linux-stable/Documentation/userspace-api/media/dvb/dvb-fe-read-status.rst
Mauro Carvalho Chehab 059b1c5b15 media: docs: use the new SPDX header for GFDL-1.1 on *.rst files
SPDX v3.10 gained support for GFDL-1.1 with no invariant sections:

	https://spdx.org/licenses/GFDL-1.1-no-invariants-or-later.html

So, remove the license text, replacing them by this new SPDX
license.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01 14:13:30 +02:00

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.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. _dvb-fe-read-status:
***************************************
Querying frontend status and statistics
***************************************
Once :ref:`FE_SET_PROPERTY <FE_GET_PROPERTY>` is called, the
frontend will run a kernel thread that will periodically check for the
tuner lock status and provide statistics about the quality of the
signal.
The information about the frontend tuner locking status can be queried
using :ref:`FE_READ_STATUS`.
Signal statistics are provided via
:ref:`FE_GET_PROPERTY`.
.. note::
Most statistics require the demodulator to be fully locked
(e. g. with :c:type:`FE_HAS_LOCK <fe_status>` bit set). See
:ref:`Frontend statistics indicators <frontend-stat-properties>` for
more details.