include/linux/tty_driver.h

115  *	Optional method. Default behaviour is to use the @self->ttys array.
122  *	Optional method. Default behaviour is to use the @self->ttys array.
129  *	Optional method. Default behaviour is to use the @self->ttys array.
171  *	Optional: Required for writable devices. May not sleep.
181  *	Optional: Kernel will use the @write method if not provided. Do not
189  *	Optional. Do not call this function directly, call
211  *	Optional: if not provided, it is assumed there is no queue on the
221  *	Optional.
228  *	Optional.
241  *	Optional. Called under the @tty->termios_rwsem. May sleep.
248  *	Optional. Called under the @tty->ldisc_sem and @tty->termios_rwsem.
256  *	Optional. Called under the @tty->ldisc_sem and @tty->termios_rwsem.
267  *	Optional: Always invoke via tty_throttle_safe(). Called under the
276  *	Optional. Always invoke via tty_unthrottle(). Called under the
286  *	Optional. Always invoke via stop_tty().
295  *	Optional. Always invoke via start_tty().
302  *	Optional. Called with tty lock held.
306  *	This optional routine requests the @tty driver to turn on or off BREAK
318  *	Optional: Required for %TCSBRK/%BRKP/etc. handling. May sleep.
325  *	Optional: if not provided, it is assumed there is no queue on the
335  *	Optional: If not provided, the device is assumed to have no FIFO.
343  *	Optional: If not provided, then the @write method is called under
351  *	Optional: If not provided, then %ENOTTY is returned from the %TIOCMGET
360  *	Optional: If not provided, then %ENOTTY is returned from the %TIOCMSET
368  *	Optional: the default action is to update the termios structure
380  *	Optional: called only if provided, otherwise %ENOTTY will be returned.
387  *	Optional: called only if provided, otherwise %ENOTTY will be returned.
395  *	Optional: called only if provided, otherwise %ENOTTY will be returned.
404  *	Optional: called only if provided, otherwise nothing is written to @m.
413  *	Optional: called only if provided, otherwise skipped as a non-polling
421  *	Optional: called only if @poll_init provided.
428  *	Optional: called only if @poll_init provided.
436  *	Optional: called only if provided, otherwise no /proc entry created.
440  * they are optional, and can be filled in with a %NULL pointer.