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+.. 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
+
+.. _ca_fclose:
+
+=====================
+Digital TV CA close()
+=====================
+
+Name
+----
+
+Digital TV CA close()
+
+
+Synopsis
+--------
+
+.. c:function:: int close(int fd)
+ :name: dvb-ca-close
+
+
+Arguments
+---------
+
+``fd``
+ File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
+
+Description
+-----------
+
+This system call closes a previously opened CA device.
+
+
+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.