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media: docs: make DVB documents more compatible with Sphinx 3.1+

Browse source 
Sphinx 3.x broke support for the cdomain.py extension, as the
c domain code was rewritten. Due to that, the c tags need to
be re-written, in order to use the new c domain notation.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab 2020-09-24 16:56:00 +02:00
parent 407e84cd1e
commit f9b2e8aa32
95 changed files with 329 additions and 534 deletions
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7
Documentation/userspace-api/media/dvb/audio-bilingual-channel-select.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_BILINGUAL_CHANNEL_SELECT:
@ -16,9 +17,9 @@ AUDIO_BILINGUAL_CHANNEL_SELECT
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_BILINGUAL_CHANNEL_SELECT, struct *audio_channel_select)
:name: AUDIO_BILINGUAL_CHANNEL_SELECT
.. c:macro:: AUDIO_BILINGUAL_CHANNEL_SELECT
``int ioctl(int fd, AUDIO_BILINGUAL_CHANNEL_SELECT, struct audio_channel_select *select)``
Arguments
---------
@ -39,7 +40,6 @@ Arguments
- Select the output format of the audio (mono left/right, stereo).
Description
-----------
@ -50,7 +50,6 @@ for MPEG decoders controlled through V4L2.
This ioctl call asks the Audio Device to select the requested channel
for bilingual streams if possible.
Return Value
------------

8
Documentation/userspace-api/media/dvb/audio-channel-select.rst
View file

@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_CHANNEL_SELECT:
@ -16,9 +17,9 @@ AUDIO_CHANNEL_SELECT
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_CHANNEL_SELECT, struct *audio_channel_select)
:name: AUDIO_CHANNEL_SELECT
.. c:macro:: AUDIO_CHANNEL_SELECT
``int ioctl(int fd, AUDIO_CHANNEL_SELECT, struct audio_channel_select *select)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
-
- int fd
@ -40,7 +40,6 @@ Arguments
- Select the output format of the audio (mono left/right, stereo).
Description
-----------
@ -50,7 +49,6 @@ V4L2 ``V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK`` control instead.
This ioctl call asks the Audio Device to select the requested channel if
possible.
Return Value
------------

8
Documentation/userspace-api/media/dvb/audio-clear-buffer.rst
View file

@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_CLEAR_BUFFER:
@ -16,8 +17,9 @@ AUDIO_CLEAR_BUFFER
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_CLEAR_BUFFER)
:name: AUDIO_CLEAR_BUFFER
.. c:macro:: AUDIO_CLEAR_BUFFER
``int ioctl(int fd, AUDIO_CLEAR_BUFFER)``
Arguments
---------
@ -26,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -39,7 +40,6 @@ Description
This ioctl call asks the Audio Device to clear all software and hardware
buffers of the audio decoder device.
Return Value
------------

7
Documentation/userspace-api/media/dvb/audio-continue.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_CONTINUE:
@ -16,9 +17,9 @@ AUDIO_CONTINUE
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_CONTINUE)
:name: AUDIO_CONTINUE
.. c:macro:: AUDIO_CONTINUE
``int ioctl(int fd, AUDIO_CONTINUE)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -40,7 +40,6 @@ Description
This ioctl restarts the decoding and playing process previously paused
with AUDIO_PAUSE command.
Return Value
------------

7
Documentation/userspace-api/media/dvb/audio-fclose.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _audio_fclose:
@ -17,8 +18,6 @@ Synopsis
--------
.. c:function:: int close(int fd)
:name: dvb-audio-close
Arguments
---------
@ -27,20 +26,17 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
- File descriptor returned by a previous call to open().
Description
-----------
This system call closes a previously opened audio device.
Return Value
------------
@ -48,7 +44,6 @@ Return Value
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EBADF``

7
Documentation/userspace-api/media/dvb/audio-fopen.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _audio_fopen:
@ -17,8 +18,6 @@ Synopsis
--------
.. c:function:: int open(const char *deviceName, int flags)
:name: dvb-audio-open
Arguments
---------
@ -27,7 +26,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- const char \*deviceName
@ -60,7 +58,6 @@ Arguments
-
- (blocking mode is the default)
Description
-----------
@ -78,7 +75,6 @@ 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
------------
@ -88,7 +84,6 @@ Return Value
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``ENODEV``

7
Documentation/userspace-api/media/dvb/audio-fwrite.rst
View file

@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _audio_fwrite:
@ -17,8 +18,6 @@ Synopsis
--------
.. c:function:: size_t write(int fd, const void *buf, size_t count)
:name: dvb-audio-write
Arguments
---------
@ -27,7 +26,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,7 +44,6 @@ Arguments
- Size of buf.
Description
-----------
@ -56,7 +53,6 @@ PES format. If O_NONBLOCK is not specified the function will block
until buffer space is available. The amount of data to be transferred is
implied by count.
Return Value
------------
@ -64,7 +60,6 @@ Return Value
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EPERM``

8
Documentation/userspace-api/media/dvb/audio-get-capabilities.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_GET_CAPABILITIES:
@ -16,9 +17,9 @@ AUDIO_GET_CAPABILITIES
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_GET_CAPABILITIES, unsigned int *cap)
:name: AUDIO_GET_CAPABILITIES
.. c:macro:: AUDIO_GET_CAPABILITIES
``int ioctl(int fd, AUDIO_GET_CAPABILITIES, unsigned int *cap)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
-
- int fd
@ -40,14 +40,12 @@ Arguments
- Returns a bit array of supported sound formats.
Description
-----------
This ioctl call asks the Audio Device to tell us about the decoding
capabilities of the audio hardware.
Return Value
------------

8
Documentation/userspace-api/media/dvb/audio-get-status.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_GET_STATUS:
@ -16,9 +17,9 @@ AUDIO_GET_STATUS
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_GET_STATUS, struct audio_status *status)
:name: AUDIO_GET_STATUS
.. c:macro:: AUDIO_GET_STATUS
``int ioctl(int fd, AUDIO_GET_STATUS, struct audio_status *status)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
-
- int fd
@ -40,14 +40,12 @@ Arguments
- Returns the current state of Audio Device.
Description
-----------
This ioctl call asks the Audio Device to return the current state of the
Audio Device.
Return Value
------------

9
Documentation/userspace-api/media/dvb/audio-pause.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_PAUSE:
@ -16,8 +17,9 @@ AUDIO_PAUSE
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_PAUSE)
:name: AUDIO_PAUSE
.. c:macro:: AUDIO_PAUSE
``int ioctl(int fd, AUDIO_PAUSE)``
Arguments
---------
@ -26,14 +28,12 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
- File descriptor returned by a previous call to open().
Description
-----------
@ -41,7 +41,6 @@ This ioctl call suspends the audio stream being played. Decoding and
playing are paused. It is then possible to restart again decoding and
playing process of the audio stream using AUDIO_CONTINUE command.
Return Value
------------

7
Documentation/userspace-api/media/dvb/audio-play.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_PLAY:
@ -16,9 +17,9 @@ AUDIO_PLAY
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_PLAY)
:name: AUDIO_PLAY
.. c:macro:: AUDIO_PLAY
``int ioctl(int fd, AUDIO_PLAY)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -40,7 +40,6 @@ Description
This ioctl call asks the Audio Device to start playing an audio stream
from the selected source.
Return Value
------------

8
Documentation/userspace-api/media/dvb/audio-select-source.rst
View file

@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_SELECT_SOURCE:
@ -16,9 +17,9 @@ AUDIO_SELECT_SOURCE
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_SELECT_SOURCE, struct audio_stream_source *source)
:name: AUDIO_SELECT_SOURCE
.. c:macro:: AUDIO_SELECT_SOURCE
``int ioctl(int fd, AUDIO_SELECT_SOURCE, struct audio_stream_source *source)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
-
- int fd
@ -40,7 +40,6 @@ Arguments
- Indicates the source that shall be used for the Audio stream.
Description
-----------
@ -49,7 +48,6 @@ the input data. The possible sources are demux or memory. If
AUDIO_SOURCE_MEMORY is selected, the data is fed to the Audio Device
through the write command.
Return Value
------------

8
Documentation/userspace-api/media/dvb/audio-set-av-sync.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_SET_AV_SYNC:
@ -16,9 +17,9 @@ AUDIO_SET_AV_SYNC
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_SET_AV_SYNC, boolean state)
:name: AUDIO_SET_AV_SYNC
.. c:macro:: AUDIO_SET_AV_SYNC
``int ioctl(int fd, AUDIO_SET_AV_SYNC, boolean state)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
-
- int fd
@ -44,14 +44,12 @@ Arguments
FALSE: AV-sync OFF
Description
-----------
This ioctl call asks the Audio Device to turn ON or OFF A/V
synchronization.
Return Value
------------

