al_get_joystick_event_source - Man Page

#include <allegro5/allegro.h>

ALLEGRO_EVENT_SOURCE *al_get_joystick_event_source(void)

Returns the global joystick event source. All [joystick events]ALLEGRO_EVENT_JOYSTICK_AXIS(3) are generated by this event source.

al_reconfigure_joysticks(3).