Adding upstream version 5.10.209.upstream/5.10.209upstream

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

1 files changed, 54 insertions, 0 deletions

diff --git a/Documentation/userspace-api/media/dvb/video-clear-buffer.rst b/Documentation/userspace-api/media/dvb/video-clear-buffer.rst
new file mode 100644
index 000000000..a7730559b
--- /dev/null
+++ b/Documentation/userspace-api/media/dvb/video-clear-buffer.rst
@@ -0,0 +1,54 @@
+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: DTV.video
+
+.. _VIDEO_CLEAR_BUFFER:
+
+==================
+VIDEO_CLEAR_BUFFER
+==================
+
+Name
+----
+
+VIDEO_CLEAR_BUFFER
+
+.. attention:: This ioctl is deprecated.
+
+Synopsis
+--------
+
+.. c:macro:: VIDEO_CLEAR_BUFFER
+
+``int ioctl(fd, VIDEO_CLEAR_BUFFER)``
+
+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_CLEAR_BUFFER for this command.
+
+Description
+-----------
+
+This ioctl call clears all video buffers in the driver and in the
+decoder hardware.
+
+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.