9
Documentation/userspace-api/media/dvb/audio-set-bypass-mode.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_SET_BYPASS_MODE:
@ -16,8 +17,9 @@ AUDIO_SET_BYPASS_MODE
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_SET_BYPASS_MODE, boolean mode)
:name: AUDIO_SET_BYPASS_MODE
.. c:macro:: AUDIO_SET_BYPASS_MODE
``int ioctl(int fd, AUDIO_SET_BYPASS_MODE, boolean mode)``
Arguments
---------
@ -26,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
-
- int fd
@ -44,7 +45,6 @@ Arguments
FALSE: Bypass is enabled
Description
-----------
@ -54,7 +54,6 @@ that can’t be handled by the Digital TV system shall be decoded. Dolby
DigitalTM streams are automatically forwarded by the Digital TV subsystem if
the hardware can handle it.
Return Value
------------

9
Documentation/userspace-api/media/dvb/audio-set-id.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_SET_ID:
@ -16,8 +17,9 @@ AUDIO_SET_ID
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_SET_ID, int id)
:name: AUDIO_SET_ID
.. c:macro:: AUDIO_SET_ID
``int ioctl(int fd, AUDIO_SET_ID, int id)``
Arguments
---------
@ -26,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
-
- int fd
@ -39,7 +40,6 @@ Arguments
- audio sub-stream id
Description
-----------
@ -51,7 +51,6 @@ other stream types. If the stream type is set the id just specifies the
substream id of the audio stream and only the first 5 bits are
recognized.
Return Value
------------

9
Documentation/userspace-api/media/dvb/audio-set-mixer.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_SET_MIXER:
@ -16,8 +17,9 @@ AUDIO_SET_MIXER
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_SET_MIXER, struct audio_mixer *mix)
:name: AUDIO_SET_MIXER
.. c:macro:: AUDIO_SET_MIXER
``int ioctl(int fd, AUDIO_SET_MIXER, struct audio_mixer *mix)``
Arguments
---------
@ -26,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
-
- int fd
@ -39,13 +40,11 @@ Arguments
- mixer settings.
Description
-----------
This ioctl lets you adjust the mixer settings of the audio decoder.
Return Value
------------

8
Documentation/userspace-api/media/dvb/audio-set-mute.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_SET_MUTE:
@ -16,9 +17,9 @@ AUDIO_SET_MUTE
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_SET_MUTE, boolean state)
:name: AUDIO_SET_MUTE
.. c:macro:: AUDIO_SET_MUTE
``int ioctl(int fd, AUDIO_SET_MUTE, boolean state)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
-
- int fd
@ -44,7 +44,6 @@ Arguments
FALSE: Audio Un-mute
Description
-----------
@ -55,7 +54,6 @@ V4L2 :ref:`VIDIOC_DECODER_CMD` with the
This ioctl call asks the audio device to mute the stream that is
currently being played.
Return Value
------------

10
Documentation/userspace-api/media/dvb/audio-set-streamtype.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_SET_STREAMTYPE:
@ -16,9 +17,9 @@ AUDIO_SET_STREAMTYPE
Synopsis
--------
.. c:function:: int ioctl(fd, AUDIO_SET_STREAMTYPE, int type)
:name: AUDIO_SET_STREAMTYPE
.. c:macro:: AUDIO_SET_STREAMTYPE
``int ioctl(fd, AUDIO_SET_STREAMTYPE, int type)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
-
- int fd
@ -40,7 +40,6 @@ Arguments
- stream type
Description
-----------
@ -48,7 +47,6 @@ This ioctl tells the driver which kind of audio stream to expect. This
is useful if the stream offers several audio sub-streams like LPCM and
AC3.
Return Value
------------
@ -57,12 +55,10 @@ appropriately. The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EINVAL``

9
Documentation/userspace-api/media/dvb/audio-stop.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_STOP:
@ -16,8 +17,9 @@ AUDIO_STOP
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_STOP)
:name: AUDIO_STOP
.. c:macro:: AUDIO_STOP
``int ioctl(int fd, AUDIO_STOP)``
Arguments
---------
@ -26,21 +28,18 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
- File descriptor returned by a previous call to open().
Description
-----------
This ioctl call asks the Audio Device to stop playing the current
stream.
Return Value
------------

7
Documentation/userspace-api/media/dvb/ca-fclose.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.ca
.. _ca_fclose:
@ -11,26 +12,22 @@ 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>`.
File descriptor returned by a previous call to :c:func:`open()`.
Description
-----------
This system call closes a previously opened CA device.
Return Value
------------

7
Documentation/userspace-api/media/dvb/ca-fopen.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.ca
.. _ca_fopen:
@ -11,13 +12,10 @@ Name
Digital TV CA open()
Synopsis
--------
.. c:function:: int open(const char *name, int flags)
:name: dvb-ca-open
Arguments
---------
@ -45,7 +43,6 @@ Arguments
- open in non-blocking mode
(blocking mode is the default)
Description
-----------
@ -63,11 +60,9 @@ Only one user can open the CA Device in ``O_RDWR`` mode. All other
attempts to open the device in this mode will fail, and an error code
will be returned.
Return Value
------------
On success 0 is returned.
On error -1 is returned, and the ``errno`` variable is set

8
Documentation/userspace-api/media/dvb/ca-get-cap.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.ca
.. _CA_GET_CAP:
@ -11,19 +12,18 @@ Name
CA_GET_CAP
Synopsis
--------
.. c:function:: int ioctl(fd, CA_GET_CAP, struct ca_caps *caps)
:name: CA_GET_CAP
.. c:macro:: CA_GET_CAP
``int ioctl(fd, CA_GET_CAP, struct ca_caps *caps)``
Arguments
---------
``fd``
File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
File descriptor returned by a previous call to :c:func:`open()`.
``caps``
Pointer to struct :c:type:`ca_caps`.

9
Documentation/userspace-api/media/dvb/ca-get-descr-info.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.ca
.. _CA_GET_DESCR_INFO:
@ -11,18 +12,18 @@ Name
CA_GET_DESCR_INFO
Synopsis
--------
.. c:function:: int ioctl(fd, CA_GET_DESCR_INFO, struct ca_descr_info *desc)
:name: CA_GET_DESCR_INFO
.. c:macro:: CA_GET_DESCR_INFO
``int ioctl(fd, CA_GET_DESCR_INFO, struct ca_descr_info *desc)``
Arguments
---------
``fd``
File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
File descriptor returned by a previous call to :c:func:`open()`.
``desc``
Pointer to struct :c:type:`ca_descr_info`.

10
Documentation/userspace-api/media/dvb/ca-get-msg.rst
View file

@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.ca
.. _CA_GET_MSG:
@ -11,19 +12,18 @@ Name
CA_GET_MSG
Synopsis
--------
.. c:function:: int ioctl(fd, CA_GET_MSG, struct ca_msg *msg)
:name: CA_GET_MSG
.. c:macro:: CA_GET_MSG
``int ioctl(fd, CA_GET_MSG, struct ca_msg *msg)``
Arguments
---------
``fd``
File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
File descriptor returned by a previous call to :c:func:`open()`.
``msg``
Pointer to struct :c:type:`ca_msg`.
@ -38,11 +38,9 @@ Receives a message via a CI CA module.
Please notice that, on most drivers, this is done by reading from
the /dev/adapter?/ca? device node.
Return Value
------------
On success 0 is returned.
On error -1 is returned, and the ``errno`` variable is set

9
Documentation/userspace-api/media/dvb/ca-get-slot-info.rst
View file

@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.ca
.. _CA_GET_SLOT_INFO:
@ -11,19 +12,18 @@ Name
CA_GET_SLOT_INFO
Synopsis
--------
.. c:function:: int ioctl(fd, CA_GET_SLOT_INFO, struct ca_slot_info *info)
:name: CA_GET_SLOT_INFO
.. c:macro:: CA_GET_SLOT_INFO
``int ioctl(fd, CA_GET_SLOT_INFO, struct ca_slot_info *info)``
Arguments
---------
``fd``
File descriptor returned by a previous call to :c:func:`open() <cec-open>`.
File descriptor returned by a previous call to :c:func:`open()`.
``info``
Pointer to struct :c:type:`ca_slot_info`.
@ -34,7 +34,6 @@ Description
Returns information about a CA slot identified by
:c:type:`ca_slot_info`.slot_num.
Return Value
------------

9
Documentation/userspace-api/media/dvb/ca-reset.rst
View file

@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.ca
.. _CA_RESET:
@ -11,19 +12,18 @@ Name
CA_RESET
Synopsis
--------
.. c:function:: int ioctl(fd, CA_RESET)
:name: CA_RESET
.. c:macro:: CA_RESET
``int ioctl(fd, CA_RESET)``
Arguments
---------
``fd``
File descriptor returned by a previous call to :c:func:`open() <cec-open>`.
File descriptor returned by a previous call to :c:func:`open()`.
Description
-----------
@ -31,7 +31,6 @@ Description
Puts the Conditional Access hardware on its initial state. It should
be called before start using the CA hardware.
Return Value
------------

9
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.ca
.. _CA_SEND_MSG:
@ -11,24 +12,22 @@ Name
CA_SEND_MSG
Synopsis
--------
.. c:function:: int ioctl(fd, CA_SEND_MSG, struct ca_msg *msg)
:name: CA_SEND_MSG
.. c:macro:: CA_SEND_MSG
``int ioctl(fd, CA_SEND_MSG, struct ca_msg *msg)``
Arguments
---------
``fd``
File descriptor returned by a previous call to :c:func:`open() <cec-open>`.
File descriptor returned by a previous call to :c:func:`open()`.
``msg``
Pointer to struct :c:type:`ca_msg`.
Description
-----------

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.ca
.. _CA_SET_DESCR:
@ -11,19 +12,18 @@ Name
CA_SET_DESCR
Synopsis
--------
.. c:function:: int ioctl(fd, CA_SET_DESCR, struct ca_descr *desc)
:name: CA_SET_DESCR
.. c:macro:: CA_SET_DESCR
``int ioctl(fd, CA_SET_DESCR, struct ca_descr *desc)``
Arguments
---------
``fd``
File descriptor returned by a previous call to :c:func:`open() <cec-open>`.
File descriptor returned by a previous call to :c:func:`open()`.
``msg``
Pointer to struct :c:type:`ca_descr`.

