.. SPDX-License-Identifier: GPL-2.0
========
TTY Port
========
.. contents:: :local:
The TTY drivers are advised to use struct tty_port helpers as much as possible.
If the drivers implement :c:member:`tty_port.ops.activate()` and
:c:member:`tty_port.ops.shutdown()`, they can use tty_port_open(),
tty_port_close(), and tty_port_hangup() in respective
:c:member:`tty_struct.ops` hooks.
The reference and details are contained in the `TTY Port Reference`_ and `TTY
Port Operations Reference`_ sections at the bottom.
TTY Port Functions
==================
Init & Destroy
--------------
.. kernel-doc:: drivers/tty/tty_port.c
:identifiers: tty_port_init tty_port_destroy
tty_port_get tty_port_put
Open/Close/Hangup Helpers
-------------------------
.. kernel-doc:: drivers/tty/tty_port.c
:identifiers: tty_port_install tty_port_open tty_port_block_til_ready
tty_port_close tty_port_close_start tty_port_close_end tty_port_hangup
tty_port_shutdown
TTY Refcounting
---------------
.. kernel-doc:: drivers/tty/tty_port.c
:identifiers: tty_port_tty_get tty_port_tty_set
TTY Helpers
-----------
.. kernel-doc:: include/linux/tty_port.h
:identifiers: tty_port_tty_hangup tty_port_tty_vhangup
.. kernel-doc:: drivers/tty/tty_port.c
:identifiers: tty_port_tty_wakeup
Modem Signals
-------------
.. kernel-doc:: drivers/tty/tty_port.c
:identifiers: tty_port_carrier_raised tty_port_raise_dtr_rts
tty_port_lower_dtr_rts
----
TTY Port Reference
==================
.. kernel-doc:: include/linux/tty_port.h
:identifiers: tty_port
----
TTY Port Operations Reference
=============================
.. kernel-doc:: include/linux/tty_port.h
:identifiers: tty_port_operations
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