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linux/Documentation/media/uapi/dvb/dmx-fread.rst

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doc-rst: linux_tv: split DVB function call documentation Just like V4L, split the DVB function calls into one file per system call. This is a requirement for the man pages creator on Sphinx to work, and makes the document easier to maintain. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 21:37:31 +08:00
.. -*- coding: utf-8; mode: rst -*-
.. _dmx_fread:
doc-rst: linux_tv: reformat all syscall pages The syscall pages are written to be used also as man-pages. However, they don't match the format used by kernel-doc generated pages from DocBook. Rewrite them to match it. One side effect is that now all such pages at the book will have the same format, reducing the format differences between DVB and the other parts of the book. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 18:58:48 +08:00
================
doc-rst: linux_tv: split DVB function call documentation Just like V4L, split the DVB function calls into one file per system call. This is a requirement for the man pages creator on Sphinx to work, and makes the document easier to maintain. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 21:37:31 +08:00
DVB demux read()
================
doc-rst: linux_tv: don't use uppercases for syscall sections On the syscall conversions, we used uppercase for the sections, but this is too bold. So, convert them to Camel Case, as it looks visually better. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-06 02:14:35 +08:00
Name
doc-rst: linux_tv: reformat all syscall pages The syscall pages are written to be used also as man-pages. However, they don't match the format used by kernel-doc generated pages from DocBook. Rewrite them to match it. One side effect is that now all such pages at the book will have the same format, reducing the format differences between DVB and the other parts of the book. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 18:58:48 +08:00
----
doc-rst: linux_tv: split DVB function call documentation Just like V4L, split the DVB function calls into one file per system call. This is a requirement for the man pages creator on Sphinx to work, and makes the document easier to maintain. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 21:37:31 +08:00
doc-rst: linux_tv: reformat all syscall pages The syscall pages are written to be used also as man-pages. However, they don't match the format used by kernel-doc generated pages from DocBook. Rewrite them to match it. One side effect is that now all such pages at the book will have the same format, reducing the format differences between DVB and the other parts of the book. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 18:58:48 +08:00
DVB demux read()
doc-rst: linux_tv: split DVB function call documentation Just like V4L, split the DVB function calls into one file per system call. This is a requirement for the man pages creator on Sphinx to work, and makes the document easier to maintain. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 21:37:31 +08:00
doc-rst: linux_tv: don't use uppercases for syscall sections On the syscall conversions, we used uppercase for the sections, but this is too bold. So, convert them to Camel Case, as it looks visually better. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-06 02:14:35 +08:00
Synopsis
doc-rst: linux_tv: split DVB function call documentation Just like V4L, split the DVB function calls into one file per system call. This is a requirement for the man pages creator on Sphinx to work, and makes the document easier to maintain. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 21:37:31 +08:00
--------
doc-rst: linux_tv: use :cpp:function:: on all syscalls Now that we have one syscall per page, using :cpp:function:: cleans up almost all warnings, with is a great thing. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-06 02:22:59 +08:00
.. cpp:function:: size_t read(int fd, void *buf, size_t count)
doc-rst: linux_tv: split DVB function call documentation Just like V4L, split the DVB function calls into one file per system call. This is a requirement for the man pages creator on Sphinx to work, and makes the document easier to maintain. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 21:37:31 +08:00
doc-rst: linux_tv: don't use uppercases for syscall sections On the syscall conversions, we used uppercase for the sections, but this is too bold. So, convert them to Camel Case, as it looks visually better. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-06 02:14:35 +08:00
Arguments
doc-rst: linux_tv: reformat all syscall pages The syscall pages are written to be used also as man-pages. However, they don't match the format used by kernel-doc generated pages from DocBook. Rewrite them to match it. One side effect is that now all such pages at the book will have the same format, reducing the format differences between DVB and the other parts of the book. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 18:58:48 +08:00
---------
doc-rst: linux_tv: split DVB function call documentation Just like V4L, split the DVB function calls into one file per system call. This is a requirement for the man pages creator on Sphinx to work, and makes the document easier to maintain. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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 to be used for returned filtered data.
- .. row 3
- size_t count
- Size of buf.
doc-rst: linux_tv: don't use uppercases for syscall sections On the syscall conversions, we used uppercase for the sections, but this is too bold. So, convert them to Camel Case, as it looks visually better. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-06 02:14:35 +08:00
Description
doc-rst: linux_tv: reformat all syscall pages The syscall pages are written to be used also as man-pages. However, they don't match the format used by kernel-doc generated pages from DocBook. Rewrite them to match it. One side effect is that now all such pages at the book will have the same format, reducing the format differences between DVB and the other parts of the book. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 18:58:48 +08:00
-----------
doc-rst: linux_tv: split DVB function call documentation Just like V4L, split the DVB function calls into one file per system call. This is a requirement for the man pages creator on Sphinx to work, and makes the document easier to maintain. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 21:37:31 +08:00
doc-rst: linux_tv: reformat all syscall pages The syscall pages are written to be used also as man-pages. However, they don't match the format used by kernel-doc generated pages from DocBook. Rewrite them to match it. One side effect is that now all such pages at the book will have the same format, reducing the format differences between DVB and the other parts of the book. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 18:58:48 +08:00
This system call returns filtered data, which might be section or PES
data. The filtered data is transferred from the driver’s internal
circular buffer to buf. The maximum amount of data to be transferred is
implied by count.
doc-rst: linux_tv: split DVB function call documentation Just like V4L, split the DVB function calls into one file per system call. This is a requirement for the man pages creator on Sphinx to work, and makes the document easier to maintain. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 21:37:31 +08:00
doc-rst: linux_tv: don't use uppercases for syscall sections On the syscall conversions, we used uppercase for the sections, but this is too bold. So, convert them to Camel Case, as it looks visually better. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-06 02:14:35 +08:00
Return Value
doc-rst: linux_tv: reformat all syscall pages The syscall pages are written to be used also as man-pages. However, they don't match the format used by kernel-doc generated pages from DocBook. Rewrite them to match it. One side effect is that now all such pages at the book will have the same format, reducing the format differences between DVB and the other parts of the book. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 18:58:48 +08:00
------------
[media] adjust remaining tables at DVB uAPI documentation There are a few broken tables on LaTeX output at the DVB uAPI documentation. Fix them. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-19 19:00:44 +08:00
.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
doc-rst: linux_tv: split DVB function call documentation Just like V4L, split the DVB function calls into one file per system call. This is a requirement for the man pages creator on Sphinx to work, and makes the document easier to maintain. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-05 21:37:31 +08:00
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EWOULDBLOCK``
- No data to return and O_NONBLOCK was specified.
- .. row 2
- ``EBADF``
- fd is not a valid open file descriptor.
- .. row 3
- ``ECRC``
- Last section had a CRC error - no data returned. The buffer is
flushed.
- .. row 4
- ``EOVERFLOW``
-
- .. row 5
-
- The filtered data was not read from the buffer in due time,
resulting in non-read data being lost. The buffer is flushed.
- .. row 6
- ``ETIMEDOUT``
- The section was not loaded within the stated timeout period. See
ioctl DMX_SET_FILTER for how to set a timeout.
- .. row 7
- ``EFAULT``
- The driver failed to write to the callers buffer due to an invalid
\*buf pointer.