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _DMX_ADD_PID:
@ -11,24 +12,22 @@ Name
DMX_ADD_PID
Synopsis
--------
.. c:function:: int ioctl(fd, DMX_ADD_PID, __u16 *pid)
:name: DMX_ADD_PID
.. c:macro:: DMX_ADD_PID
``int ioctl(fd, DMX_ADD_PID, __u16 *pid)``
Arguments
---------
``fd``
File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
File descriptor returned by :c:func:`open()`.
``pid``
PID number to be filtered.
Description
-----------
@ -36,7 +35,6 @@ This ioctl call allows to add multiple PIDs to a transport stream filter
previously set up with :ref:`DMX_SET_PES_FILTER` and output equal to
:c:type:`DMX_OUT_TSDEMUX_TAP <dmx_output>`.
Return Value
------------

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _DMX_EXPBUF:
@ -13,24 +14,22 @@ DMX_EXPBUF - Export a buffer as a DMABUF file descriptor.
.. warning:: this API is still experimental
Synopsis
========
.. c:function:: int ioctl( int fd, DMX_EXPBUF, struct dmx_exportbuffer *argp )
:name: DMX_EXPBUF
.. c:macro:: DMX_EXPBUF
``int ioctl(int fd, DMX_EXPBUF, struct dmx_exportbuffer *argp)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <dmx_fopen>`.
File descriptor returned by :c:func:`open()`.
``argp``
Pointer to struct :c:type:`dmx_exportbuffer`.
Description
===========
@ -54,11 +53,9 @@ driver, on success. This is a DMABUF file descriptor. The application may
pass it to other DMABUF-aware devices. It is recommended to close a DMABUF
file when it is no longer used to allow the associated memory to be reclaimed.
Examples
========
.. code-block:: c
int buffer_export(int v4lfd, enum dmx_buf_type bt, int index, int *dmafd)

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _dmx_fclose:
@ -11,27 +12,23 @@ Name
Digital TV demux close()
Synopsis
--------
.. c:function:: int close(int fd)
:name: dvb-dmx-close
Arguments
---------
``fd``
File descriptor returned by a previous call to
:c:func:`open() <dvb-dmx-open>`.
:c:func:`open()`.
Description
-----------
This system call deactivates and deallocates a filter that was
previously allocated via the :c:func:`open() <dvb-dmx-open>` call.
previously allocated via the :c:func:`open()` call.
Return Value
------------

5
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _dmx_fopen:
@ -11,12 +12,10 @@ Name
Digital TV demux open()
Synopsis
--------
.. c:function:: int open(const char *deviceName, int flags)
:name: dvb-dmx-open
Arguments
---------
@ -47,7 +46,6 @@ Arguments
- open in non-blocking mode
(blocking mode is the default)
Description
-----------
@ -68,7 +66,6 @@ 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.
Return Value
------------

7
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _dmx_fread:
@ -11,18 +12,16 @@ Name
Digital TV demux read()
Synopsis
--------
.. c:function:: size_t read(int fd, void *buf, size_t count)
:name: dvb-dmx-read
Arguments
---------
``fd``
File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
File descriptor returned by a previous call to :c:func:`open()`.
``buf``
Buffer to be filled
@ -44,7 +43,6 @@ to be transferred is implied by count.
:c:type:`DMX_CHECK_CRC <dmx_sct_filter_params>` flag set,
data that fails on CRC check will be silently ignored.
Return Value
------------
@ -75,6 +73,5 @@ appropriately.
- The driver failed to write to the callers buffer due to an
invalid \*buf pointer.
The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.

6
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _dmx_fwrite:
@ -11,18 +12,16 @@ Name
Digital TV demux write()
Synopsis
--------
.. c:function:: ssize_t write(int fd, const void *buf, size_t count)
:name: dvb-dmx-write
Arguments
---------
``fd``
File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
File descriptor returned by a previous call to :c:func:`open()`.
``buf``
Buffer with data to be written
@ -40,7 +39,6 @@ digitally recorded Transport Stream. Matching filters have to be defined
in the corresponding physical demux device, ``/dev/dvb/adapter?/demux?``.
The amount of data to be transferred is implied by count.
Return Value
------------

12
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _DMX_GET_PES_PIDS:
@ -11,23 +12,22 @@ Name
DMX_GET_PES_PIDS
Synopsis
--------
.. c:function:: int ioctl(fd, DMX_GET_PES_PIDS, __u16 pids[5])
:name: DMX_GET_PES_PIDS
.. c:macro:: DMX_GET_PES_PIDS
``int ioctl(fd, DMX_GET_PES_PIDS, __u16 pids[5])``
Arguments
---------
``fd``
File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
File descriptor returned by :c:func:`open()`.
``pids``
Array used to store 5 Program IDs.
Description
-----------
@ -45,13 +45,11 @@ pids[DMX_PES_SUBTITLE] 3 first subtitle PID
pids[DMX_PES_PCR] 4 first Program Clock Reference PID
======================= ======== =======================================
.. note::
A value equal to 0xffff means that the PID was not filled by the
Kernel.
Return Value
------------

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _DMX_GET_STC:
@ -11,23 +12,22 @@ Name
DMX_GET_STC
Synopsis
--------
.. c:function:: int ioctl( int fd, DMX_GET_STC, struct dmx_stc *stc)
:name: DMX_GET_STC
.. c:macro:: DMX_GET_STC
``int ioctl(int fd, DMX_GET_STC, struct dmx_stc *stc)``
Arguments
---------
``fd``
File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
File descriptor returned by :c:func:`open()`.
``stc``
Pointer to :c:type:`dmx_stc` where the stc data is to be stored.
Description
-----------
@ -39,7 +39,6 @@ The result is returned in form of a ratio with a 64 bit numerator
and a 32 bit denominator, so the real 90kHz STC value is
``stc->stc / stc->base``.
Return Value
------------
@ -61,6 +60,5 @@ appropriately.
- Invalid stc number.
The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _dmx-mmap:
@ -21,9 +22,7 @@ Synopsis
#include <unistd.h>
#include <sys/mman.h>
.. c:function:: void *mmap( void *start, size_t length, int prot, int flags, int fd, off_t offset )
:name: dmx-mmap
Arguments
=========
@ -54,7 +53,7 @@ Arguments
``MAP_FIXED`` requests that the driver selects no other address than
the one specified. If the specified address cannot be used,
:ref:`mmap() <dmx-mmap>` will fail. If ``MAP_FIXED`` is specified,
:c:func:`mmap()` will fail. If ``MAP_FIXED`` is specified,
``start`` must be a multiple of the pagesize. Use of this option is
discouraged.
@ -69,17 +68,16 @@ Arguments
flags.
``fd``
File descriptor returned by :ref:`open() <dmx_fopen>`.
File descriptor returned by :c:func:`open()`.
``offset``
Offset of the buffer in device memory, as returned by
:ref:`DMX_QUERYBUF` ioctl.
Description
===========
The :ref:`mmap() <dmx-mmap>` function asks to map ``length`` bytes starting at
The :c:func:`mmap()` function asks to map ``length`` bytes starting at
``offset`` in the memory of the device specified by ``fd`` into the
application address space, preferably at address ``start``. This latter
address is a hint only, and is usually specified as 0.
@ -88,13 +86,12 @@ Suitable length and offset parameters are queried with the
:ref:`DMX_QUERYBUF` ioctl. Buffers must be allocated with the
:ref:`DMX_REQBUFS` ioctl before they can be queried.
To unmap buffers the :ref:`munmap() <dmx-munmap>` function is used.
To unmap buffers the :c:func:`munmap()` function is used.
Return Value
============
On success :ref:`mmap() <dmx-mmap>` returns a pointer to the mapped buffer. On
On success :c:func:`mmap()` returns a pointer to the mapped buffer. On
error ``MAP_FAILED`` (-1) is returned, and the ``errno`` variable is set
appropriately. Possible error codes are:

