int ctcm_open(struct net_device *dev);
int ctcm_close(struct net_device *dev);
-/*
- * prototypes for non-static sysfs functions
- */
-int ctcm_add_attributes(struct device *dev);
-void ctcm_remove_attributes(struct device *dev);
-int ctcm_add_files(struct device *dev);
-void ctcm_remove_files(struct device *dev);
+extern const struct attribute_group *ctcm_attr_groups[];
/*
* Compatibility macros for busy handling