readef(event_flag.i2.r, status.i2.r) This routine will read a single event flag specified by 'event_flag'. event_flag event flag to read [status] returned status value (0 -> event flag is clear, 2 -> event flag is set, -1 -> error reading event flag) This function requires the following include files: clib_h Related functions: setef, clref, waitfr