al_release_haptic - Allegro 5 API

       Releases  the  haptic device and its resources when it’s not needed anymore.  Should also be used in case
       the joystick configuration changed, such  as  when  a  joystick  is  hot  plugged.   This  function  also
       automatically  releases  all  haptic effects that are still uploaded to the device and that have not been
       released manually using al_release_haptic_effect(3alleg5).

       Returns true on success or false if the haptic device couldn’t be released for any reason, such  as  NULL
       being passed, the device not being active or failure in the driver.

       al_release_haptic - Allegro 5 API

       5.1.8

              [UnstableAPI]:  Perhaps  could be simplified due to limited support for all the exposed features
              across all of the platforms.  Awaiting feedback from users.

Allegro reference manual                                                              al_release_haptic(3alleg5)

              #include <allegro5/allegro.h>

              bool al_release_haptic(ALLEGRO_HAPTIC *haptic)