1 .. Permission is granted to copy, distribute and/or modify this
2 .. document under the terms of the GNU Free Documentation License,
3 .. Version 1.1 or any later version published by the Free Software
4 .. Foundation, with no Invariant Sections, no Front-Cover Texts
5 .. and no Back-Cover Texts. A copy of the license is included at
6 .. Documentation/media/uapi/fdl-appendix.rst.
8 .. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
10 .. _FE_DISEQC_SEND_BURST:
12 **************************
13 ioctl FE_DISEQC_SEND_BURST
14 **************************
19 FE_DISEQC_SEND_BURST - Sends a 22KHz tone burst for 2x1 mini DiSEqC satellite selection.
25 .. c:function:: int ioctl( int fd, FE_DISEQC_SEND_BURST, enum fe_sec_mini_cmd tone )
26 :name: FE_DISEQC_SEND_BURST
33 File descriptor returned by :ref:`open() <frontend_f_open>`.
36 An integer enumered value described at :c:type:`fe_sec_mini_cmd`.
42 This ioctl is used to set the generation of a 22kHz tone burst for mini
43 DiSEqC satellite selection for 2x1 switches. This call requires
44 read/write permissions.
46 It provides support for what's specified at
47 `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>`__
53 On success 0 is returned.
55 On error -1 is returned, and the ``errno`` variable is set
58 Generic error codes are described at the
59 :ref:`Generic Error Codes <gen-errors>` chapter.