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.. -*- coding: utf-8; mode: rst -*-
.. _FE_GET_FRONTEND:
***************
FE_GET_FRONTEND
***************
DESCRIPTION
This ioctl call queries the currently effective frontend parameters. For
this command, read-only access to the device is sufficient.
SYNOPSIS
int ioctl(int fd, int request =
:ref:`FE_GET_FRONTEND <FE_GET_FRONTEND>`, struct
dvb_frontend_parameters *p);
PARAMETERS
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
- File descriptor returned by a previous call to open().
- .. row 2
- int request
- Equals :ref:`FE_SET_FRONTEND <FE_SET_FRONTEND>` for this
command.
- .. row 3
- struct dvb_frontend_parameters *p
- Points to parameters for tuning operation.
RETURN VALUE
On success 0 is returned, on error -1 and the ``errno`` variable is set
appropriately. The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- EINVAL
- Maximum supported symbol rate reached.
.. ------------------------------------------------------------------------------
.. This file was automatically converted from DocBook-XML with the dbxml
.. library (https://github.com/return42/sphkerneldoc). The origin XML comes
.. from the linux kernel, refer to:
..
.. * https://github.com/torvalds/linux/tree/master/Documentation/DocBook
.. ------------------------------------------------------------------------------
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