diff options
| author | Luca Ceresoli <luca@lucaceresoli.net> | 2018-03-02 04:37:20 -0500 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-03-06 12:29:57 -0500 |
| commit | e97c19074f282f20625d4522da184647a5c9b52c (patch) | |
| tree | 3514698d2a1a1de130aa48e634644a5b9f478f45 /Documentation/media/uapi/v4l/func-poll.rst | |
| parent | f68e68d2923069fd9b21aa1e7ed445cda2f6db05 (diff) | |
media: doc: poll: fix links to dual-ioctl sections
Links like :ref:`VIDIOC_STREAMON` expand to "ioctl VIDIOC_STREAMON,
VIDIOC_STREAMOFF". Thus our reader will think we are talking about
STREAMON _and_ STREAMOFF, but only one of the two actually applies
in some cases.
Fix by adding a link title, so the reader will read only the correct
ioctl name.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'Documentation/media/uapi/v4l/func-poll.rst')
| -rw-r--r-- | Documentation/media/uapi/v4l/func-poll.rst | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/media/uapi/v4l/func-poll.rst b/Documentation/media/uapi/v4l/func-poll.rst index d0432dc09b05..360bc6523ae2 100644 --- a/Documentation/media/uapi/v4l/func-poll.rst +++ b/Documentation/media/uapi/v4l/func-poll.rst @@ -39,7 +39,7 @@ When streaming I/O has been negotiated this function waits until a buffer has been filled by the capture device and can be dequeued with the :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. For output devices this function waits until the device is ready to accept a new buffer to be -queued up with the :ref:`VIDIOC_QBUF` ioctl for +queued up with the :ref:`VIDIOC_QBUF <VIDIOC_QBUF>` ioctl for display. When buffers are already in the outgoing queue of the driver (capture) or the incoming queue isn't full (display) the function returns immediately. @@ -52,11 +52,11 @@ flags in the ``revents`` field, output devices the ``POLLOUT`` and ``POLLWRNORM`` flags. When the function timed out it returns a value of zero, on failure it returns -1 and the ``errno`` variable is set appropriately. When the application did not call -:ref:`VIDIOC_STREAMON` the :ref:`poll() <func-poll>` +:ref:`VIDIOC_STREAMON <VIDIOC_STREAMON>` the :ref:`poll() <func-poll>` function succeeds, but sets the ``POLLERR`` flag in the ``revents`` field. When the application has called -:ref:`VIDIOC_STREAMON` for a capture device but -hasn't yet called :ref:`VIDIOC_QBUF`, the +:ref:`VIDIOC_STREAMON <VIDIOC_STREAMON>` for a capture device but +hasn't yet called :ref:`VIDIOC_QBUF <VIDIOC_QBUF>`, the :ref:`poll() <func-poll>` function succeeds and sets the ``POLLERR`` flag in the ``revents`` field. For output devices this same situation will cause :ref:`poll() <func-poll>` to succeed as well, but it sets the ``POLLOUT`` and |