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 9 10.. _dvb-fe-read-status: 11 12*************************************** 13Querying frontend status and statistics 14*************************************** 15 16Once :ref:`FE_SET_PROPERTY <FE_GET_PROPERTY>` is called, the 17frontend will run a kernel thread that will periodically check for the 18tuner lock status and provide statistics about the quality of the 19signal. 20 21The information about the frontend tuner locking status can be queried 22using :ref:`FE_READ_STATUS`. 23 24Signal statistics are provided via 25:ref:`FE_GET_PROPERTY`. 26 27.. note:: 28 29 Most statistics require the demodulator to be fully locked 30 (e. g. with :c:type:`FE_HAS_LOCK <fe_status>` bit set). See 31 :ref:`Frontend statistics indicators <frontend-stat-properties>` for 32 more details. 33