From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
To: linux-media@vger.kernel.org
Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Subject: [PATCH 3/6] cec-ioc-receive.rst: document CEC_MSG_FL_RAW
Date: Wed, 15 May 2019 09:58:23 +0200 [thread overview]
Message-ID: <20190515075826.18073-4-hverkuil-cisco@xs4all.nl> (raw)
In-Reply-To: <20190515075826.18073-1-hverkuil-cisco@xs4all.nl>
Document this new cec_msg flag.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---
Documentation/media/uapi/cec/cec-ioc-receive.rst | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/Documentation/media/uapi/cec/cec-ioc-receive.rst b/Documentation/media/uapi/cec/cec-ioc-receive.rst
index c3a685ff05cb..22187a659525 100644
--- a/Documentation/media/uapi/cec/cec-ioc-receive.rst
+++ b/Documentation/media/uapi/cec/cec-ioc-receive.rst
@@ -223,6 +223,16 @@ 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 *and*
+ the ioctl was called with superuser privileges, then no validation takes
+ place and the message is transmitted as-is. This is useful when
+ debugging CEC issues.
+
.. tabularcolumns:: |p{5.6cm}|p{0.9cm}|p{11.0cm}|
@@ -358,7 +368,8 @@ 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 without superuser
+ privileges.
ENONET
The CEC adapter is not configured, i.e. :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`
--
2.20.1
next prev parent reply other threads:[~2019-05-15 7:58 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-15 7:58 [PATCH 0/6] cec: various improvements Hans Verkuil
2019-05-15 7:58 ` [PATCH 1/6] cec: cec_transmit_msg_fh: do sanity checks first Hans Verkuil
2019-05-15 7:58 ` [PATCH 2/6] cec: move check from cec_transmit to cec_transmit_msg_fh Hans Verkuil
2019-05-15 7:58 ` Hans Verkuil [this message]
2019-05-15 7:58 ` [PATCH 4/6] cec: add CEC_MSG_FL_RAW flag and msg_is_raw helper function Hans Verkuil
2019-05-15 7:58 ` [PATCH 5/6] cec: support CEC_MSG_FL_RAW Hans Verkuil
2019-05-15 7:58 ` [PATCH 6/6] cec: allow any initiator for Ping and Image/Text View On Hans Verkuil
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