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Diffstat (limited to 'Documentation/linux_tv/media/dvb/fe-diseqc-send-burst.rst')
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diff --git a/Documentation/linux_tv/media/dvb/fe-diseqc-send-burst.rst b/Documentation/linux_tv/media/dvb/fe-diseqc-send-burst.rst new file mode 100644 index 0000000..34c7879 --- /dev/null +++ b/Documentation/linux_tv/media/dvb/fe-diseqc-send-burst.rst @@ -0,0 +1,93 @@ +.. -*- coding: utf-8; mode: rst -*- + +.. _FE_DISEQC_SEND_BURST: + +************************** +ioctl FE_DISEQC_SEND_BURST +************************** + +*man FE_DISEQC_SEND_BURST(2)* + +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>`__ + +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. + + +.. _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 + + + + +.. ------------------------------------------------------------------------------ +.. 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 +.. ------------------------------------------------------------------------------ |