diff options
Diffstat (limited to 'Documentation/media/uapi/cec/cec-ioc-g-mode.rst')
| -rw-r--r-- | Documentation/media/uapi/cec/cec-ioc-g-mode.rst | 317 |
1 files changed, 136 insertions, 181 deletions
diff --git a/Documentation/media/uapi/cec/cec-ioc-g-mode.rst b/Documentation/media/uapi/cec/cec-ioc-g-mode.rst index 70a41902ab58..4f5818b9d277 100644 --- a/Documentation/media/uapi/cec/cec-ioc-g-mode.rst +++ b/Documentation/media/uapi/cec/cec-ioc-g-mode.rst @@ -83,37 +83,28 @@ Available initiator modes are: :stub-columns: 0 :widths: 3 1 16 - - - .. _`CEC-MODE-NO-INITIATOR`: - - - ``CEC_MODE_NO_INITIATOR`` - - - 0x0 - - - This is not an initiator, i.e. it cannot transmit CEC messages or - make any other changes to the CEC adapter. - - - .. _`CEC-MODE-INITIATOR`: - - - ``CEC_MODE_INITIATOR`` - - - 0x1 - - - This is an initiator (the default when the device is opened) and - it can transmit CEC messages and make changes to the CEC adapter, - unless there is an exclusive initiator. - - - .. _`CEC-MODE-EXCL-INITIATOR`: - - - ``CEC_MODE_EXCL_INITIATOR`` - - - 0x2 - - - This is an exclusive initiator and this file descriptor is the - only one that can transmit CEC messages and make changes to the - CEC adapter. If someone else is already the exclusive initiator - then an attempt to become one will return the ``EBUSY`` error code - error. + * .. _`CEC-MODE-NO-INITIATOR`: + + - ``CEC_MODE_NO_INITIATOR`` + - 0x0 + - This is not an initiator, i.e. it cannot transmit CEC messages or + make any other changes to the CEC adapter. + * .. _`CEC-MODE-INITIATOR`: + + - ``CEC_MODE_INITIATOR`` + - 0x1 + - This is an initiator (the default when the device is opened) and + it can transmit CEC messages and make changes to the CEC adapter, + unless there is an exclusive initiator. + * .. _`CEC-MODE-EXCL-INITIATOR`: + + - ``CEC_MODE_EXCL_INITIATOR`` + - 0x2 + - This is an exclusive initiator and this file descriptor is the + only one that can transmit CEC messages and make changes to the + CEC adapter. If someone else is already the exclusive initiator + then an attempt to become one will return the ``EBUSY`` error code + error. Available follower modes are: @@ -127,86 +118,68 @@ Available follower modes are: :stub-columns: 0 :widths: 3 1 16 - - - .. _`CEC-MODE-NO-FOLLOWER`: - - - ``CEC_MODE_NO_FOLLOWER`` - - - 0x00 - - - This is not a follower (the default when the device is opened). - - - .. _`CEC-MODE-FOLLOWER`: - - - ``CEC_MODE_FOLLOWER`` - - - 0x10 - - - This is a follower and it will receive CEC messages unless there - is an exclusive follower. You cannot become a follower if - :ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>` - was specified, the ``EINVAL`` error code is returned in that case. - - - .. _`CEC-MODE-EXCL-FOLLOWER`: - - - ``CEC_MODE_EXCL_FOLLOWER`` - - - 0x20 - - - This is an exclusive follower and only this file descriptor will - receive CEC messages for processing. If someone else is already - the exclusive follower then an attempt to become one will return - the ``EBUSY`` error code. You cannot become a follower if - :ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>` - was specified, the ``EINVAL`` error code is returned in that case. - - - .. _`CEC-MODE-EXCL-FOLLOWER-PASSTHRU`: - - - ``CEC_MODE_EXCL_FOLLOWER_PASSTHRU`` - - - 0x30 - - - This is an exclusive follower and only this file descriptor will - receive CEC messages for processing. In addition it will put the - CEC device into passthrough mode, allowing the exclusive follower - to handle most core messages instead of relying on the CEC - framework for that. If someone else is already the exclusive - follower then an attempt to become one will return the ``EBUSY`` error - code. You cannot become a follower if :ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` - is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>` was specified, - the ``EINVAL`` error code is returned in that case. - - - .. _`CEC-MODE-MONITOR`: - - - ``CEC_MODE_MONITOR`` - - - 0xe0 - - - Put the file descriptor into monitor mode. Can only be used in - combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`, otherwise EINVAL error - code will be returned. In monitor mode all messages this CEC - device transmits and all messages it receives (both