void (*close)(struct TTY_struct *); \
int (*recv)(struct TTY_struct *,void *buf,int len); \
int (*xmit)(struct TTY_struct *,void *buf,int len); \
void (*close)(struct TTY_struct *); \
int (*recv)(struct TTY_struct *,void *buf,int len); \
int (*xmit)(struct TTY_struct *,void *buf,int len); \