+SR_API int sr_config_get(const struct sr_dev_driver *driver, int key,
+ const void **data, const struct sr_dev_inst *sdi);
+SR_API int sr_config_set(const struct sr_dev_inst *sdi, int key,
+ const void *value);
+SR_API int sr_config_list(const struct sr_dev_driver *driver, int key,