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/userspace-api/media/fdl-appendix.rst. 7.. 8.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections 9 10.. _frontend_f_close: 11 12*************************** 13Digital TV frontend close() 14*************************** 15 16Name 17==== 18 19fe-close - Close a frontend device 20 21 22Synopsis 23======== 24 25.. code-block:: c 26 27 #include <unistd.h> 28 29 30.. c:function:: int close( int fd ) 31 :name: dvb-fe-close 32 33Arguments 34========= 35 36``fd`` 37 File descriptor returned by :c:func:`open() <dvb-fe-open>`. 38 39 40Description 41=========== 42 43This system call closes a previously opened front-end device. After 44closing a front-end device, its corresponding hardware might be powered 45down automatically. 46 47 48Return Value 49============ 50 51On success 0 is returned. 52 53On error -1 is returned, and the ``errno`` variable is set 54appropriately. 55 56Generic error codes are described at the 57:ref:`Generic Error Codes <gen-errors>` chapter. 58