-int udev_seat_add_devices(struct udev_seat *seat, struct udev *udev);
-int udev_seat_enable_udev_monitor(struct udev_seat *seat, struct udev *udev);
-void udev_seat_disable_udev_monitor(struct udev_seat *seat);
-struct udev_seat *udev_seat_create(struct weston_compositor *c,
- struct udev *udev,
- const char *seat_id);
-void udev_seat_remove_devices(struct udev_seat *seat);
-void udev_seat_destroy(struct udev_seat *seat);
-