Commit eabe3bc2 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
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media: cec-ioc-receive.rst: document CEC_MSG_FL_RAW



Document this new cec_msg flag.

Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent aa50accf
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+14 −1
Original line number Diff line number Diff line
@@ -223,6 +223,18 @@ View On' messages from initiator 0xf ('Unregistered') to destination 0 ('TV').
	result of the :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>`, and once via
	:ref:`ioctl CEC_RECEIVE <CEC_RECEIVE>`.

    * .. _`CEC-MSG-FL-RAW`:

      - ``CEC_MSG_FL_RAW``
      - 2
      - Normally CEC messages are validated before transmitting them. If this
        flag is set when :ref:`ioctl CEC_TRANSMIT <CEC_TRANSMIT>` is called,
	then no validation takes place and the message is transmitted as-is.
	This is useful when debugging CEC issues.
	This flag is only allowed if the process has the ``CAP_SYS_RAWIO``
	capability. If that is not set, then the ``EPERM`` error code is
	returned.


.. tabularcolumns:: |p{5.6cm}|p{0.9cm}|p{11.0cm}|

@@ -358,7 +370,8 @@ ENOTTY

EPERM
    The CEC adapter is not configured, i.e. :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`
    has never been called.
    has never been called, or ``CEC_MSG_FL_RAW`` was used from a process that
    did not have the ``CAP_SYS_RAWIO`` capability.

ENONET
    The CEC adapter is not configured, i.e. :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`