- open file
int8_t open_seqfile(struct seqfile_info *)
- write file
int8_t write_seqfile(struct seqfile_info *, struct smlfile_info *)
int8_t flush_seqfile(struct seqfile_info *)
- read file
int8_t goto_1st_smlfile(struct seqfile_info *)
int8_t read_seqfile_order(struct seqfile_info *, struct smlfile_info *)
int8_t read_seqfile_by_name(struct seqfile_info *, struct smlfile_info *)
- close file
int8_t close_seqfile(struct seqfile_info *)