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- .. -*- coding: utf-8; mode: rst -*-
- .. _audio_fwrite:
- =========================
- Digital TV audio write()
- =========================
- Name
- ----
- Digital TV audio write()
- .. attention:: This ioctl is deprecated
- Synopsis
- --------
- .. c:function:: size_t write(int fd, const void *buf, size_t count)
- :name: dvb-audio-write
- 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 AUDIO_SOURCE_MEMORY is selected
- in the ioctl call AUDIO_SELECT_SOURCE. The data provided shall be in
- PES format. 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 AUDIO_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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