14
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _dmx-munmap:
@ -13,7 +14,6 @@ dmx-munmap - Unmap device memory
.. warning:: This API is still experimental.
Synopsis
========
@ -22,33 +22,29 @@ Synopsis
#include <unistd.h>
#include <sys/mman.h>
.. c:function:: int munmap( void *start, size_t length )
:name: dmx-munmap
Arguments
=========
``start``
Address of the mapped buffer as returned by the
:ref:`mmap() <dmx-mmap>` function.
:c:func:`mmap()` function.
``length``
Length of the mapped buffer. This must be the same value as given to
:ref:`mmap() <dmx-mmap>`.
:c:func:`mmap()`.
Description
===========
Unmaps a previously with the :ref:`mmap() <dmx-mmap>` function mapped
Unmaps a previously with the :c:func:`mmap()` function mapped
buffer and frees it, if possible.
Return Value
============
On success :ref:`munmap() <dmx-munmap>` returns 0, on failure -1 and the
On success :c:func:`munmap()` returns 0, on failure -1 and the
``errno`` variable is set appropriately:
EINVAL

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _DMX_QBUF:
@ -13,27 +14,26 @@ DMX_QBUF - DMX_DQBUF - Exchange a buffer with the driver
.. warning:: this API is still experimental
Synopsis
========
.. c:function:: int ioctl( int fd, DMX_QBUF, struct dmx_buffer *argp )
:name: DMX_QBUF
.. c:macro:: DMX_QBUF
.. c:function:: int ioctl( int fd, DMX_DQBUF, struct dmx_buffer *argp )
:name: DMX_DQBUF
``int ioctl(int fd, DMX_QBUF, struct dmx_buffer *argp)``
.. c:macro:: DMX_DQBUF
``int ioctl(int fd, DMX_DQBUF, struct dmx_buffer *argp)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <dmx_fopen>`.
File descriptor returned by :c:func:`open()`.
``argp``
Pointer to struct :c:type:`dmx_buffer`.
Description
===========
@ -60,13 +60,12 @@ the driver fills the remaining fields or returns an error code.
By default ``DMX_DQBUF`` blocks when no buffer is in the outgoing
queue. When the ``O_NONBLOCK`` flag was given to the
:ref:`open() <dmx_fopen>` function, ``DMX_DQBUF`` returns
:c:func:`open()` function, ``DMX_DQBUF`` returns
immediately with an ``EAGAIN`` error code when no buffer is available.
The struct :c:type:`dmx_buffer` structure is specified in
:ref:`buffer`.
Return Value
============

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _DMX_QUERYBUF:
@ -13,24 +14,22 @@ DMX_QUERYBUF - Query the status of a buffer
.. warning:: this API is still experimental
Synopsis
========
.. c:function:: int ioctl( int fd, DMX_QUERYBUF, struct dvb_buffer *argp )
:name: DMX_QUERYBUF
.. c:macro:: DMX_QUERYBUF
``int ioctl(int fd, DMX_QUERYBUF, struct dvb_buffer *argp)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <dmx_fopen>`.
File descriptor returned by :c:func:`open()`.
``argp``
Pointer to struct :c:type:`dvb_buffer`.
Description
===========

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _DMX_REMOVE_PID:
@ -11,24 +12,22 @@ Name
DMX_REMOVE_PID
Synopsis
--------
.. c:function:: int ioctl(fd, DMX_REMOVE_PID, __u16 *pid)
:name: DMX_REMOVE_PID
.. c:macro:: DMX_REMOVE_PID
``int ioctl(fd, DMX_REMOVE_PID, __u16 *pid)``
Arguments
---------
``fd``
File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
File descriptor returned by :c:func:`open()`.
``pid``
PID of the PES filter to be removed.
Description
-----------
@ -37,7 +36,6 @@ transport stream filter, e. g. a filter previously set up with output
equal to :c:type:`DMX_OUT_TSDEMUX_TAP <dmx_output>`, created via either
:ref:`DMX_SET_PES_FILTER` or :ref:`DMX_ADD_PID`.
Return Value
------------

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _DMX_REQBUFS:
@ -13,19 +14,18 @@ DMX_REQBUFS - Initiate Memory Mapping and/or DMA buffer I/O
.. warning:: this API is still experimental
Synopsis
========
.. c:function:: int ioctl( int fd, DMX_REQBUFS, struct dmx_requestbuffers *argp )
:name: DMX_REQBUFS
.. c:macro:: DMX_REQBUFS
``int ioctl(int fd, DMX_REQBUFS, struct dmx_requestbuffers *argp)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <dmx_fopen>`.
File descriptor returned by :c:func:`open()`.
``argp``
Pointer to struct :c:type:`dmx_requestbuffers`.
@ -64,7 +64,6 @@ buffers, however this cannot succeed when any buffers are still mapped.
A ``count`` value of zero frees all buffers, after aborting or finishing
any DMA in progress.
Return Value
============

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _DMX_SET_BUFFER_SIZE:
@ -11,19 +12,18 @@ Name
DMX_SET_BUFFER_SIZE
Synopsis
--------
.. c:function:: int ioctl( int fd, DMX_SET_BUFFER_SIZE, unsigned long size)
:name: DMX_SET_BUFFER_SIZE
.. c:macro:: DMX_SET_BUFFER_SIZE
``int ioctl(int fd, DMX_SET_BUFFER_SIZE, unsigned long size)``
Arguments
---------
``fd``
File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
File descriptor returned by :c:func:`open()`.
``size``
Unsigned long size
@ -36,11 +36,9 @@ filtered data. The default size is two maximum sized sections, i.e. if
this function is not called a buffer size of ``2 * 4096`` bytes will be
used.
Return Value
------------
On success 0 is returned.
On error -1 is returned, and the ``errno`` variable is set

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _DMX_SET_FILTER:
@ -11,24 +12,23 @@ Name
DMX_SET_FILTER
Synopsis
--------
.. c:function:: int ioctl( int fd, DMX_SET_FILTER, struct dmx_sct_filter_params *params)
:name: DMX_SET_FILTER
.. c:macro:: DMX_SET_FILTER
``int ioctl(int fd, DMX_SET_FILTER, struct dmx_sct_filter_params *params)``
Arguments
---------
``fd``
File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
File descriptor returned by :c:func:`open()`.
``params``
Pointer to structure containing filter parameters.
Description
-----------
@ -43,11 +43,9 @@ operation should be started immediately (without waiting for a
:ref:`DMX_START` ioctl call). If a filter was previously set-up, this
filter will be canceled, and the receive buffer will be flushed.
Return Value
------------
On success 0 is returned.
On error -1 is returned, and the ``errno`` variable is set

13
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _DMX_SET_PES_FILTER:
@ -11,25 +12,22 @@ Name
DMX_SET_PES_FILTER
Synopsis
--------
.. c:function:: int ioctl( int fd, DMX_SET_PES_FILTER, struct dmx_pes_filter_params *params)
:name: DMX_SET_PES_FILTER
.. c:macro:: DMX_SET_PES_FILTER
``int ioctl(int fd, DMX_SET_PES_FILTER, struct dmx_pes_filter_params *params)``
Arguments
---------
``fd``
File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
File descriptor returned by :c:func:`open()`.
``params``
Pointer to structure containing filter parameters.
Description
-----------
@ -38,7 +36,6 @@ provided. By a PES filter is meant a filter that is based just on the
packet identifier (PID), i.e. no PES header or payload filtering
capability is supported.
Return Value
------------
@ -54,7 +51,6 @@ appropriately.
:stub-columns: 0
:widths: 1 16
- .. row 1
- ``EBUSY``
@ -64,6 +60,5 @@ appropriately.
Make sure that these filters are stopped before starting this
filter.
The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _DMX_START:
@ -11,19 +12,18 @@ Name
DMX_START
Synopsis
--------
.. c:function:: int ioctl( int fd, DMX_START)
:name: DMX_START
.. c:macro:: DMX_START
``int ioctl(int fd, DMX_START)``
Arguments
---------
``fd``
File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
File descriptor returned by :c:func:`open()`.
Description
-----------
@ -31,7 +31,6 @@ Description
This ioctl call is used to start the actual filtering operation defined
via the ioctl calls :ref:`DMX_SET_FILTER` or :ref:`DMX_SET_PES_FILTER`.
Return Value
------------
@ -46,7 +45,6 @@ appropriately.
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EINVAL``
@ -63,6 +61,5 @@ appropriately.
Make sure that these filters are stopped before starting this
filter.
The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.dmx
.. _DMX_STOP:
@ -11,19 +12,18 @@ Name
DMX_STOP
Synopsis
--------
.. c:function:: int ioctl( int fd, DMX_STOP)
:name: DMX_STOP
.. c:macro:: DMX_STOP
``int ioctl(int fd, DMX_STOP)``
Arguments
---------
``fd``
File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
File descriptor returned by :c:func:`open()`.
Description
-----------
@ -32,7 +32,6 @@ This ioctl call is used to stop the actual filtering operation defined
via the ioctl calls :ref:`DMX_SET_FILTER` or :ref:`DMX_SET_PES_FILTER` and
started via the :ref:`DMX_START` command.
Return Value
------------

