SR_PRIV int testo_request_packet(const struct sr_dev_inst *sdi);
SR_PRIV gboolean testo_check_packet_prefix(uint8_t *buf, int len);
SR_PRIV uint16_t crc16_mcrf4xx(uint16_t crc, uint8_t *data, size_t len);
SR_PRIV int testo_request_packet(const struct sr_dev_inst *sdi);
SR_PRIV gboolean testo_check_packet_prefix(uint8_t *buf, int len);
SR_PRIV uint16_t crc16_mcrf4xx(uint16_t crc, uint8_t *data, size_t len);