int udev_ctrl_enable_receiving(struct udev_ctrl *uctrl);
struct udev_ctrl *udev_ctrl_ref(struct udev_ctrl *uctrl);
void udev_ctrl_unref(struct udev_ctrl *uctrl);
int udev_ctrl_enable_receiving(struct udev_ctrl *uctrl);
struct udev_ctrl *udev_ctrl_ref(struct udev_ctrl *uctrl);
void udev_ctrl_unref(struct udev_ctrl *uctrl);