Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 72 insertions, 0 deletions

diff --git a/Documentation/userspace-api/media/dvb/video-fast-forward.rst b/Documentation/userspace-api/media/dvb/video-fast-forward.rst
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+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: DTV.video
+
+.. _VIDEO_FAST_FORWARD:
+
+==================
+VIDEO_FAST_FORWARD
+==================
+
+Name
+----
+
+VIDEO_FAST_FORWARD
+
+.. attention:: This ioctl is deprecated.
+
+Synopsis
+--------
+
+.. c:macro:: VIDEO_FAST_FORWARD
+
+``int ioctl(fd, VIDEO_FAST_FORWARD, int nFrames)``
+
+Arguments
+---------
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  .. row 1
+
+       -  int fd
+
+       -  File descriptor returned by a previous call to open().
+
+    -  .. row 2
+
+       -  int request
+
+       -  Equals VIDEO_FAST_FORWARD for this command.
+
+    -  .. row 3
+
+       -  int nFrames
+
+       -  The number of frames to skip.
+
+Description
+-----------
+
+This ioctl call asks the Video Device to skip decoding of N number of
+I-frames. This call can only be used if VIDEO_SOURCE_MEMORY is
+selected.
+
+Return Value
+------------
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  .. row 1
+
+       -  ``EPERM``
+
+       -  Mode VIDEO_SOURCE_MEMORY not selected.