1059b1c5bSMauro Carvalho Chehab.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 254f38fcaSMauro Carvalho Chehab 354f38fcaSMauro Carvalho Chehab.. _dvb-fe-read-status: 454f38fcaSMauro Carvalho Chehab 554f38fcaSMauro Carvalho Chehab*************************************** 654f38fcaSMauro Carvalho ChehabQuerying frontend status and statistics 754f38fcaSMauro Carvalho Chehab*************************************** 854f38fcaSMauro Carvalho Chehab 954f38fcaSMauro Carvalho ChehabOnce :ref:`FE_SET_PROPERTY <FE_GET_PROPERTY>` is called, the 1054f38fcaSMauro Carvalho Chehabfrontend will run a kernel thread that will periodically check for the 1154f38fcaSMauro Carvalho Chehabtuner lock status and provide statistics about the quality of the 1254f38fcaSMauro Carvalho Chehabsignal. 1354f38fcaSMauro Carvalho Chehab 1454f38fcaSMauro Carvalho ChehabThe information about the frontend tuner locking status can be queried 1554f38fcaSMauro Carvalho Chehabusing :ref:`FE_READ_STATUS`. 1654f38fcaSMauro Carvalho Chehab 1754f38fcaSMauro Carvalho ChehabSignal statistics are provided via 1854f38fcaSMauro Carvalho Chehab:ref:`FE_GET_PROPERTY`. 1954f38fcaSMauro Carvalho Chehab 2054f38fcaSMauro Carvalho Chehab.. note:: 2154f38fcaSMauro Carvalho Chehab 2254f38fcaSMauro Carvalho Chehab Most statistics require the demodulator to be fully locked 2354f38fcaSMauro Carvalho Chehab (e. g. with :c:type:`FE_HAS_LOCK <fe_status>` bit set). See 2454f38fcaSMauro Carvalho Chehab :ref:`Frontend statistics indicators <frontend-stat-properties>` for 2554f38fcaSMauro Carvalho Chehab more details. 26