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- .. -*- coding: utf-8; mode: rst -*-
- .. _CA_SEND_MSG:
- ===========
- CA_SEND_MSG
- ===========
- Name
- ----
- CA_SEND_MSG
- Synopsis
- --------
- .. c:function:: int ioctl(fd, CA_SEND_MSG, struct ca_msg *msg)
- :name: CA_SEND_MSG
- Arguments
- ---------
- ``fd``
- File descriptor returned by a previous call to :c:func:`open() <cec-open>`.
- ``msg``
- Pointer to struct :c:type:`ca_msg`.
- Description
- -----------
- Sends a message via a CI CA module.
- .. note::
- Please notice that, on most drivers, this is done by writing
- to the /dev/adapter?/ca? device node.
- Return Value
- ------------
- On success 0 is returned.
- On error -1 is returned, and the ``errno`` variable is set
- appropriately.
- Generic error codes are described at the
- :ref:`Generic Error Codes <gen-errors>` chapter.
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