1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2.. c:namespace:: DTV.fe 3 4.. _frontend_f_close: 5 6*************************** 7Digital TV frontend close() 8*************************** 9 10Name 11==== 12 13fe-close - Close a frontend device 14 15Synopsis 16======== 17 18.. code-block:: c 19 20 #include <unistd.h> 21 22.. c:function:: int close( int fd ) 23 24Arguments 25========= 26 27``fd`` 28 File descriptor returned by :c:func:`open()`. 29 30Description 31=========== 32 33This system call closes a previously opened front-end device. After 34closing a front-end device, its corresponding hardware might be powered 35down automatically. 36 37Return Value 38============ 39 40On success 0 is returned. 41 42On error -1 is returned, and the ``errno`` variable is set 43appropriately. 44 45Generic error codes are described at the 46:ref:`Generic Error Codes <gen-errors>` chapter. 47