+SR_PRIV int hp_3457a_set_mq(const struct sr_dev_inst *sdi, enum sr_mq mq,
+ enum sr_mqflag mq_flags);
+SR_PRIV int hp_3457a_set_nplc(const struct sr_dev_inst *sdi, float nplc);
+SR_PRIV int hp_3457a_select_input(const struct sr_dev_inst *sdi,
+ enum channel_conn loc);
+SR_PRIV int hp_3457a_send_scan_list(const struct sr_dev_inst *sdi,
+ unsigned int *channels, size_t len);