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_DISEQC_RECV_SLAVE_REPLY:
@ -11,24 +12,22 @@ Name
FE_DISEQC_RECV_SLAVE_REPLY - Receives reply from a DiSEqC 2.0 command
Synopsis
========
.. c:function:: int ioctl( int fd, FE_DISEQC_RECV_SLAVE_REPLY, struct dvb_diseqc_slave_reply *argp )
:name: FE_DISEQC_RECV_SLAVE_REPLY
.. c:macro:: FE_DISEQC_RECV_SLAVE_REPLY
``int ioctl(int fd, FE_DISEQC_RECV_SLAVE_REPLY, struct dvb_diseqc_slave_reply *argp)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
``argp``
pointer to struct :c:type:`dvb_diseqc_slave_reply`.
Description
===========

9
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_DISEQC_RESET_OVERLOAD:
@ -11,19 +12,18 @@ Name
FE_DISEQC_RESET_OVERLOAD - Restores the power to the antenna subsystem, if it was powered off due - to power overload.
Synopsis
========
.. c:function:: int ioctl( int fd, FE_DISEQC_RESET_OVERLOAD, NULL )
:name: FE_DISEQC_RESET_OVERLOAD
.. c:macro:: FE_DISEQC_RESET_OVERLOAD
``int ioctl(int fd, FE_DISEQC_RESET_OVERLOAD, NULL)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
Description
===========
@ -33,7 +33,6 @@ this ioctl call restores the power to the bus. The call requires
read/write access to the device. This call has no effect if the device
is manually powered off. Not all Digital TV adapters support this ioctl.
Return Value
============

10
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_DISEQC_SEND_BURST:
@ -11,24 +12,22 @@ Name
FE_DISEQC_SEND_BURST - Sends a 22KHz tone burst for 2x1 mini DiSEqC satellite selection.
Synopsis
========
.. c:function:: int ioctl( int fd, FE_DISEQC_SEND_BURST, enum fe_sec_mini_cmd tone )
:name: FE_DISEQC_SEND_BURST
.. c:macro:: FE_DISEQC_SEND_BURST
``int ioctl(int fd, FE_DISEQC_SEND_BURST, enum fe_sec_mini_cmd tone)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
``tone``
An integer enumered value described at :c:type:`fe_sec_mini_cmd`.
Description
===========
@ -39,7 +38,6 @@ read/write permissions.
It provides support for what's specified at
`Digital Satellite Equipment Control (DiSEqC) - Simple "ToneBurst" Detection Circuit specification. <http://www.eutelsat.com/files/contributed/satellites/pdf/Diseqc/associated%20docs/simple_tone_burst_detec.pdf>`__
Return Value
============

9
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_DISEQC_SEND_MASTER_CMD:
@ -11,25 +12,23 @@ Name
FE_DISEQC_SEND_MASTER_CMD - Sends a DiSEqC command
Synopsis
========
.. c:function:: int ioctl( int fd, FE_DISEQC_SEND_MASTER_CMD, struct dvb_diseqc_master_cmd *argp )
:name: FE_DISEQC_SEND_MASTER_CMD
.. c:macro:: FE_DISEQC_SEND_MASTER_CMD
``int ioctl(int fd, FE_DISEQC_SEND_MASTER_CMD, struct dvb_diseqc_master_cmd *argp)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
``argp``
pointer to struct
:c:type:`dvb_diseqc_master_cmd`
Description
===========

10
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_DISHNETWORK_SEND_LEGACY_CMD:
@ -11,24 +12,22 @@ Name
FE_DISHNETWORK_SEND_LEGACY_CMD
Synopsis
========
.. c:function:: int ioctl(int fd, FE_DISHNETWORK_SEND_LEGACY_CMD, unsigned long cmd)
:name: FE_DISHNETWORK_SEND_LEGACY_CMD
.. c:macro:: FE_DISHNETWORK_SEND_LEGACY_CMD
``int ioctl(int fd, FE_DISHNETWORK_SEND_LEGACY_CMD, unsigned long cmd)``
Arguments
=========
``fd``
File descriptor returned by :c:func:`open() <dvb-fe-open>`.
File descriptor returned by :c:func:`open()`.
``cmd``
Sends the specified raw cmd to the dish via DISEqC.
Description
===========
@ -42,7 +41,6 @@ frontend, for Dish Network legacy switches.
As support for this ioctl were added in 2004, this means that such
dishes were already legacy in 2004.
Return Value
============

10
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_ENABLE_HIGH_LNB_VOLTAGE:
@ -11,19 +12,18 @@ Name
FE_ENABLE_HIGH_LNB_VOLTAGE - Select output DC level between normal LNBf voltages or higher LNBf - voltages.
Synopsis
========
.. c:function:: int ioctl( int fd, FE_ENABLE_HIGH_LNB_VOLTAGE, unsigned int high )
:name: FE_ENABLE_HIGH_LNB_VOLTAGE
.. c:macro:: FE_ENABLE_HIGH_LNB_VOLTAGE
``int ioctl(int fd, FE_ENABLE_HIGH_LNB_VOLTAGE, unsigned int high)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
``high``
Valid flags:
@ -33,7 +33,6 @@ Arguments
- >0 - enables slightly higher voltages instead of 13/18V, in order
to compensate for long antenna cables.
Description
===========
@ -41,7 +40,6 @@ Select output DC level between normal LNBf voltages or higher LNBf
voltages between 0 (normal) or a value grater than 0 for higher
voltages.
Return Value
============

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_GET_EVENT:
@ -13,24 +14,22 @@ FE_GET_EVENT
.. attention:: This ioctl is deprecated.
Synopsis
========
.. c:function:: int ioctl(int fd, FE_GET_EVENT, struct dvb_frontend_event *ev)
:name: FE_GET_EVENT
.. c:macro:: FE_GET_EVENT
``int ioctl(int fd, FE_GET_EVENT, struct dvb_frontend_event *ev)``
Arguments
=========
``fd``
File descriptor returned by :c:func:`open() <dvb-fe-open>`.
File descriptor returned by :c:func:`open()`.
``ev``
Points to the location where the event, if any, is to be stored.
Description
===========
@ -40,7 +39,6 @@ or non-blocking mode. In the latter case, the call fails immediately
with errno set to ``EWOULDBLOCK``. In the former case, the call blocks until
an event becomes available.
Return Value
============
@ -49,12 +47,10 @@ On success 0 is returned.
On error -1 is returned, and the ``errno`` variable is set
appropriately.
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EWOULDBLOCK``

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_GET_FRONTEND:
@ -13,32 +14,28 @@ FE_GET_FRONTEND
.. attention:: This ioctl is deprecated.
Synopsis
========
.. c:function:: int ioctl(int fd, FE_GET_FRONTEND, struct dvb_frontend_parameters *p)
:name: FE_GET_FRONTEND
.. c:macro:: FE_GET_FRONTEND
``int ioctl(int fd, FE_GET_FRONTEND, struct dvb_frontend_parameters *p)``
Arguments
=========
``fd``
File descriptor returned by :c:func:`open() <dvb-fe-open>`.
File descriptor returned by :c:func:`open()`.
``p``
Points to parameters for tuning operation.
Description
===========
This ioctl call queries the currently effective frontend parameters. For
this command, read-only access to the device is sufficient.
Return Value
============
@ -51,7 +48,6 @@ appropriately.
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EINVAL``

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_GET_INFO:
@ -12,24 +13,22 @@ Name
FE_GET_INFO - Query Digital TV frontend capabilities and returns information
about the - front-end. This call only requires read-only access to the device.
Synopsis
========
.. c:function:: int ioctl( int fd, FE_GET_INFO, struct dvb_frontend_info *argp )
:name: FE_GET_INFO
.. c:macro:: FE_GET_INFO
``int ioctl(int fd, FE_GET_INFO, struct dvb_frontend_info *argp)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
``argp``
pointer to struct :c:type:`dvb_frontend_info`
Description
===========
@ -40,7 +39,6 @@ takes a pointer to dvb_frontend_info which is filled by the driver.
When the driver is not compatible with this specification the ioctl
returns an error.
frontend capabilities
=====================
@ -49,7 +47,6 @@ supported only on some specific frontend types.
The frontend capabilities are described at :c:type:`fe_caps`.
Return Value
============

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_GET_PROPERTY:
@ -11,27 +12,26 @@ Name
FE_SET_PROPERTY - FE_GET_PROPERTY - FE_SET_PROPERTY sets one or more frontend properties. - FE_GET_PROPERTY returns one or more frontend properties.
Synopsis
========
.. c:function:: int ioctl( int fd, FE_GET_PROPERTY, struct dtv_properties *argp )
:name: FE_GET_PROPERTY
.. c:macro:: FE_GET_PROPERTY
.. c:function:: int ioctl( int fd, FE_SET_PROPERTY, struct dtv_properties *argp )
:name: FE_SET_PROPERTY
``int ioctl(int fd, FE_GET_PROPERTY, struct dtv_properties *argp)``
.. c:macro:: FE_SET_PROPERTY
``int ioctl(int fd, FE_SET_PROPERTY, struct dtv_properties *argp)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
``argp``
Pointer to struct :c:type:`dtv_properties`.
Description
===========
@ -63,7 +63,6 @@ depends on the delivery system and on the device:
- This call only requires read-only access to the device.
Return Value
============

