2018-08-30 22:15:26 +08:00
|
|
|
.. 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/media/uapi/fdl-appendix.rst.
|
|
|
|
..
|
|
|
|
.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
|
|
|
|
|
2016-07-05 21:37:31 +08:00
|
|
|
.. _video_fwrite:
|
|
|
|
|
2016-07-05 18:58:48 +08:00
|
|
|
=================
|
2016-07-05 21:37:31 +08:00
|
|
|
dvb video write()
|
|
|
|
=================
|
|
|
|
|
2016-07-06 02:14:35 +08:00
|
|
|
Name
|
2016-07-05 18:58:48 +08:00
|
|
|
----
|
2016-07-05 21:37:31 +08:00
|
|
|
|
2016-07-05 18:58:48 +08:00
|
|
|
dvb video write()
|
2016-07-05 21:37:31 +08:00
|
|
|
|
2016-08-20 03:56:15 +08:00
|
|
|
.. attention:: This ioctl is deprecated.
|
2016-07-06 02:14:35 +08:00
|
|
|
|
|
|
|
Synopsis
|
2016-07-05 21:37:31 +08:00
|
|
|
--------
|
|
|
|
|
2016-08-19 23:00:43 +08:00
|
|
|
.. c:function:: size_t write(int fd, const void *buf, size_t count)
|
2016-07-05 21:37:31 +08:00
|
|
|
|
|
|
|
|
2016-07-06 02:14:35 +08:00
|
|
|
Arguments
|
2016-07-05 18:58:48 +08:00
|
|
|
---------
|
2016-07-05 21:37:31 +08:00
|
|
|
|
|
|
|
.. flat-table::
|
|
|
|
:header-rows: 0
|
|
|
|
:stub-columns: 0
|
|
|
|
|
|
|
|
|
|
|
|
- .. row 1
|
|
|
|
|
|
|
|
- int fd
|
|
|
|
|
|
|
|
- File descriptor returned by a previous call to open().
|
|
|
|
|
|
|
|
- .. row 2
|
|
|
|
|
|
|
|
- void \*buf
|
|
|
|
|
|
|
|
- Pointer to the buffer containing the PES data.
|
|
|
|
|
|
|
|
- .. row 3
|
|
|
|
|
|
|
|
- size_t count
|
|
|
|
|
|
|
|
- Size of buf.
|
|
|
|
|
|
|
|
|
2016-07-06 02:14:35 +08:00
|
|
|
Description
|
2016-07-05 18:58:48 +08:00
|
|
|
-----------
|
2016-07-05 21:37:31 +08:00
|
|
|
|
2016-07-05 18:58:48 +08:00
|
|
|
This system call can only be used if VIDEO_SOURCE_MEMORY is selected
|
|
|
|
in the ioctl call VIDEO_SELECT_SOURCE. The data provided shall be in
|
|
|
|
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.
|
2016-07-05 21:37:31 +08:00
|
|
|
|
|
|
|
|
2016-07-06 02:14:35 +08:00
|
|
|
Return Value
|
2016-07-05 18:58:48 +08:00
|
|
|
------------
|
|
|
|
|
2016-07-05 21:37:31 +08:00
|
|
|
.. flat-table::
|
|
|
|
:header-rows: 0
|
|
|
|
:stub-columns: 0
|
|
|
|
|
|
|
|
|
|
|
|
- .. row 1
|
|
|
|
|
|
|
|
- ``EPERM``
|
|
|
|
|
|
|
|
- Mode VIDEO_SOURCE_MEMORY not selected.
|
|
|
|
|
|
|
|
- .. row 2
|
|
|
|
|
|
|
|
- ``ENOMEM``
|
|
|
|
|
|
|
|
- Attempted to write more data than the internal buffer can hold.
|
|
|
|
|
|
|
|
- .. row 3
|
|
|
|
|
|
|
|
- ``EBADF``
|
|
|
|
|
|
|
|
- fd is not a valid open file descriptor.
|