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

NAME
SDL_SetJoystickLED - Update a joystick's LED color.
SYNOPSIS
#include <SDL3/SDL_joystick.h>
bool SDL_SetJoystickLED(SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue);
DESCRIPTION
An example of a joystick LED is the light on the back of a PlayStation 4's DualShock 4 controller.
For joysticks with a single color LED, the maximum of the RGB values will be used as the LED brightness.
FUNCTION PARAMETERS
joystick
the joystick to update.
red the intensity of the red LED.
green the intensity of the green LED.
blue the intensity of the blue LED.
RETURN VALUE
for more information.
AVAILABILITY
This function is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.20 SDL_SetJoystickLED(3)