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| author | Hans Verkuil <hans.verkuil@cisco.com> | 2016-11-01 10:59:34 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-11-16 18:32:07 +0100 |
| commit | f4062625ede8f0280d8246437f4070c8eb7fe9f3 (patch) | |
| tree | 38d7647eccf2816cd437dca90ad330e111989d2b /Documentation/media | |
| parent | [media] cec rst: convert tables and drop the 'row' comments (diff) | |
| download | linux-f4062625ede8f0280d8246437f4070c8eb7fe9f3.tar.xz linux-f4062625ede8f0280d8246437f4070c8eb7fe9f3.zip | |
[media] cec: add flag to cec_log_addrs to enable RC passthrough
By default the CEC_MSG_USER_CONTROL_PRESSED/RELEASED messages
are passed on to the follower(s) only. If the new
CEC_LOG_ADDRS_FL_ALLOW_RC_PASSTHRU flag is set in the
flags field of struct cec_log_addrs then these messages are also
passed on to the remote control input subsystem and they will appear
as keystrokes.
This used to be the default behavior, but now you have to explicitly
enable it. This is done to force the caller to think about possible
security issues (e.g. if these messages are used to enter passwords).
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'Documentation/media')
| -rw-r--r-- | Documentation/media/uapi/cec/cec-ioc-adap-g-log-addrs.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/media/uapi/cec/cec-ioc-adap-g-log-addrs.rst b/Documentation/media/uapi/cec/cec-ioc-adap-g-log-addrs.rst index af35f7185439..571ae57b75ae 100644 --- a/Documentation/media/uapi/cec/cec-ioc-adap-g-log-addrs.rst +++ b/Documentation/media/uapi/cec/cec-ioc-adap-g-log-addrs.rst @@ -166,6 +166,16 @@ logical address types are already defined will return with error ``EBUSY``. it will go back to the unconfigured state. If this flag is set, then it will fallback to the Unregistered logical address. Note that if the Unregistered logical address was explicitly requested, then this flag has no effect. + * .. _`CEC-LOG-ADDRS-FL-ALLOW-RC-PASSTHRU`: + + - ``CEC_LOG_ADDRS_FL_ALLOW_RC_PASSTHRU`` + - 2 + - By default the ``CEC_MSG_USER_CONTROL_PRESSED`` and ``CEC_MSG_USER_CONTROL_RELEASED`` + messages are only passed on to the follower(s), if any. If this flag is set, + then these messages are also passed on to the remote control input subsystem + and will appear as keystrokes. This features needs to be enabled explicitly. + If CEC is used to enter e.g. passwords, then you may not want to enable this + to avoid trivial snooping of the keystrokes. .. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}| |