Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_HINT_JOYSTICK_LINUX_HAT_DEADZONES - A variable controlling whether digital hats on Linux will apply
deadzones to their underlying input axes or use unfiltered values.
SYNOPSIS
#include <SDL3/SDL_hints.h>
#define SDL_HINT_JOYSTICK_LINUX_HAT_DEADZONES "SDL_JOYSTICK_LINUX_HAT_DEADZONES"
DESCRIPTION
The variable can be set to the following values:
• "0": Return digital hat values based on unfiltered input axis values.
• "1": Return digital hat values with deadzones on the input axes taken into account. (default)
This hint should be set before a controller is opened.
AVAILABILITY
This hint is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.20 SDL_HINT_JOYSTICK_LINUX_HAT_DEADZONES(3)