+/* Turn the port into raw mode. */
+
+#define SERIAL_RAW(SERIAL_T) (SERIAL_T)->ops->go_raw((SERIAL_T))
+
+/* Return a pointer to a newly malloc'd ttystate containing the state
+ of the tty. */
+#define SERIAL_GET_TTY_STATE(SERIAL_T) (SERIAL_T)->ops->get_tty_state((SERIAL_T))
+
+/* Set the state of the tty to TTYSTATE. The change is immediate.
+ When changing to or from raw mode, input might be discarded.
+ Returns 0 for success, negative value for error (in which case errno
+ contains the error). */
+#define SERIAL_SET_TTY_STATE(SERIAL_T, TTYSTATE) (SERIAL_T)->ops->set_tty_state((SERIAL_T), (TTYSTATE))
+
+/* printf_filtered a user-comprehensible description of ttystate. */
+#define SERIAL_PRINT_TTY_STATE(SERIAL_T, TTYSTATE) \
+ ((*((SERIAL_T)->ops->print_tty_state)) ((SERIAL_T), (TTYSTATE)))
+
+/* Set the tty state to NEW_TTYSTATE, where OLD_TTYSTATE is the
+ current state (generally obtained from a recent call to
+ SERIAL_GET_TTY_STATE), but be careful not to discard any input.
+ This means that we never switch in or out of raw mode, even
+ if NEW_TTYSTATE specifies a switch. */
+#define SERIAL_NOFLUSH_SET_TTY_STATE(SERIAL_T, NEW_TTYSTATE, OLD_TTYSTATE) \
+ ((*((SERIAL_T)->ops->noflush_set_tty_state)) \
+ ((SERIAL_T), (NEW_TTYSTATE), (OLD_TTYSTATE)))
+
+/* Read one char from the serial device with TIMEOUT seconds to wait
+ or -1 to wait forever. Use timeout of 0 to effect a poll. Returns
+ char if ok, else one of the following codes. Note that all error
+ codes are guaranteed to be < 0. */
+
+#define SERIAL_ERROR -1 /* General error, see errno for details */
+#define SERIAL_TIMEOUT -2
+#define SERIAL_EOF -3
+
+#define SERIAL_READCHAR(SERIAL_T, TIMEOUT) ((SERIAL_T)->ops->readchar((SERIAL_T), TIMEOUT))
+
+/* Set the baudrate to the decimal value supplied. Returns 0 for success,
+ -1 for failure. */
+
+#define SERIAL_SETBAUDRATE(SERIAL_T, RATE) ((SERIAL_T)->ops->setbaudrate((SERIAL_T), RATE))
+
+/* Write LEN chars from STRING to the port SERIAL_T. Returns 0 for
+ success, non-zero for failure. */
+
+#define SERIAL_WRITE(SERIAL_T, STRING, LEN) ((SERIAL_T)->ops->write((SERIAL_T), STRING, LEN))
+
+/* Push out all buffers, close the device and destroy SERIAL_T. */
+
+void serial_close PARAMS ((serial_t));
+
+#define SERIAL_CLOSE(SERIAL_T) serial_close(SERIAL_T)
+
+/* Destroy SERIAL_T without doing the rest of the stuff that SERIAL_CLOSE
+ does. */
+
+#define SERIAL_UN_FDOPEN(SERIAL_T) (free (SERIAL_T))
+
+#endif /* SERIAL_H */