9
Documentation/userspace-api/media/dvb/fe-read-ber.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_READ_BER:
@ -16,20 +17,19 @@ FE_READ_BER
Synopsis
========
.. c:function:: int ioctl(int fd, FE_READ_BER, uint32_t *ber)
:name: FE_READ_BER
.. c:macro:: FE_READ_BER
``int ioctl(int fd, FE_READ_BER, uint32_t *ber)``
Arguments
=========
``fd``
File descriptor returned by :c:func:`open() <dvb-fe-open>`.
File descriptor returned by :c:func:`open()`.
``ber``
The bit error rate is stored into \*ber.
Description
===========
@ -37,7 +37,6 @@ This ioctl call returns the bit error rate for the signal currently
received/demodulated by the front-end. For this command, read-only
access to the device is sufficient.
Return Value
============

9
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_READ_SIGNAL_STRENGTH:
@ -16,20 +17,19 @@ FE_READ_SIGNAL_STRENGTH
Synopsis
========
.. c:function:: int ioctl( int fd, FE_READ_SIGNAL_STRENGTH, uint16_t *strength)
:name: FE_READ_SIGNAL_STRENGTH
.. c:macro:: FE_READ_SIGNAL_STRENGTH
``int ioctl(int fd, FE_READ_SIGNAL_STRENGTH, uint16_t *strength)``
Arguments
=========
``fd``
File descriptor returned by :c:func:`open() <dvb-fe-open>`.
File descriptor returned by :c:func:`open()`.
``strength``
The signal strength value is stored into \*strength.
Description
===========
@ -37,7 +37,6 @@ This ioctl call returns the signal strength value for the signal
currently received by the front-end. For this command, read-only access
to the device is sufficient.
Return Value
============

9
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_READ_SNR:
@ -16,20 +17,19 @@ FE_READ_SNR
Synopsis
========
.. c:function:: int ioctl(int fd, FE_READ_SNR, int16_t *snr)
:name: FE_READ_SNR
.. c:macro:: FE_READ_SNR
``int ioctl(int fd, FE_READ_SNR, int16_t *snr)``
Arguments
=========
``fd``
File descriptor returned by :c:func:`open() <dvb-fe-open>`.
File descriptor returned by :c:func:`open()`.
``snr``
The signal-to-noise ratio is stored into \*snr.
Description
===========
@ -37,7 +37,6 @@ This ioctl call returns the signal-to-noise ratio for the signal
currently received by the front-end. For this command, read-only access
to the device is sufficient.
Return Value
============

11
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_READ_STATUS:
@ -11,25 +12,23 @@ Name
FE_READ_STATUS - Returns status information about the front-end. This call only requires - read-only access to the device
Synopsis
========
.. c:function:: int ioctl( int fd, FE_READ_STATUS, unsigned int *status )
:name: FE_READ_STATUS
.. c:macro:: FE_READ_STATUS
``int ioctl(int fd, FE_READ_STATUS, unsigned int *status)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
``status``
pointer to a bitmask integer filled with the values defined by enum
:c:type:`fe_status`.
Description
===========
@ -44,7 +43,6 @@ written.
varies according with the architecture. This needs to be fixed in the
future.
int fe_status
=============
@ -52,7 +50,6 @@ The fe_status parameter is used to indicate the current state and/or
state changes of the frontend hardware. It is produced using the enum
:c:type:`fe_status` values on a bitmask
Return Value
============

9
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_READ_UNCORRECTED_BLOCKS:
@ -16,20 +17,19 @@ FE_READ_UNCORRECTED_BLOCKS
Synopsis
========
.. c:function:: int ioctl( int fd, FE_READ_UNCORRECTED_BLOCKS, uint32_t *ublocks)
:name: FE_READ_UNCORRECTED_BLOCKS
.. c:macro:: FE_READ_UNCORRECTED_BLOCKS
``int ioctl(int fd, FE_READ_UNCORRECTED_BLOCKS, uint32_t *ublocks)``
Arguments
=========
``fd``
File descriptor returned by :c:func:`open() <dvb-fe-open>`.
File descriptor returned by :c:func:`open()`.
``ublocks``
The total number of uncorrected blocks seen by the driver so far.
Description
===========
@ -39,7 +39,6 @@ increment in block count during a specific time interval should be
calculated. For this command, read-only access to the device is
sufficient.
Return Value
============

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_SET_FRONTEND_TUNE_MODE:
@ -11,19 +12,18 @@ Name
FE_SET_FRONTEND_TUNE_MODE - Allow setting tuner mode flags to the frontend.
Synopsis
========
.. c:function:: int ioctl( int fd, FE_SET_FRONTEND_TUNE_MODE, unsigned int flags )
:name: FE_SET_FRONTEND_TUNE_MODE
.. c:macro:: FE_SET_FRONTEND_TUNE_MODE
``int ioctl(int fd, FE_SET_FRONTEND_TUNE_MODE, unsigned int flags)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
``flags``
Valid flags:
@ -37,14 +37,12 @@ Arguments
is closed, this flag will be automatically turned off when the
device is reopened read-write.
Description
===========
Allow setting tuner mode flags to the frontend, between 0 (normal) or
``FE_TUNE_MODE_ONESHOT`` mode
Return Value
============

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_SET_FRONTEND:
@ -13,24 +14,22 @@ Name
FE_SET_FRONTEND
Synopsis
========
.. c:function:: int ioctl(int fd, FE_SET_FRONTEND, struct dvb_frontend_parameters *p)
:name: FE_SET_FRONTEND
.. c:macro:: FE_SET_FRONTEND
``int ioctl(int fd, FE_SET_FRONTEND, struct dvb_frontend_parameters *p)``
Arguments
=========
``fd``
File descriptor returned by :c:func:`open() <dvb-fe-open>`.
File descriptor returned by :c:func:`open()`.
``p``
Points to parameters for tuning operation.
Description
===========
@ -44,7 +43,6 @@ operation is initiated before the previous one was completed, the
previous operation will be aborted in favor of the new one. This command
requires read/write access to the device.
Return Value
============
@ -66,6 +64,5 @@ appropriately.
- Maximum supported symbol rate reached.
Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_SET_TONE:
@ -11,24 +12,22 @@ Name
FE_SET_TONE - Sets/resets the generation of the continuous 22kHz tone.
Synopsis
========
.. c:function:: int ioctl( int fd, FE_SET_TONE, enum fe_sec_tone_mode tone )
:name: FE_SET_TONE
.. c:macro:: FE_SET_TONE
``int ioctl(int fd, FE_SET_TONE, enum fe_sec_tone_mode tone)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
``tone``
an integer enumered value described at :c:type:`fe_sec_tone_mode`
Description
===========
@ -45,7 +44,6 @@ this is done using the DiSEqC ioctls.
capability of selecting the band. So, it is recommended that applications
would change to SEC_TONE_OFF when the device is not used.
Return Value
============

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _FE_SET_VOLTAGE:
@ -11,24 +12,22 @@ Name
FE_SET_VOLTAGE - Allow setting the DC level sent to the antenna subsystem.
Synopsis
========
.. c:function:: int ioctl( int fd, FE_SET_VOLTAGE, enum fe_sec_voltage voltage )
:name: FE_SET_VOLTAGE
.. c:macro:: FE_SET_VOLTAGE
``int ioctl(int fd, FE_SET_VOLTAGE, enum fe_sec_voltage voltage)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
``voltage``
an integer enumered value described at :c:type:`fe_sec_voltage`
Description
===========
@ -49,7 +48,6 @@ power up the LNBf.
the voltage to SEC_VOLTAGE_OFF while the device is not is used is
recommended.
Return Value
============

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _frontend_f_close:
@ -11,7 +12,6 @@ Name
fe-close - Close a frontend device
Synopsis
========
@ -19,16 +19,13 @@ Synopsis
#include <unistd.h>
.. c:function:: int close( int fd )
:name: dvb-fe-close
Arguments
=========
``fd``
File descriptor returned by :c:func:`open() <dvb-fe-open>`.
File descriptor returned by :c:func:`open()`.
Description
===========
@ -37,7 +34,6 @@ This system call closes a previously opened front-end device. After
closing a front-end device, its corresponding hardware might be powered
down automatically.
Return Value
============

