tegrakernel/kernel/kernel-4.9/Documentation/media/uapi/dvb/query-dvb-frontend-info.rst

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.. -*- coding: utf-8; mode: rst -*-
.. _query-dvb-frontend-info:
*****************************
Querying frontend information
*****************************
Usually, the first thing to do when the frontend is opened is to check
the frontend capabilities. This is done using
:ref:`FE_GET_INFO`. This ioctl will enumerate the
DVB API version and other characteristics about the frontend, and can be
opened either in read only or read/write mode.