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+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: CEC
+
+.. _CEC_ADAP_LOG_ADDRS:
+.. _CEC_ADAP_G_LOG_ADDRS:
+.. _CEC_ADAP_S_LOG_ADDRS:
+
+****************************************************
+ioctls CEC_ADAP_G_LOG_ADDRS and CEC_ADAP_S_LOG_ADDRS
+****************************************************
+
+Name
+====
+
+CEC_ADAP_G_LOG_ADDRS, CEC_ADAP_S_LOG_ADDRS - Get or set the logical addresses
+
+Synopsis
+========
+
+.. c:macro:: CEC_ADAP_G_LOG_ADDRS
+
+``int ioctl(int fd, CEC_ADAP_G_LOG_ADDRS, struct cec_log_addrs *argp)``
+
+.. c:macro:: CEC_ADAP_S_LOG_ADDRS
+
+``int ioctl(int fd, CEC_ADAP_S_LOG_ADDRS, struct cec_log_addrs *argp)``
+
+Arguments
+=========
+
+``fd``
+ File descriptor returned by :c:func:`open()`.
+
+``argp``
+ Pointer to struct :c:type:`cec_log_addrs`.
+
+Description
+===========
+
+To query the current CEC logical addresses, applications call
+:ref:`ioctl CEC_ADAP_G_LOG_ADDRS <CEC_ADAP_G_LOG_ADDRS>` with a pointer to a
+struct :c:type:`cec_log_addrs` where the driver stores the logical addresses.
+
+To set new logical addresses, applications fill in
+struct :c:type:`cec_log_addrs` and call :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`
+with a pointer to this struct. The :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`
+is only available if ``CEC_CAP_LOG_ADDRS`` is set (the ``ENOTTY`` error code is
+returned otherwise). The :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`
+can only be called by a file descriptor in initiator mode (see :ref:`CEC_S_MODE`), if not
+the ``EBUSY`` error code will be returned.
+
+To clear existing logical addresses set ``num_log_addrs`` to 0. All other fields
+will be ignored in that case. The adapter will go to the unconfigured state and the
+``cec_version``, ``vendor_id`` and ``osd_name`` fields are all reset to their default
+values (CEC version 2.0, no vendor ID and an empty OSD name).
+
+If the physical address is valid (see :ref:`ioctl CEC_ADAP_S_PHYS_ADDR <CEC_ADAP_S_PHYS_ADDR>`),
+then this ioctl will block until all requested logical
+addresses have been claimed. If the file descriptor is in non-blocking mode then it will
+not wait for the logical addresses to be claimed, instead it just returns 0.
+
+A :ref:`CEC_EVENT_STATE_CHANGE <CEC-EVENT-STATE-CHANGE>` event is sent when the
+logical addresses are claimed or cleared.
+
+Attempting to call :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>` when
+logical address types are already defined will return with error ``EBUSY``.
+
+.. c:type:: cec_log_addrs
+
+.. tabularcolumns:: |p{1.0cm}|p{8.0cm}|p{7.5cm}|
+
+.. cssclass:: longtable
+
+.. flat-table:: struct cec_log_addrs
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 16
+
+ * - __u8
+ - ``log_addr[CEC_MAX_LOG_ADDRS]``
+ - The actual logical addresses that were claimed. This is set by the
+ driver. If no logical address could be claimed, then it is set to
+ ``CEC_LOG_ADDR_INVALID``. If this adapter is Unregistered, then
+ ``log_addr[0]`` is set to 0xf and all others to
+ ``CEC_LOG_ADDR_INVALID``.
+ * - __u16
+ - ``log_addr_mask``
+ - The bitmask of all logical addresses this adapter has claimed. If
+ this adapter is Unregistered then ``log_addr_mask`` sets bit 15
+ and clears all other bits. If this adapter is not configured at
+ all, then ``log_addr_mask`` is set to 0. Set by the driver.
+ * - __u8
+ - ``cec_version``
+ - The CEC version that this adapter shall use. See
+ :ref:`cec-versions`. Used to implement the
+ ``CEC_MSG_CEC_VERSION`` and ``CEC_MSG_REPORT_FEATURES`` messages.
