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Diffstat (limited to 'Documentation/userspace-api/media/dvb/frontend_f_close.rst')
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diff --git a/Documentation/userspace-api/media/dvb/frontend_f_close.rst b/Documentation/userspace-api/media/dvb/frontend_f_close.rst new file mode 100644 index 000000000000..582e19a83c1a --- /dev/null +++ b/Documentation/userspace-api/media/dvb/frontend_f_close.rst @@ -0,0 +1,57 @@ +.. 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/userspace-api/media/fdl-appendix.rst. +.. +.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections + +.. _frontend_f_close: + +*************************** +Digital TV frontend close() +*************************** + +Name +==== + +fe-close - Close a frontend device + + +Synopsis +======== + +.. code-block:: c + + #include <unistd.h> + + +.. c:function:: int close( int fd ) + :name: dvb-fe-close + +Arguments +========= + +``fd`` + File descriptor returned by :c:func:`open() <dvb-fe-open>`. + + +Description +=========== + +This system call closes a previously opened front-end device. After +closing a front-end device, its corresponding hardware might be powered +down automatically. + + +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. |