78 lines
1.6 KiB
ReStructuredText
78 lines
1.6 KiB
ReStructuredText
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.. -*- coding: utf-8; mode: rst -*-
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.. _FE_DISEQC_SEND_BURST:
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**************************
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ioctl FE_DISEQC_SEND_BURST
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**************************
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Name
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====
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FE_DISEQC_SEND_BURST - Sends a 22KHz tone burst for 2x1 mini DiSEqC satellite selection.
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Synopsis
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========
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.. c:function:: int ioctl( int fd, FE_DISEQC_SEND_BURST, enum fe_sec_mini_cmd *tone )
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:name: FE_DISEQC_SEND_BURST
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Arguments
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=========
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``fd``
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File descriptor returned by :ref:`open() <frontend_f_open>`.
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``tone``
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pointer to enum :c:type:`fe_sec_mini_cmd`
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Description
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===========
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This ioctl is used to set the generation of a 22kHz tone burst for mini
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DiSEqC satellite selection for 2x1 switches. This call requires
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read/write permissions.
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It provides support for what's specified at
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`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>`__
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.. c:type:: fe_sec_mini_cmd
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.. flat-table:: enum fe_sec_mini_cmd
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:header-rows: 1
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:stub-columns: 0
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- .. row 1
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- ID
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- Description
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- .. row 2
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- .. _SEC-MINI-A:
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``SEC_MINI_A``
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- Sends a mini-DiSEqC 22kHz '0' Tone Burst to select satellite-A
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- .. row 3
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- .. _SEC-MINI-B:
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``SEC_MINI_B``
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- Sends a mini-DiSEqC 22kHz '1' Data Burst to select satellite-B
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Return Value
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============
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On success 0 is returned, on error -1 and the ``errno`` variable is set
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appropriately. The generic error codes are described at the
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:ref:`Generic Error Codes <gen-errors>` chapter.
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