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
