int seat_apply_acls(Seat *s, Session *old_active);
int seat_set_active(Seat *s, Session *session);
-int seat_active_vt_changed(Seat *s, int vtnr);
+int seat_active_vt_changed(Seat *s, unsigned int vtnr);
int seat_read_active_vt(Seat *s);
int seat_preallocate_vts(Seat *s);
extern const sd_bus_vtable seat_vtable[];
-int seat_node_enumerator(sd_bus *bus, const char *path, char ***nodes, void *userdata);
-int seat_object_find(sd_bus *bus, const char *path, const char *interface, void **found, void *seatdata);
+int seat_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);
+int seat_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error);
char *seat_bus_path(Seat *s);
int seat_send_signal(Seat *s, bool new_seat);