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diff --git a/Documentation/media/uapi/dvb/fe-set-tone.rst b/Documentation/media/uapi/dvb/fe-set-tone.rst deleted file mode 100644 index fb605e8c9fc4..000000000000 --- a/Documentation/media/uapi/dvb/fe-set-tone.rst +++ /dev/null @@ -1,65 +0,0 @@ -.. Permission is granted to copy, distribute and/or modify this -.. document under the terms of the GNU Free Documentation License, -.. Version 1.1 or any later version published by the Free Software -.. Foundation, with no Invariant Sections, no Front-Cover Texts -.. and no Back-Cover Texts. A copy of the license is included at -.. Documentation/media/uapi/fdl-appendix.rst. -.. -.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections - -.. _FE_SET_TONE: - -***************** -ioctl FE_SET_TONE -***************** - -Name -==== - -FE_SET_TONE - Sets/resets the generation of the continuous 22kHz tone. - - -Synopsis -======== - -.. c:function:: int ioctl( int fd, FE_SET_TONE, enum fe_sec_tone_mode tone ) - :name: FE_SET_TONE - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() <frontend_f_open>`. - -``tone`` - an integer enumered value described at :c:type:`fe_sec_tone_mode` - - -Description -=========== - -This ioctl is used to set the generation of the continuous 22kHz tone. -This call requires read/write permissions. - -Usually, satellite antenna subsystems require that the digital TV device -to send a 22kHz tone in order to select between high/low band on some -dual-band LNBf. It is also used to send signals to DiSEqC equipment, but -this is done using the DiSEqC ioctls. - -.. attention:: If more than one device is connected to the same antenna, - setting a tone may interfere on other devices, as they may lose the - capability of selecting the band. So, it is recommended that applications - would change to SEC_TONE_OFF when the device is not used. - - -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. |