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-.. -*- coding: utf-8; mode: rst -*-
-
-.. _dmx_fwrite:
-
-=================
-DVB demux write()
-=================
-
-Name
-----
-
-DVB 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>`.
-
-``buf``
- Buffer with data to be written
-
-``count``
- Number of bytes at the buffer
-
-Description
------------
-
-This system call is only provided by the logical device
-/dev/dvb/adapter0/dvr0, associated with the physical demux device that
-provides the actual DVR functionality. It is used for replay of a
-digitally recorded Transport Stream. Matching filters have to be defined
-in the corresponding physical demux device, /dev/dvb/adapter0/demux0.
-The amount of data to be transferred is implied by count.
-
-
-Return Value
-------------
-
-.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
-
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
-
- - .. row 1
-
- - ``EWOULDBLOCK``
-
- - No data was written. This might happen if O_NONBLOCK was
- specified and there is no more buffer space available (if
- O_NONBLOCK is not specified the function will block until buffer
- space is available).
-
- - .. row 2
-
- - ``EBUSY``
-
- - This error code indicates that there are conflicting requests. The
- corresponding demux device is setup to receive data from the
- front- end. Make sure that these filters are stopped and that the
- filters with input set to DMX_IN_DVR are started.
-
- - .. row 3
-
- - ``EBADF``
-
- - fd is not a valid open file descriptor.