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

NAME
SDL_GetGamepadSerial - Get the serial number of an opened gamepad, if available.
SYNOPSIS
#include <SDL3/SDL_gamepad.h>
const char * SDL_GetGamepadSerial(SDL_Gamepad *gamepad);
DESCRIPTION
Returns the serial number of the gamepad, or NULL if it is not available.
FUNCTION PARAMETERS
gamepad
the gamepad object to query.
RETURN VALUE
Returns the serial number, or NULL if unavailable.
AVAILABILITY
This function is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.20 SDL_GetGamepadSerial(3)