SR_PRIV extern unsigned int num_pps_profiles;
SR_PRIV extern const struct scpi_pps pps_profiles[];
-SR_PRIV const char *get_vendor(const char *raw_vendor);
SR_PRIV int select_channel(const struct sr_dev_inst *sdi, struct sr_channel *ch);
SR_PRIV int scpi_pps_receive_data(int fd, int revents, void *cb_data);