Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_SetGamepadLED - Update a gamepad's LED color.
HEADER FILE
Defined in SDL3/SDL_gamepad.h
SYNOPSIS
#include "SDL3/SDL.h" bool SDL_SetGamepadLED(SDL_Gamepad *gamepad, 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 gamepads with a single color LED, the maximum of the RGB values will be used as the LED brightness.
FUNCTION PARAMETERS
gamepad the gamepad 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
Returns true on success or false on failure; call SDL_GetError () for more information.
AVAILABILITY
This function is available since SDL 3.2.0. Simple Directmedia Layer SDL 3.2.8 SDL_SetGamepadLED(3)