+ Note that :ref:`CEC_OP_CEC_VERSION_1_3A <CEC-OP-CEC-VERSION-1-3A>` is not allowed by the CEC
+ framework.
+ * - __u8
+ - ``num_log_addrs``
+ - Number of logical addresses to set up. Must be ≤
+ ``available_log_addrs`` as returned by
+ :ref:`CEC_ADAP_G_CAPS`. All arrays in
+ this structure are only filled up to index
+ ``available_log_addrs``-1. The remaining array elements will be
+ ignored. Note that the CEC 2.0 standard allows for a maximum of 2
+ logical addresses, although some hardware has support for more.
+ ``CEC_MAX_LOG_ADDRS`` is 4. The driver will return the actual
+ number of logical addresses it could claim, which may be less than
+ what was requested. If this field is set to 0, then the CEC
+ adapter shall clear all claimed logical addresses and all other
+ fields will be ignored.
+ * - __u32
+ - ``vendor_id``
+ - The vendor ID is a 24-bit number that identifies the specific
+ vendor or entity. Based on this ID vendor specific commands may be
+ defined. If you do not want a vendor ID then set it to
+ ``CEC_VENDOR_ID_NONE``.
+ * - __u32
+ - ``flags``
+ - Flags. See :ref:`cec-log-addrs-flags` for a list of available flags.
+ * - char
+ - ``osd_name[15]``
+ - The On-Screen Display name as is returned by the
+ ``CEC_MSG_SET_OSD_NAME`` message.
+ * - __u8
+ - ``primary_device_type[CEC_MAX_LOG_ADDRS]``
+ - Primary device type for each logical address. See
+ :ref:`cec-prim-dev-types` for possible types.
+ * - __u8
+ - ``log_addr_type[CEC_MAX_LOG_ADDRS]``
+ - Logical address types. See :ref:`cec-log-addr-types` for
+ possible types. The driver will update this with the actual
+ logical address type that it claimed (e.g. it may have to fallback
+ to :ref:`CEC_LOG_ADDR_TYPE_UNREGISTERED <CEC-LOG-ADDR-TYPE-UNREGISTERED>`).
+ * - __u8
+ - ``all_device_types[CEC_MAX_LOG_ADDRS]``
+ - CEC 2.0 specific: the bit mask of all device types. See
+ :ref:`cec-all-dev-types-flags`. It is used in the CEC 2.0
+ ``CEC_MSG_REPORT_FEATURES`` message. For CEC 1.4 you can either leave
+ this field to 0, or fill it in according to the CEC 2.0 guidelines to
+ give the CEC framework more information about the device type, even
+ though the framework won't use it directly in the CEC message.
+ * - __u8
+ - ``features[CEC_MAX_LOG_ADDRS][12]``
+ - Features for each logical address. It is used in the CEC 2.0
+ ``CEC_MSG_REPORT_FEATURES`` message. The 12 bytes include both the
+ RC Profile and the Device Features. For CEC 1.4 you can either leave
+ this field to all 0, or fill it in according to the CEC 2.0 guidelines to
+ give the CEC framework more information about the device type, even
+ though the framework won't use it directly in the CEC message.
+
+.. tabularcolumns:: |p{7.8cm}|p{1.0cm}|p{8.7cm}|
+
+.. _cec-log-addrs-flags:
+
+.. flat-table:: Flags for struct cec_log_addrs
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 3 1 4
+
+ * .. _`CEC-LOG-ADDRS-FL-ALLOW-UNREG-FALLBACK`:
+
+ - ``CEC_LOG_ADDRS_FL_ALLOW_UNREG_FALLBACK``
+ - 1
+ - By default if no logical address of the requested type can be claimed, then
+ 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.
+ * .. _`CEC-LOG-ADDRS-FL-CDC-ONLY`:
+
+ - ``CEC_LOG_ADDRS_FL_CDC_ONLY``
+ - 4
+ - If this flag is set, then the device is CDC-Only. CDC-Only CEC devices
+ are CEC devices that can only handle CDC messages.
