include/linux/tty_driver.h

133  *	This routine is called when a particular @tty device is opened. This
134  *	routine is mandatory; if this routine is not filled in, the attempted
141  *	This routine is called when a particular @tty device is closed. At the
151  *	This routine is called under the tty lock when a particular @tty device
157  *	This routine is called asynchronously when a particular @tty device
163  *	This routine is called by the kernel to write a series (@count) of
165  *	user space or kernel space.  This routine will return the
175  *	This routine is called by the kernel to write a single character @ch to
176  *	the @tty device. If the kernel uses this routine, it must call the
177  *	@flush_chars() routine (if defined) when it is done stuffing characters
186  *	This routine is called by the kernel after it has written a
194  *	This routine returns the numbers of characters the @tty driver
207  *	This routine returns the number of characters in the device private
217  *	This routine allows the @tty driver to implement device-specific
232  *	This routine allows the @tty driver to be notified when device's
245  *	This routine allows the @tty driver to decide if it can deal
252  *	This routine allows the @tty driver to be notified when the device's
260  *	This routine notifies the @tty driver that input buffers for the line
272  *	This routine notifies the @tty driver that it should signal that
281  *	This routine notifies the @tty driver that it should stop outputting
290  *	This routine notifies the @tty driver that it resumed sending
299  *	This routine notifies the @tty driver that it should hang up the @tty
306  *	This optional routine requests the @tty driver to turn on or off BREAK
310  *	If this routine is implemented, the high-level tty driver will handle
322  *	This routine discards device private output buffer. Invoked on close,
331  *	This routine waits until the device has written out all of the
340  *	This routine is used to send a high-priority XON/XOFF character (@ch)
348  *	This routine is used to obtain the modem status bits from the @tty
357  *	This routine is used to set the modem status bits to the @tty driver.
409  *	kgdboc support (Documentation/process/debugging/kgdb.rst). This routine is