1 .. SPDX-License-Identifier: GFDL-1.1-no-invari !! 1 .. Permission is granted to copy, distribute and/or modify this
>> 2 .. document under the terms of the GNU Free Documentation License,
>> 3 .. Version 1.1 or any later version published by the Free Software
>> 4 .. Foundation, with no Invariant Sections, no Front-Cover Texts
>> 5 .. and no Back-Cover Texts. A copy of the license is included at
>> 6 .. Documentation/userspace-api/media/fdl-appendix.rst.
>> 7 ..
>> 8 .. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
2 9
3 .. _dvb-fe-read-status: 10 .. _dvb-fe-read-status:
4 11
5 *************************************** 12 ***************************************
6 Querying frontend status and statistics 13 Querying frontend status and statistics
7 *************************************** 14 ***************************************
8 15
9 Once :ref:`FE_SET_PROPERTY <FE_GET_PROPERTY>` 16 Once :ref:`FE_SET_PROPERTY <FE_GET_PROPERTY>` is called, the
10 frontend will run a kernel thread that will pe 17 frontend will run a kernel thread that will periodically check for the
11 tuner lock status and provide statistics about 18 tuner lock status and provide statistics about the quality of the
12 signal. 19 signal.
13 20
14 The information about the frontend tuner locki 21 The information about the frontend tuner locking status can be queried
15 using :ref:`FE_READ_STATUS`. 22 using :ref:`FE_READ_STATUS`.
16 23
17 Signal statistics are provided via 24 Signal statistics are provided via
18 :ref:`FE_GET_PROPERTY`. 25 :ref:`FE_GET_PROPERTY`.
19 26
20 .. note:: 27 .. note::
21 28
22 Most statistics require the demodulator to 29 Most statistics require the demodulator to be fully locked
23 (e. g. with :c:type:`FE_HAS_LOCK <fe_status 30 (e. g. with :c:type:`FE_HAS_LOCK <fe_status>` bit set). See
24 :ref:`Frontend statistics indicators <front 31 :ref:`Frontend statistics indicators <frontend-stat-properties>` for
25 more details. 32 more details.
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