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Linux_Drivers/linux_5.10/Documentation/userspace-api/media/dvb/query-dvb-frontend-info.rst
sam.xiang 5c7dd7acc3 [linux] create linux_5.10.4 from T-head official:
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Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
2023-03-10 20:32:41 +08:00

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.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. _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
Digital TV API version and other characteristics about the frontend, and can
be opened either in read only or read/write mode.