SR_PRIV int scpi_dmm_get_meas_agilent(const struct sr_dev_inst *sdi, size_t ch);
SR_PRIV int scpi_dmm_get_meas_gwinstek(const struct sr_dev_inst *sdi, size_t ch);
SR_PRIV int scpi_dmm_receive_data(int fd, int revents, void *cb_data);
SR_PRIV int scpi_dmm_get_meas_agilent(const struct sr_dev_inst *sdi, size_t ch);
SR_PRIV int scpi_dmm_get_meas_gwinstek(const struct sr_dev_inst *sdi, size_t ch);
SR_PRIV int scpi_dmm_receive_data(int fd, int revents, void *cb_data);