mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
a17a954efd
The :c:type: references point to the structure name, and not to
struct foo.
Fixed via this shell script:
for i in `find Documentation/media -type f`; do perl -ne 'if (s/\:c\:type\:\`struct\s*(\S+)\`/struct :c:type:`$1`/) { s/struct\s+struct/struct/; s/(struct\s+\:c\:type\:\`\S+\`)\s+structure/$1/; } print $_' <$i >a && mv a $i; done
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
83 lines
1.9 KiB
ReStructuredText
83 lines
1.9 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
|
|
|
|
.. _cec-func-poll:
|
|
|
|
**********
|
|
cec poll()
|
|
**********
|
|
|
|
Name
|
|
====
|
|
|
|
cec-poll - Wait for some event on a file descriptor
|
|
|
|
|
|
Synopsis
|
|
========
|
|
|
|
.. code-block:: c
|
|
|
|
#include <sys/poll.h>
|
|
|
|
|
|
.. c:function:: int poll( struct pollfd *ufds, unsigned int nfds, int timeout )
|
|
:name: cec-poll
|
|
|
|
Arguments
|
|
=========
|
|
|
|
``ufds``
|
|
List of FD events to be watched
|
|
|
|
``nfds``
|
|
Number of FD efents at the \*ufds array
|
|
|
|
``timeout``
|
|
Timeout to wait for events
|
|
|
|
|
|
Description
|
|
===========
|
|
|
|
.. note::
|
|
|
|
This documents the proposed CEC API. This API is not yet finalized
|
|
and is currently only available as a staging kernel module.
|
|
|
|
With the :c:func:`poll()` function applications can wait for CEC
|
|
events.
|
|
|
|
On success :c:func:`poll()` returns the number of file descriptors
|
|
that have been selected (that is, file descriptors for which the
|
|
``revents`` field of the respective struct :c:type:`pollfd`
|
|
is non-zero). CEC devices set the ``POLLIN`` and ``POLLRDNORM`` flags in
|
|
the ``revents`` field if there are messages in the receive queue. If the
|
|
transmit queue has room for new messages, the ``POLLOUT`` and
|
|
``POLLWRNORM`` flags are set. If there are events in the event queue,
|
|
then the ``POLLPRI`` flag is set. When the function timed out it returns
|
|
a value of zero, on failure it returns -1 and the ``errno`` variable is
|
|
set appropriately.
|
|
|
|
For more details see the :c:func:`poll()` manual page.
|
|
|
|
|
|
Return Value
|
|
============
|
|
|
|
On success, :c:func:`poll()` returns the number structures which have
|
|
non-zero ``revents`` fields, or zero if the call timed out. On error -1
|
|
is returned, and the ``errno`` variable is set appropriately:
|
|
|
|
``EBADF``
|
|
One or more of the ``ufds`` members specify an invalid file
|
|
descriptor.
|
|
|
|
``EFAULT``
|
|
``ufds`` references an inaccessible memory area.
|
|
|
|
``EINTR``
|
|
The call was interrupted by a signal.
|
|
|
|
``EINVAL``
|
|
The ``nfds`` argument is greater than ``OPEN_MAX``.
|