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Diffstat (limited to 'Documentation/media/uapi/v4l/vidioc-enumaudioout.rst')
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diff --git a/Documentation/media/uapi/v4l/vidioc-enumaudioout.rst b/Documentation/media/uapi/v4l/vidioc-enumaudioout.rst deleted file mode 100644 index 3a8882214d62..000000000000 --- a/Documentation/media/uapi/v4l/vidioc-enumaudioout.rst +++ /dev/null @@ -1,67 +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 - -.. _VIDIOC_ENUMAUDOUT: - -*********************** -ioctl VIDIOC_ENUMAUDOUT -*********************** - -Name -==== - -VIDIOC_ENUMAUDOUT - Enumerate audio outputs - - -Synopsis -======== - -.. c:function:: int ioctl( int fd, VIDIOC_ENUMAUDOUT, struct v4l2_audioout *argp ) - :name: VIDIOC_ENUMAUDOUT - - -Arguments -========= - -``fd`` - File descriptor returned by :ref:`open() <func-open>`. - -``argp`` - Pointer to struct :c:type:`v4l2_audioout`. - - -Description -=========== - -To query the attributes of an audio output applications initialize the -``index`` field and zero out the ``reserved`` array of a struct -:c:type:`v4l2_audioout` and call the ``VIDIOC_G_AUDOUT`` -ioctl with a pointer to this structure. Drivers fill the rest of the -structure or return an ``EINVAL`` error code when the index is out of -bounds. To enumerate all audio outputs applications shall begin at index -zero, incrementing by one until the driver returns ``EINVAL``. - -.. note:: - - Connectors on a TV card to loop back the received audio signal - to a sound card are not audio outputs in this sense. - -See :ref:`VIDIOC_G_AUDIOout <VIDIOC_G_AUDOUT>` for a description of struct -:c:type:`v4l2_audioout`. - - -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. - -EINVAL - The number of the audio output is out of bounds. |