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.fe
.. _frontend_f_open:
@ -11,7 +12,6 @@ Name
fe-open - Open a frontend device
Synopsis
========
@ -19,9 +19,7 @@ Synopsis
#include <fcntl.h>
.. c:function:: int open( const char *device_name, int flags )
:name: dvb-fe-open
Arguments
=========
@ -44,7 +42,6 @@ Arguments
Other flags have no effect.
Description
===========
@ -70,16 +67,14 @@ the specified mode. This implies that the corresponding hardware is
powered up, and that other front-ends may have been powered down to make
that possible.
Return Value
============
On success :ref:`open() <frontend_f_open>` returns the new file descriptor.
On success :c:func:`open()` returns the new file descriptor.
On error, -1 is returned, and the ``errno`` variable is set appropriately.
Possible error codes are:
On success 0 is returned, and :c:type:`ca_slot_info` is filled.
On error -1 is returned, and the ``errno`` variable is set
@ -105,6 +100,5 @@ appropriately.
- The limit on the total number of files open on the system has been
reached.
The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.net
.. _NET_ADD_IF:
@ -11,24 +12,22 @@ Name
NET_ADD_IF - Creates a new network interface for a given Packet ID.
Synopsis
========
.. c:function:: int ioctl( int fd, NET_ADD_IF, struct dvb_net_if *net_if )
:name: NET_ADD_IF
.. c:macro:: NET_ADD_IF
``int ioctl(int fd, NET_ADD_IF, struct dvb_net_if *net_if)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
``net_if``
pointer to struct :c:type:`dvb_net_if`
Description
===========

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.net
.. _NET_GET_IF:
@ -11,24 +12,22 @@ Name
NET_GET_IF - Read the configuration data of an interface created via - :ref:`NET_ADD_IF <net>`.
Synopsis
========
.. c:function:: int ioctl( int fd, NET_GET_IF, struct dvb_net_if *net_if )
:name: NET_GET_IF
.. c:macro:: NET_GET_IF
``int ioctl(int fd, NET_GET_IF, struct dvb_net_if *net_if)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
``net_if``
pointer to struct :c:type:`dvb_net_if`
Description
===========
@ -39,7 +38,6 @@ encapsulation type used on such interface. If the interface was not
created yet with :ref:`NET_ADD_IF <net>`, it will return -1 and fill
the ``errno`` with ``EINVAL`` error code.
Return Value
============

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.net
.. _NET_REMOVE_IF:
@ -11,31 +12,28 @@ Name
NET_REMOVE_IF - Removes a network interface.
Synopsis
========
.. c:function:: int ioctl( int fd, NET_REMOVE_IF, int ifnum )
:name: NET_REMOVE_IF
.. c:macro:: NET_REMOVE_IF
``int ioctl(int fd, NET_REMOVE_IF, int ifnum)``
Arguments
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
File descriptor returned by :c:func:`open()`.
``net_if``
number of the interface to be removed
Description
===========
The NET_REMOVE_IF ioctl deletes an interface previously created via
:ref:`NET_ADD_IF <net>`.
Return Value
============

8
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_CLEAR_BUFFER:
@ -16,9 +17,9 @@ VIDEO_CLEAR_BUFFER
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_CLEAR_BUFFER)
:name: VIDEO_CLEAR_BUFFER
.. c:macro:: VIDEO_CLEAR_BUFFER
``int ioctl(fd, VIDEO_CLEAR_BUFFER)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -40,14 +40,12 @@ Arguments
- Equals VIDEO_CLEAR_BUFFER for this command.
Description
-----------
This ioctl call clears all video buffers in the driver and in the
decoder hardware.
Return Value
------------

10
Documentation/userspace-api/media/dvb/video-command.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_COMMAND:
@ -16,9 +17,9 @@ VIDEO_COMMAND
Synopsis
--------
.. c:function:: int ioctl(int fd, VIDEO_COMMAND, struct video_command *cmd)
:name: VIDEO_COMMAND
.. c:macro:: VIDEO_COMMAND
``int ioctl(int fd, VIDEO_COMMAND, struct video_command *cmd)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,7 +46,6 @@ Arguments
- Commands the decoder.
Description
-----------
@ -59,7 +58,7 @@ subset of the ``v4l2_decoder_cmd`` struct, so refer to the
:ref:`VIDIOC_DECODER_CMD` documentation for
more information.
.. c:type:: struct video_command
.. c:type:: video_command
.. code-block:: c
@ -89,7 +88,6 @@ more information.
};
};
Return Value
------------

8
Documentation/userspace-api/media/dvb/video-continue.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_CONTINUE:
@ -16,9 +17,9 @@ VIDEO_CONTINUE
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_CONTINUE)
:name: VIDEO_CONTINUE
.. c:macro:: VIDEO_CONTINUE
``int ioctl(fd, VIDEO_CONTINUE)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -40,7 +40,6 @@ Arguments
- Equals VIDEO_CONTINUE for this command.
Description
-----------
@ -50,7 +49,6 @@ V4L2 :ref:`VIDIOC_DECODER_CMD` instead.
This ioctl call restarts decoding and playing processes of the video
stream which was played before a call to VIDEO_FREEZE was made.
Return Value
------------

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Documentation/userspace-api/media/dvb/video-fast-forward.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_FAST_FORWARD:
@ -16,9 +17,9 @@ VIDEO_FAST_FORWARD
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_FAST_FORWARD, int nFrames)
:name: VIDEO_FAST_FORWARD
.. c:macro:: VIDEO_FAST_FORWARD
``int ioctl(fd, VIDEO_FAST_FORWARD, int nFrames)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,7 +46,6 @@ Arguments
- The number of frames to skip.
Description
-----------
@ -54,7 +53,6 @@ This ioctl call asks the Video Device to skip decoding of N number of
I-frames. This call can only be used if VIDEO_SOURCE_MEMORY is
selected.
Return Value
------------
@ -63,12 +61,10 @@ appropriately. The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EPERM``

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _video_fclose:
@ -18,7 +19,6 @@ Synopsis
.. c:function:: int close(int fd)
Arguments
---------
@ -26,20 +26,17 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
- File descriptor returned by a previous call to open().
Description
-----------
This system call closes a previously opened video device.
Return Value
------------
@ -47,7 +44,6 @@ Return Value
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EBADF``

6
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _video_fopen:
@ -18,7 +19,6 @@ Synopsis
.. c:function:: int open(const char *deviceName, int flags)
Arguments
---------
@ -26,7 +26,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- const char \*deviceName
@ -59,7 +58,6 @@ Arguments
-
- (blocking mode is the default)
Description
-----------
@ -79,7 +77,6 @@ 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
------------
@ -89,7 +86,6 @@ Return Value
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``ENODEV``

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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_FREEZE:
@ -16,9 +17,9 @@ VIDEO_FREEZE
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_FREEZE)
:name: VIDEO_FREEZE
.. c:macro:: VIDEO_FREEZE
``int ioctl(fd, VIDEO_FREEZE)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -40,7 +40,6 @@ Arguments
- Equals VIDEO_FREEZE for this command.
Description
-----------
@ -54,7 +53,6 @@ If VIDEO_SOURCE_MEMORY is selected in the ioctl call
VIDEO_SELECT_SOURCE, the Digital TV subsystem will not decode any more data
until the ioctl call VIDEO_CONTINUE or VIDEO_PLAY is performed.
Return Value
------------

6
Documentation/userspace-api/media/dvb/video-fwrite.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _video_fwrite:
@ -18,7 +19,6 @@ Synopsis
.. c:function:: size_t write(int fd, const void *buf, size_t count)
Arguments
---------
@ -26,7 +26,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -45,7 +44,6 @@ Arguments
- Size of buf.
Description
-----------
@ -55,7 +53,6 @@ PES format, unless the capability allows other formats. If O_NONBLOCK
is not specified the function will block until buffer space is
available. The amount of data to be transferred is implied by count.
Return Value
------------
@ -63,7 +60,6 @@ Return Value
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EPERM``

8
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_GET_CAPABILITIES:
@ -16,9 +17,9 @@ VIDEO_GET_CAPABILITIES
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_GET_CAPABILITIES, unsigned int *cap)
:name: VIDEO_GET_CAPABILITIES
.. c:macro:: VIDEO_GET_CAPABILITIES
``int ioctl(fd, VIDEO_GET_CAPABILITIES, unsigned int *cap)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,7 +46,6 @@ Arguments
- Pointer to a location where to store the capability information.
Description
-----------
@ -54,7 +53,6 @@ This ioctl call asks the video device about its decoding capabilities.
On success it returns and integer which has bits set according to the
defines in section ??.
Return Value
------------

8
Documentation/userspace-api/media/dvb/video-get-event.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_GET_EVENT:
@ -16,9 +17,9 @@ VIDEO_GET_EVENT
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_GET_EVENT, struct video_event *ev)
:name: VIDEO_GET_EVENT
.. c:macro:: VIDEO_GET_EVENT
``int ioctl(fd, VIDEO_GET_EVENT, struct video_event *ev)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,7 +46,6 @@ Arguments
- Points to the location where the event, if any, is to be stored.
Description
-----------
@ -93,7 +92,6 @@ appropriately. The generic error codes are described at the
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EWOULDBLOCK``

