void *port_array_first(const struct port_array *, unsigned int *);
void *port_array_next(const struct port_array *, unsigned int *);
unsigned int port_array_count(const struct port_array *);
void *port_array_first(const struct port_array *, unsigned int *);
void *port_array_next(const struct port_array *, unsigned int *);
unsigned int port_array_count(const struct port_array *);