9 void (*read)(struct serial_if *, void *, size_t);
10 void (*write)(struct serial_if *, const void *, size_t);
19 void send_ymodem(struct serial_if *, struct file_info *,
20 void (*)(void *, size_t, struct file_info *, size_t));
21 void end_ymodem(struct serial_if *);
23 int serial_init(struct serial_if *sif);
24 void serial_read(struct serial_if *sif, void *data, size_t n);
25 void serial_write(struct serial_if *sif, const void *data, size_t n);