mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-26 12:34:41 +08:00
82559ac027
All those files are under GFDL 1.1 or later, with no invariant sections. Tag them as such. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
60 lines
1.2 KiB
ReStructuredText
60 lines
1.2 KiB
ReStructuredText
.. Permission is granted to copy, distribute and/or modify this
|
|
.. document under the terms of the GNU Free Documentation License,
|
|
.. Version 1.1 or any later version published by the Free Software
|
|
.. Foundation, with no Invariant Sections, no Front-Cover Texts
|
|
.. and no Back-Cover Texts. A copy of the license is included at
|
|
.. Documentation/media/uapi/fdl-appendix.rst.
|
|
..
|
|
.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
|
|
|
|
.. _CA_GET_MSG:
|
|
|
|
==========
|
|
CA_GET_MSG
|
|
==========
|
|
|
|
Name
|
|
----
|
|
|
|
CA_GET_MSG
|
|
|
|
|
|
Synopsis
|
|
--------
|
|
|
|
.. c:function:: int ioctl(fd, CA_GET_MSG, struct ca_msg *msg)
|
|
:name: CA_GET_MSG
|
|
|
|
|
|
Arguments
|
|
---------
|
|
|
|
``fd``
|
|
File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
|
|
|
|
``msg``
|
|
Pointer to struct :c:type:`ca_msg`.
|
|
|
|
Description
|
|
-----------
|
|
|
|
Receives a message via a CI CA module.
|
|
|
|
.. note::
|
|
|
|
Please notice that, on most drivers, this is done by reading from
|
|
the /dev/adapter?/ca? device node.
|
|
|
|
|
|
Return Value
|
|
------------
|
|
|
|
|
|
On success 0 is returned.
|
|
|
|
On error -1 is returned, and the ``errno`` variable is set
|
|
appropriately.
|
|
|
|
Generic error codes are described at the
|
|
:ref:`Generic Error Codes <gen-errors>` chapter.
|