8
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_GET_FRAME_COUNT:
@ -16,9 +17,9 @@ VIDEO_GET_FRAME_COUNT
Synopsis
--------
.. c:function:: int ioctl(int fd, VIDEO_GET_FRAME_COUNT, __u64 *pts)
:name: VIDEO_GET_FRAME_COUNT
.. c:macro:: VIDEO_GET_FRAME_COUNT
``int ioctl(int fd, VIDEO_GET_FRAME_COUNT, __u64 *pts)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -47,7 +47,6 @@ Arguments
- Returns the number of frames displayed since the decoder was
started.
Description
-----------
@ -58,7 +57,6 @@ control.
This ioctl call asks the Video Device to return the number of displayed
frames since the decoder was started.
Return Value
------------

8
Documentation/userspace-api/media/dvb/video-get-pts.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_GET_PTS:
@ -16,9 +17,9 @@ VIDEO_GET_PTS
Synopsis
--------
.. c:function:: int ioctl(int fd, VIDEO_GET_PTS, __u64 *pts)
:name: VIDEO_GET_PTS
.. c:macro:: VIDEO_GET_PTS
``int ioctl(int fd, VIDEO_GET_PTS, __u64 *pts)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -51,7 +51,6 @@ Arguments
but may also be a value close to it like the PTS of the last
decoded frame or the last PTS extracted by the PES parser.
Description
-----------
@ -62,7 +61,6 @@ control.
This ioctl call asks the Video Device to return the current PTS
timestamp.
Return Value
------------

8
Documentation/userspace-api/media/dvb/video-get-size.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_GET_SIZE:
@ -16,9 +17,9 @@ VIDEO_GET_SIZE
Synopsis
--------
.. c:function:: int ioctl(int fd, VIDEO_GET_SIZE, video_size_t *size)
:name: VIDEO_GET_SIZE
.. c:macro:: VIDEO_GET_SIZE
``int ioctl(int fd, VIDEO_GET_SIZE, video_size_t *size)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,7 +46,6 @@ Arguments
- Returns the size and aspect ratio.
Description
-----------
@ -62,7 +61,6 @@ This ioctl returns the size and aspect ratio.
video_format_t aspect_ratio;
} video_size_t;
Return Value
------------

7
Documentation/userspace-api/media/dvb/video-get-status.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_GET_STATUS:
@ -16,9 +17,9 @@ VIDEO_GET_STATUS
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_GET_STATUS, struct video_status *status)
:name: VIDEO_GET_STATUS
.. c:macro:: VIDEO_GET_STATUS
``int ioctl(fd, VIDEO_GET_STATUS, struct video_status *status)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,7 +46,6 @@ Arguments
- Returns the current status of the Video Device.
Description
-----------

8
Documentation/userspace-api/media/dvb/video-play.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_PLAY:
@ -16,9 +17,9 @@ VIDEO_PLAY
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_PLAY)
:name: VIDEO_PLAY
.. c:macro:: VIDEO_PLAY
``int ioctl(fd, VIDEO_PLAY)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -40,7 +40,6 @@ Arguments
- Equals VIDEO_PLAY for this command.
Description
-----------
@ -50,7 +49,6 @@ V4L2 :ref:`VIDIOC_DECODER_CMD` instead.
This ioctl call asks the Video Device to start playing a video stream
from the selected source.
Return Value
------------

7
Documentation/userspace-api/media/dvb/video-select-source.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_SELECT_SOURCE:
@ -16,9 +17,9 @@ VIDEO_SELECT_SOURCE
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_SELECT_SOURCE, video_stream_source_t source)
:name: VIDEO_SELECT_SOURCE
.. c:macro:: VIDEO_SELECT_SOURCE
``int ioctl(fd, VIDEO_SELECT_SOURCE, video_stream_source_t source)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,7 +46,6 @@ Arguments
- Indicates which source shall be used for the Video stream.
Description
-----------

8
Documentation/userspace-api/media/dvb/video-set-blank.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_SET_BLANK:
@ -16,9 +17,9 @@ VIDEO_SET_BLANK
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_SET_BLANK, boolean mode)
:name: VIDEO_SET_BLANK
.. c:macro:: VIDEO_SET_BLANK
``int ioctl(fd, VIDEO_SET_BLANK, boolean mode)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -51,13 +51,11 @@ Arguments
-
- FALSE: Show last decoded frame.
Description
-----------
This ioctl call asks the Video Device to blank out the picture.
Return Value
------------

8
Documentation/userspace-api/media/dvb/video-set-display-format.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_SET_DISPLAY_FORMAT:
@ -16,9 +17,9 @@ VIDEO_SET_DISPLAY_FORMAT
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_SET_DISPLAY_FORMAT)
:name: VIDEO_SET_DISPLAY_FORMAT
.. c:macro:: VIDEO_SET_DISPLAY_FORMAT
``int ioctl(fd, VIDEO_SET_DISPLAY_FORMAT)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,14 +46,12 @@ Arguments
- Selects the video format to be used.
Description
-----------
This ioctl call asks the Video Device to select the video format to be
applied by the MPEG chip on the video.
Return Value
------------

9
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_SET_FORMAT:
@ -16,9 +17,9 @@ VIDEO_SET_FORMAT
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_SET_FORMAT, video_format_t format)
:name: VIDEO_SET_FORMAT
.. c:macro:: VIDEO_SET_FORMAT
``int ioctl(fd, VIDEO_SET_FORMAT, video_format_t format)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,7 +46,6 @@ Arguments
- video format of TV as defined in section ??.
Description
-----------
@ -72,12 +71,10 @@ appropriately. The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EINVAL``

8
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_SET_STREAMTYPE:
@ -16,9 +17,9 @@ VIDEO_SET_STREAMTYPE
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_SET_STREAMTYPE, int type)
:name: VIDEO_SET_STREAMTYPE
.. c:macro:: VIDEO_SET_STREAMTYPE
``int ioctl(fd, VIDEO_SET_STREAMTYPE, int type)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,7 +46,6 @@ Arguments
- stream type
Description
-----------
@ -54,7 +53,6 @@ This ioctl tells the driver which kind of stream to expect being written
to it. If this call is not used the default of video PES is used. Some
drivers might not support this call and always expect PES.
Return Value
------------

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Documentation/userspace-api/media/dvb/video-slowmotion.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_SLOWMOTION:
@ -16,9 +17,9 @@ VIDEO_SLOWMOTION
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_SLOWMOTION, int nFrames)
:name: VIDEO_SLOWMOTION
.. c:macro:: VIDEO_SLOWMOTION
``int ioctl(fd, VIDEO_SLOWMOTION, int nFrames)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,7 +46,6 @@ Arguments
- The number of times to repeat each frame.
Description
-----------
@ -54,7 +53,6 @@ This ioctl call asks the video device to repeat decoding frames N number
of times. This call can only be used if VIDEO_SOURCE_MEMORY is
selected.
Return Value
------------
@ -63,12 +61,10 @@ appropriately. The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EPERM``

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Documentation/userspace-api/media/dvb/video-stillpicture.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_STILLPICTURE:
@ -16,9 +17,9 @@ VIDEO_STILLPICTURE
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_STILLPICTURE, struct video_still_picture *sp)
:name: VIDEO_STILLPICTURE
.. c:macro:: VIDEO_STILLPICTURE
``int ioctl(fd, VIDEO_STILLPICTURE, struct video_still_picture *sp)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,7 +46,6 @@ Arguments
- Pointer to a location where an I-frame and size is stored.
Description
-----------
@ -54,7 +53,6 @@ This ioctl call asks the Video Device to display a still picture
(I-frame). The input data shall contain an I-frame. If the pointer is
NULL, then the current displayed still picture is blanked.
Return Value
------------

8
Documentation/userspace-api/media/dvb/video-stop.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_STOP:
@ -16,9 +17,9 @@ VIDEO_STOP
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_STOP, boolean mode)
:name: VIDEO_STOP
.. c:macro:: VIDEO_STOP
``int ioctl(fd, VIDEO_STOP, boolean mode)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -56,7 +56,6 @@ Arguments
-
- FALSE: Show last decoded frame.
Description
-----------
@ -67,7 +66,6 @@ This ioctl call asks the Video Device to stop playing the current
stream. Depending on the input parameter, the screen can be blanked out
or displaying the last decoded frame.
Return Value
------------

8
Documentation/userspace-api/media/dvb/video-try-command.rst
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@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_TRY_COMMAND:
@ -16,9 +17,9 @@ VIDEO_TRY_COMMAND
Synopsis
--------
.. c:function:: int ioctl(int fd, VIDEO_TRY_COMMAND, struct video_command *cmd)
:name: VIDEO_TRY_COMMAND
.. c:macro:: VIDEO_TRY_COMMAND
``int ioctl(int fd, VIDEO_TRY_COMMAND, struct video_command *cmd)``
Arguments
---------
@ -27,7 +28,6 @@ Arguments
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
@ -46,7 +46,6 @@ Arguments
- Try a decoder command.
Description
-----------
@ -59,7 +58,6 @@ subset of the ``v4l2_decoder_cmd`` struct, so refer to the
:ref:`VIDIOC_TRY_DECODER_CMD <VIDIOC_DECODER_CMD>` documentation
for more information.
Return Value
------------