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- .. -*- coding: utf-8; mode: rst -*-
- .. _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.
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