rtapi_exit - Shut down RTAPI

module_id
              An rtapi module identifier returned by an earlier call to rtapi_init.

rtapi_exit shuts down and cleans up the RTAPI.  It must be called prior to exit by any module that called
       rtapi_init.

       rtapi_exit - Shut down RTAPI

       Call only from within non-realtime or realtime init/cleanup code, not from realtime tasks.

       Returns a RTAPI status code.

LinuxCNC Documentation                             2006-10-12                                 rtapi_exit(3rtapi)

               int rtapi_exit(int module_id)