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authorLinus Torvalds <torvalds@linux-foundation.org>2021-06-28 15:49:58 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-06-28 15:49:58 -0700
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Merge tag 'media/v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab: - V4L2 core control API was split into separate files - New RC maps: tango and tc-90405 - Hantro driver got support for G2/HEVC decoder - av7710 is moving to staging, together with some legacy APIs - several cleanups related to compat_ioctl32 code - Move the MPEG-2 stateless control type out of staging - Address several issues with RPM get logic on media drivers - Lots of cleanups, bug fixes and improvements. * tag 'media/v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (394 commits) media: s5p-mfc: Fix display delay control creation media: mtk-vpu: on suspend, read/write regs only if vpu is running media: video-mux: Skip dangling endpoints media: Fix Media Controller API config checks media: i2c: rdacm20: Re-work ov10635 reset media: i2c: rdacm20: Check return values media: i2c: rdacm20: Report camera module name media: i2c: rdacm20: Enable noise immunity media: i2c: rdacm20: Embed 'serializer' field media: i2c: rdacm21: Power up OV10640 before OV490 media: i2c: rdacm21: Fix OV10640 powerup media: i2c: rdacm21: Add delay after OV490 reset media: i2c: max9271: Introduce wake_up() function media: i2c: max9271: Check max9271_write() return media: i2c: max9286: Rework comments in .bound() media: i2c: max9286: Define high channel amplitude media: i2c: max9286: Cache channel amplitude media: i2c: max9286: Rename reverse_channel_mv media: i2c: max9286: Adjust parameters indent media: hantro: add support for Rockchip RK3036 ...
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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.