extern SR_PRIV struct sr_output_format output_text_bits;
extern SR_PRIV struct sr_output_format output_text_hex;
extern SR_PRIV struct sr_output_format output_text_ascii;
extern SR_PRIV struct sr_output_format output_text_bits;
extern SR_PRIV struct sr_output_format output_text_hex;
extern SR_PRIV struct sr_output_format output_text_ascii;