sysevent_register_event
if (sysevent_register_event(sysevent_hp, EC_ALL, &subclass_list, 1)
if (sysevent_register_event(handle, EC_ALL, &subclass_list, 1)
return (sysevent_register_event(shp, event_class,
int sysevent_register_event(sysevent_handle_t *shp, const char *event_class,