Based on kernel version 6.8. Page generated on 2024-03-11 21:26 EST.
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.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_GET_FRONTEND:
***************
FE_GET_FRONTEND
***************
Name
====
FE_GET_FRONTEND
.. attention:: This ioctl is deprecated.
Synopsis
========
.. c:macro:: FE_GET_FRONTEND
``int ioctl(int fd, FE_GET_FRONTEND, struct dvb_frontend_parameters *p)``
Arguments
=========
``fd``
File descriptor returned by :c:func:`open()`.
``p``
Points to parameters for tuning operation.
Description
===========
This ioctl call queries the currently effective frontend parameters. For
this command, read-only access to the device is sufficient.
Return Value
============
On success 0 is returned.
On error -1 is returned, and the ``errno`` variable is set
appropriately.
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- .. row 1
- ``EINVAL``
- Maximum supported symbol rate reached.
Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
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