SR_PRIV extern const struct sr_scpi_dev_inst scpi_serial_dev;
SR_PRIV extern const struct sr_scpi_dev_inst scpi_tcp_raw_dev;
SR_PRIV extern const struct sr_scpi_dev_inst scpi_tcp_rigol_dev;
SR_PRIV extern const struct sr_scpi_dev_inst scpi_serial_dev;
SR_PRIV extern const struct sr_scpi_dev_inst scpi_tcp_raw_dev;
SR_PRIV extern const struct sr_scpi_dev_inst scpi_tcp_rigol_dev;