SR_PRIV int rdtech_dps_set_state(const struct sr_dev_inst *sdi,
struct rdtech_dps_state *state);
SR_PRIV int rdtech_dps_get_model_version(struct sr_modbus_dev_inst *modbus,
SR_PRIV int rdtech_dps_set_state(const struct sr_dev_inst *sdi,
struct rdtech_dps_state *state);
SR_PRIV int rdtech_dps_get_model_version(struct sr_modbus_dev_inst *modbus,