Adding upstream version 4.19.249.upstream/4.19.249upstream

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

1 files changed, 62 insertions, 0 deletions

diff --git a/Documentation/media/uapi/dvb/fe-get-frontend.rst b/Documentation/media/uapi/dvb/fe-get-frontend.rst
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+.. -*- coding: utf-8; mode: rst -*-
+
+.. _FE_GET_FRONTEND:
+
+***************
+FE_GET_FRONTEND
+***************
+
+Name
+====
+
+FE_GET_FRONTEND
+
+.. attention:: This ioctl is deprecated.
+
+
+Synopsis
+========
+
+.. c:function:: int ioctl(int fd, FE_GET_FRONTEND, struct dvb_frontend_parameters *p)
+    :name: FE_GET_FRONTEND
+
+
+Arguments
+=========
+
+``fd``
+    File descriptor returned by :c:func:`open() <dvb-fe-open>`.
+
+
+``p``
+    Points to parameters for tuning operation.
+
+
+Description
+===========
+
+This ioctl call queries the currently effective frontend parameters. For
+this command, read-only access to the device is sufficient.
+
+
+Return Value
+============
+
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+
+    -  .. row 1
+
+       -  ``EINVAL``
+
+       -  Maximum supported symbol rate reached.
+
+Generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.