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| -rw-r--r-- | Documentation/userspace-api/media/dvb/dvb-fe-read-status.rst | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/userspace-api/media/dvb/dvb-fe-read-status.rst b/Documentation/userspace-api/media/dvb/dvb-fe-read-status.rst new file mode 100644 index 0000000000..fbd0548f5f --- /dev/null +++ b/Documentation/userspace-api/media/dvb/dvb-fe-read-status.rst @@ -0,0 +1,25 @@ +.. 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. |