broadcast - messages and directed messages for one its logical addresses) will - be reported. This is very useful for debugging. This is only - allowed if the process has the ``CAP_NET_ADMIN`` capability. If - that is not set, then the ``EPERM`` error code is returned. - - - .. _`CEC-MODE-MONITOR-ALL`: - - - ``CEC_MODE_MONITOR_ALL`` - - - 0xf0 - - - Put the file descriptor into 'monitor all' mode. Can only be used - in combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`, otherwise - the ``EINVAL`` error code will be returned. In 'monitor all' mode all messages - this CEC device transmits and all messages it receives, including - directed messages for other CEC devices will be reported. This is - very useful for debugging, but not all devices support this. This - mode requires that the :ref:`CEC_CAP_MONITOR_ALL <CEC-CAP-MONITOR-ALL>` capability is set, - otherwise the ``EINVAL`` error code is returned. This is only allowed if - the process has the ``CAP_NET_ADMIN`` capability. If that is not - set, then the ``EPERM`` error code is returned. + * .. _`CEC-MODE-NO-FOLLOWER`: + + - ``CEC_MODE_NO_FOLLOWER`` + - 0x00 + - This is not a follower (the default when the device is opened). + * .. _`CEC-MODE-FOLLOWER`: + + - ``CEC_MODE_FOLLOWER`` + - 0x10 + - This is a follower and it will receive CEC messages unless there + is an exclusive follower. You cannot become a follower if + :ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>` + was specified, the ``EINVAL`` error code is returned in that case. + * .. _`CEC-MODE-EXCL-FOLLOWER`: + + - ``CEC_MODE_EXCL_FOLLOWER`` + - 0x20 + - This is an exclusive follower and only this file descriptor will + receive CEC messages for processing. If someone else is already + the exclusive follower then an attempt to become one will return + the ``EBUSY`` error code. You cannot become a follower if + :ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>` + was specified, the ``EINVAL`` error code is returned in that case. + * .. _`CEC-MODE-EXCL-FOLLOWER-PASSTHRU`: + + - ``CEC_MODE_EXCL_FOLLOWER_PASSTHRU`` + - 0x30 + - This is an exclusive follower and only this file descriptor will + receive CEC messages for processing. In addition it will put the + CEC device into passthrough mode, allowing the exclusive follower + to handle most core messages instead of relying on the CEC + framework for that. If someone else is already the exclusive + follower then an attempt to become one will return the ``EBUSY`` error + code. You cannot become a follower if :ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>` + is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>` was specified, + the ``EINVAL`` error code is returned in that case. + * .. _`CEC-MODE-MONITOR`: + + - ``CEC_MODE_MONITOR`` + - 0xe0 + - Put the file descriptor into monitor mode. Can only be used in + combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`, otherwise EINVAL error + code will be returned. In monitor mode all messages this CEC + device transmits and all messages it receives (both broadcast + messages and directed messages for one its logical addresses) will + be reported. This is very useful for debugging. This is only + allowed if the process has the ``CAP_NET_ADMIN`` capability. If + that is not set, then the ``EPERM`` error code is returned. + * .. _`CEC-MODE-MONITOR-ALL`: + + - ``CEC_MODE_MONITOR_ALL`` + - 0xf0 + - Put the file descriptor into 'monitor all' mode. Can only be used + in combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`, otherwise + the ``EINVAL`` error code will be returned. In 'monitor all' mode all messages + this CEC device transmits and all messages it receives, including + directed messages for other CEC devices will be reported. This is + very useful for debugging, but not all devices support this. This + mode requires that the :ref:`CEC_CAP_MONITOR_ALL <CEC-CAP-MONITOR-ALL>` capability is set, + otherwise the ``EINVAL`` error code is returned. This is only allowed if + the process has the ``CAP_NET_ADMIN`` capability. If that is not + set, then the ``EPERM`` error code is returned. Core message processing details: @@ -220,76 +193,58 @@ Core message processing details: :stub-columns: 0 :widths: 1 8 - - - .. _`CEC-MSG-GET-CEC-VERSION`: - - - ``CEC_MSG_GET_CEC_VERSION`` - - - When in passthrough mode this message has to be handled by - userspace, otherwise the core will return the CEC version that was - set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`. - - - .. _`CEC-MSG-GIVE-DEVICE-VENDOR-ID`: - - - ``CEC_MSG_GIVE_DEVICE_VENDOR_ID`` - - - When in passthrough mode this message has to be handled by - userspace, otherwise the core will return the vendor ID that was - set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`. - - - .. _`CEC-MSG-ABORT`: - - - ``CEC_MSG_ABORT`` - - - When in passthrough mode this message has to be handled by - userspace, otherwise the core will return a feature refused - message as per the specification. - - - .. _`CEC-MSG-GIVE-PHYSICAL-ADDR`: - - - ``CEC_MSG_GIVE_PHYSICAL_ADDR`` - - - When in passthrough mode this message has to be handled by - userspace, otherwise the core will report the current physical - address. - - - .. _`CEC-MSG-GIVE-OSD-NAME`: - - - ``CEC_MSG_GIVE_OSD_NAME`` - - - When in passthrough mode this message has to be handled by - userspace, otherwise the core will report the current OSD name as - was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`. - - - .. _`CEC-MSG-GIVE-FEATURES`: - - - ``CEC_MSG_GIVE_FEATURES`` - - - When in passthrough mode this message has to be handled by - userspace, otherwise the core will report the current features as - was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>` - or the message is ignored if the CEC version was older than 2.0. - - - .. _`CEC-MSG-USER-CONTROL-PRESSED`: - - - ``CEC_MSG_USER_CONTROL_PRESSED`` - - - If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key - press. This message is always passed on to userspace. - - - .. _`CEC-MSG-USER-CONTROL-RELEASED`: - - - ``CEC_MSG_USER_CONTROL_RELEASED`` - - - If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key - release. This message is always passed on to userspace. - - - .. _`CEC-MSG-REPORT-PHYSICAL-ADDR`: - - - ``CEC_MSG_REPORT_PHYSICAL_ADDR`` - - - The CEC framework will make note of the reported physical address - and then just pass the message on to userspace. + * .. _`CEC-MSG-GET-CEC-VERSION`: + + - ``CEC_MSG_GET_CEC_VERSION`` + - When in passthrough mode this message has to be handled by + userspace, otherwise the core will return the CEC version that was + set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`. + * .. _`CEC-MSG-GIVE-DEVICE-VENDOR-ID`: + + - ``CEC_MSG_GIVE_DEVICE_VENDOR_ID`` + - When in passthrough mode this message has to be handled by + userspace, otherwise the core will return the vendor ID that was + set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`. + * .. _`CEC-MSG-ABORT`: + + - ``CEC_MSG_ABORT`` + - When in passthrough mode this message has to be handled by + userspace, otherwise the core will return a feature refused + message as per the specification. + * .. _`CEC-MSG-GIVE-PHYSICAL-ADDR`: + + - ``CEC_MSG_GIVE_PHYSICAL_ADDR`` + - When in passthrough mode this message has to be handled by + userspace, otherwise the core will report the current physical + address. + * .. _`CEC-MSG-GIVE-OSD-NAME`: + + - ``CEC_MSG_GIVE_OSD_NAME`` + - When in passthrough mode this message has to be handled by + userspace, otherwise the core will report the current OSD name as + was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`. + * .. _`CEC-MSG-GIVE-FEATURES`: + + - ``CEC_MSG_GIVE_FEATURES`` + - When in passthrough mode this message has to be handled by + userspace, otherwise the core will report the current features as + was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>` + or the message is ignored if the CEC version was older than 2.0. + * .. _`CEC-MSG-USER-CONTROL-PRESSED`: + + - ``CEC_MSG_USER_CONTROL_PRESSED`` + - If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key + press. This message is always passed on to userspace. + * .. _`CEC-MSG-USER-CONTROL-RELEASED`: + + - ``CEC_MSG_USER_CONTROL_RELEASED`` + - If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key + release. This message is always passed on to userspace. + * .. _`CEC-MSG-REPORT-PHYSICAL-ADDR`: + + - ``CEC_MSG_REPORT_PHYSICAL_ADDR`` + - The CEC framework will make note of the reported physical address + and then just pass the message on to userspace. |