1059b1c5bSMauro Carvalho Chehab.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 254f38fcaSMauro Carvalho Chehab 354f38fcaSMauro Carvalho Chehab.. _frontend_f_close: 454f38fcaSMauro Carvalho Chehab 554f38fcaSMauro Carvalho Chehab*************************** 654f38fcaSMauro Carvalho ChehabDigital TV frontend close() 754f38fcaSMauro Carvalho Chehab*************************** 854f38fcaSMauro Carvalho Chehab 954f38fcaSMauro Carvalho ChehabName 1054f38fcaSMauro Carvalho Chehab==== 1154f38fcaSMauro Carvalho Chehab 1254f38fcaSMauro Carvalho Chehabfe-close - Close a frontend device 1354f38fcaSMauro Carvalho Chehab 1454f38fcaSMauro Carvalho Chehab 1554f38fcaSMauro Carvalho ChehabSynopsis 1654f38fcaSMauro Carvalho Chehab======== 1754f38fcaSMauro Carvalho Chehab 1854f38fcaSMauro Carvalho Chehab.. code-block:: c 1954f38fcaSMauro Carvalho Chehab 2054f38fcaSMauro Carvalho Chehab #include <unistd.h> 2154f38fcaSMauro Carvalho Chehab 2254f38fcaSMauro Carvalho Chehab 2354f38fcaSMauro Carvalho Chehab.. c:function:: int close( int fd ) 2454f38fcaSMauro Carvalho Chehab :name: dvb-fe-close 2554f38fcaSMauro Carvalho Chehab 2654f38fcaSMauro Carvalho ChehabArguments 2754f38fcaSMauro Carvalho Chehab========= 2854f38fcaSMauro Carvalho Chehab 2954f38fcaSMauro Carvalho Chehab``fd`` 3054f38fcaSMauro Carvalho Chehab File descriptor returned by :c:func:`open() <dvb-fe-open>`. 3154f38fcaSMauro Carvalho Chehab 3254f38fcaSMauro Carvalho Chehab 3354f38fcaSMauro Carvalho ChehabDescription 3454f38fcaSMauro Carvalho Chehab=========== 3554f38fcaSMauro Carvalho Chehab 3654f38fcaSMauro Carvalho ChehabThis system call closes a previously opened front-end device. After 3754f38fcaSMauro Carvalho Chehabclosing a front-end device, its corresponding hardware might be powered 3854f38fcaSMauro Carvalho Chehabdown automatically. 3954f38fcaSMauro Carvalho Chehab 4054f38fcaSMauro Carvalho Chehab 4154f38fcaSMauro Carvalho ChehabReturn Value 4254f38fcaSMauro Carvalho Chehab============ 4354f38fcaSMauro Carvalho Chehab 4454f38fcaSMauro Carvalho ChehabOn success 0 is returned. 4554f38fcaSMauro Carvalho Chehab 4654f38fcaSMauro Carvalho ChehabOn error -1 is returned, and the ``errno`` variable is set 4754f38fcaSMauro Carvalho Chehabappropriately. 4854f38fcaSMauro Carvalho Chehab 4954f38fcaSMauro Carvalho ChehabGeneric error codes are described at the 5054f38fcaSMauro Carvalho Chehab:ref:`Generic Error Codes <gen-errors>` chapter. 51