al_get_haptic_from_mouse man page
al_get_haptic_from_mouse — Allegro 5 API
#include <allegro5/allegro.h> ALLEGRO_HAPTIC *al_get_haptic_from_mouse(ALLEGRO_MOUSE *dev)
If the mouse has haptic capabilities, returns the associated haptic device handle. Otherwise returns NULL.
[Unstable API]: Perhaps could be simplified due to limited support for all the exposed features across all of the platforms. Awaiting feedback from users.