linux/linux-5.18.11/Documentation/userspace-api/media/dvb/fe-diseqc-send-master-cmd.rst

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.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_DISEQC_SEND_MASTER_CMD:
*******************************
ioctl FE_DISEQC_SEND_MASTER_CMD
*******************************
Name
====
FE_DISEQC_SEND_MASTER_CMD - Sends a DiSEqC command
Synopsis
========
.. c:macro:: FE_DISEQC_SEND_MASTER_CMD
``int ioctl(int fd, FE_DISEQC_SEND_MASTER_CMD, struct dvb_diseqc_master_cmd *argp)``
Arguments
=========
``fd``
File descriptor returned by :c:func:`open()`.
``argp``
pointer to struct
:c:type:`dvb_diseqc_master_cmd`
Description
===========
Sends the DiSEqC command pointed by :c:type:`dvb_diseqc_master_cmd`
to the antenna subsystem.
Return Value
============
On success 0 is returned.
On error -1 is returned, and the ``errno`` variable is set
appropriately.
Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.