linux/Documentation/media/uapi/dvb/ca-reset.rst
Mauro Carvalho Chehab 9a721b9b4b media: dvb uAPI docs: adjust return value ioctl descriptions
There are several issues on the return value for ioctls:

- Text is confusing;
- Some error codes don't exist;
- The non-generic error codes should come before the text
  that points to the generic error codes;
- Tables don't contain column size hints;
- Some references are not marked as such.

Correct them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:16:37 -04:00

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ReStructuredText

.. -*- coding: utf-8; mode: rst -*-
.. _CA_RESET:
========
CA_RESET
========
Name
----
CA_RESET
Synopsis
--------
.. c:function:: int ioctl(fd, CA_RESET)
:name: CA_RESET
Arguments
---------
``fd``
File descriptor returned by a previous call to :c:func:`open() <cec-open>`.
Description
-----------
Puts the Conditional Access hardware on its initial state. It should
be called before start using the CA hardware.
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.