SR_PRIV int lps_process_status(struct sr_dev_inst *sdi, int stat);
SR_PRIV int lps_send_req(struct sr_serial_dev_inst *serial, const char *fmt, ...);
SR_PRIV int lps_process_status(struct sr_dev_inst *sdi, int stat);
SR_PRIV int lps_send_req(struct sr_serial_dev_inst *serial, const char *fmt, ...);