void init_virtual_device(struct device *dev, const struct device_type *type, const char *name);
int init_device(struct device *iface, const struct device_type *type, const char *ifname);
void device_cleanup(struct device *iface);
void init_virtual_device(struct device *dev, const struct device_type *type, const char *name);
int init_device(struct device *iface, const struct device_type *type, const char *ifname);
void device_cleanup(struct device *iface);
void device_add_user(struct device_user *dep, struct device *iface);
void device_remove_user(struct device_user *dep);
void device_add_user(struct device_user *dep, struct device *iface);
void device_remove_user(struct device_user *dep);