Sam Lantinga 56b7f4cf31 Fixed bug 4583 - PollAllValues appears to use an incorrect index for all axes above 0x18 ... Noam Preil In src/joystick/linux/SDL_sysjoystick.c: The ConfigJoystick function's axes detection starts with a for loop using an index i for Linux's axes names. When i gets to ABS_HAT0X, it's set to ABS_HAT3Y and a continue statement appears, to skip the hats. This makes sense, as SDL handles hats separately from axes. However, in PollAllValues, *two* indices are used: a and b. Both start out the same, and remain so until the hats are reached. At that point, a becomes identical to the i from ConfigJoystick's loop, but b is equal to a - (ABS_HAT3Y - ABS_HAT0X), or a - 8. While all the joystick->hwdata->abs_* structures in ConfigJoystick used i - which would here be a - as both the index and the ioctl argument, PollAllValues uses b for the structure index and a as the ioctl argument. It would appear, however, that no joystick HAS such axes, and that the b index is entirely unnecessary. I tested three separate joysticks, and while that was far from a complete listing, I was unable to find a joystick with an axis above 0x08.		2019-06-08 14:40:27 -07:00
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SDL_sysjoystick.c	Fixed bug 4583 - PollAllValues appears to use an incorrect index for all axes above 0x18	2019-06-08 14:40:27 -07:00
SDL_sysjoystick_c.h	Updated copyright for 2019	2019-01-04 22:01:14 -08:00