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-.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
-.. c:namespace:: DTV.audio
-
-.. _audio_fopen:
-
-=======================
-Digital TV audio open()
-=======================
-
-Name
-----
-
-Digital TV audio 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 audio 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 audio device (e.g.
-/dev/dvb/adapter0/audio0) 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 Audio 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 Audio Device is opened
-in O_RDONLY mode, the only ioctl call that can be used is
-AUDIO_GET_STATUS. All other call will return with 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
-
- - ``EBUSY``
-
- - Device or resource busy.
-
- - .. row 3
-
- - ``EINVAL``
-
- - Invalid argument.