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- /* Asynch controller control block */
- struct asy {
- int fd; /* File descriptor for TTY */
- unsigned speed; /* Line speed */
- char *tty; /* TTY filename */
- struct termio orgmodes; /* original termio structure */
- char *buf; /* input buffer to avoid syscall overhead */
- char *data; /* data ptr in buf */
- unsigned bufsize; /* size of buffer */
- unsigned cnt; /* byte cnt in buf */
- };
- extern struct asy asy[];
- extern unsigned nasy; /* Actual number of asynch lines */
- ə