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+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: DTV.video
+
+.. _video_fwrite:
+
+=================
+dvb video write()
+=================
+
+Name
+----
+
+dvb video write()
+
+.. attention:: This ioctl is deprecated.
+
+Synopsis
+--------
+
+.. c:function:: size_t write(int fd, const void *buf, size_t count)
+
+Arguments
+---------
+
+.. 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.
+
+Description
+-----------
+
+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.
+
+Return Value
+------------
+
+.. 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.