/* invoke a method on a specific object */
int ubus_invoke(struct ubus_context *ctx, uint32_t obj, const char *method,
struct blob_attr *msg, ubus_data_handler_t cb, void *priv);
/* invoke a method on a specific object */
int ubus_invoke(struct ubus_context *ctx, uint32_t obj, const char *method,
struct blob_attr *msg, ubus_data_handler_t cb, void *priv);