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.. -*- coding: utf-8; mode: rst -*-
.. _FE_DISEQC_SEND_BURST:
**************************
ioctl FE_DISEQC_SEND_BURST
**************************
Name
====
FE_DISEQC_SEND_BURST - Sends a 22KHz tone burst for 2x1 mini DiSEqC satellite selection.
Synopsis
========
.. c:function:: int ioctl( int fd, int request, enum fe_sec_mini_cmd *tone )
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
``request``
FE_DISEQC_SEND_BURST
``tone``
pointer to enum :ref:`fe_sec_mini_cmd <fe-sec-mini-cmd>`
Description
===========
This ioctl is used to set the generation of a 22kHz tone burst for mini
DiSEqC satellite selection for 2x1 switches. This call requires
read/write permissions.
It provides support for what's specified at
`Digital Satellite Equipment Control (DiSEqC) - Simple "ToneBurst" Detection Circuit specification. <http://www.eutelsat.com/files/contributed/satellites/pdf/Diseqc/associated%20docs/simple_tone_burst_detec.pdf>`__
.. _fe-sec-mini-cmd-t:
enum fe_sec_mini_cmd
====================
.. _fe-sec-mini-cmd:
.. flat-table:: enum fe_sec_mini_cmd
:header-rows: 1
:stub-columns: 0
- .. row 1
- ID
- Description
- .. row 2
- .. _SEC-MINI-A:
``SEC_MINI_A``
- Sends a mini-DiSEqC 22kHz '0' Tone Burst to select satellite-A
- .. row 3
- .. _SEC-MINI-B:
``SEC_MINI_B``
- Sends a mini-DiSEqC 22kHz '1' Data Burst to select satellite-B
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.
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