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-.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
-.. c:namespace:: DTV.video
-
-.. _video_fopen:
-
-================
-dvb video open()
-================
-
-Name
-----
-
-dvb video open()
-
-.. attention:: This ioctl is deprecated.
-
-Synopsis
---------
-
-.. c:function:: int open(const char *deviceName, int flags)
-
-Arguments
----------
-
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
-
- - .. row 1
-
- - const char \*deviceName
-
- - Name of specific video device.
-
- - .. row 2
-
- - int flags
-
- - A bit-wise OR of the following flags:
-
- - .. row 3
-
- -
- - O_RDONLY read-only access
-
- - .. row 4
-
- -
- - O_RDWR read/write access
-
- - .. row 5
-
- -
- - O_NONBLOCK open in non-blocking mode
-
- - .. row 6
-
- -
- - (blocking mode is the default)
-
-Description
------------
-
-This system call opens a named video device (e.g.
-/dev/dvb/adapter0/video0) for subsequent use.
-
-When an open() call has succeeded, the device will be ready for use. The
-significance of blocking or non-blocking mode is described in the
-documentation for functions where there is a difference. It does not
-affect the semantics of the open() call itself. A device opened in
-blocking mode can later be put into non-blocking mode (and vice versa)
-using the F_SETFL command of the fcntl system call. This is a standard
-system call, documented in the Linux manual page for fcntl. Only one
-user can open the Video Device in O_RDWR mode. All other attempts to
-open the device in this mode will fail, and an error-code will be
-returned. If the Video Device is opened in O_RDONLY mode, the only
-ioctl call that can be used is VIDEO_GET_STATUS. All other call will
-return an error code.
-
-Return Value
-------------
-
-.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
-
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
-
- - .. row 1
-
- - ``ENODEV``
-
- - Device driver not loaded/available.
-
- - .. row 2
-
- - ``EINTERNAL``
-
- - Internal error.
-
- - .. row 3
-
- - ``EBUSY``
-
- - Device or resource busy.
-
- - .. row 4
-
- - ``EINVAL``
-
- - Invalid argument.