+SR_PRIV const char *sr_vendor_alias(const char *raw_vendor);
+SR_PRIV const char *scpi_cmd_get(const struct scpi_command *cmdtable, int command);
+SR_PRIV int scpi_cmd(const struct sr_dev_inst *sdi,
+ const struct scpi_command *cmdtable, int command, ...);
+SR_PRIV int scpi_cmd_resp(const struct sr_dev_inst *sdi,
+ const struct scpi_command *cmdtable,
+ GVariant **gvar, const GVariantType *gvtype, int command, ...);
+