+
+ All other messages are ignored.
+
+.. tabularcolumns:: |p{7.8cm}|p{1.0cm}|p{8.7cm}|
+
+.. _cec-versions:
+
+.. flat-table:: CEC Versions
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 3 1 4
+
+ * .. _`CEC-OP-CEC-VERSION-1-3A`:
+
+ - ``CEC_OP_CEC_VERSION_1_3A``
+ - 4
+ - CEC version according to the HDMI 1.3a standard.
+ * .. _`CEC-OP-CEC-VERSION-1-4B`:
+
+ - ``CEC_OP_CEC_VERSION_1_4B``
+ - 5
+ - CEC version according to the HDMI 1.4b standard.
+ * .. _`CEC-OP-CEC-VERSION-2-0`:
+
+ - ``CEC_OP_CEC_VERSION_2_0``
+ - 6
+ - CEC version according to the HDMI 2.0 standard.
+
+.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
+
+.. _cec-prim-dev-types:
+
+.. flat-table:: CEC Primary Device Types
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 3 1 4
+
+ * .. _`CEC-OP-PRIM-DEVTYPE-TV`:
+
+ - ``CEC_OP_PRIM_DEVTYPE_TV``
+ - 0
+ - Use for a TV.
+ * .. _`CEC-OP-PRIM-DEVTYPE-RECORD`:
+
+ - ``CEC_OP_PRIM_DEVTYPE_RECORD``
+ - 1
+ - Use for a recording device.
+ * .. _`CEC-OP-PRIM-DEVTYPE-TUNER`:
+
+ - ``CEC_OP_PRIM_DEVTYPE_TUNER``
+ - 3
+ - Use for a device with a tuner.
+ * .. _`CEC-OP-PRIM-DEVTYPE-PLAYBACK`:
+
+ - ``CEC_OP_PRIM_DEVTYPE_PLAYBACK``
+ - 4
+ - Use for a playback device.
+ * .. _`CEC-OP-PRIM-DEVTYPE-AUDIOSYSTEM`:
+
+ - ``CEC_OP_PRIM_DEVTYPE_AUDIOSYSTEM``
+ - 5
+ - Use for an audio system (e.g. an audio/video receiver).
+ * .. _`CEC-OP-PRIM-DEVTYPE-SWITCH`:
+
+ - ``CEC_OP_PRIM_DEVTYPE_SWITCH``
+ - 6
+ - Use for a CEC switch.
+ * .. _`CEC-OP-PRIM-DEVTYPE-VIDEOPROC`:
+
+ - ``CEC_OP_PRIM_DEVTYPE_VIDEOPROC``
+ - 7
+ - Use for a video processor device.
+
+.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
+
+.. _cec-log-addr-types:
+
+.. flat-table:: CEC Logical Address Types
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 3 1 16
+
+ * .. _`CEC-LOG-ADDR-TYPE-TV`:
+
+ - ``CEC_LOG_ADDR_TYPE_TV``
+ - 0
+ - Use for a TV.
+ * .. _`CEC-LOG-ADDR-TYPE-RECORD`:
+
+ - ``CEC_LOG_ADDR_TYPE_RECORD``
+ - 1
+ - Use for a recording device.
+ * .. _`CEC-LOG-ADDR-TYPE-TUNER`:
+
+ - ``CEC_LOG_ADDR_TYPE_TUNER``
+ - 2
+ - Use for a tuner device.
+ * .. _`CEC-LOG-ADDR-TYPE-PLAYBACK`:
+
+ - ``CEC_LOG_ADDR_TYPE_PLAYBACK``
+ - 3
+ - Use for a playback device.
+ * .. _`CEC-LOG-ADDR-TYPE-AUDIOSYSTEM`:
+
+ - ``CEC_LOG_ADDR_TYPE_AUDIOSYSTEM``
+ - 4
+ - Use for an audio system device.
+ * .. _`CEC-LOG-ADDR-TYPE-SPECIFIC`:
+
+ - ``CEC_LOG_ADDR_TYPE_SPECIFIC``
+ - 5
+ - Use for a second TV or for a video processor device.
+ * .. _`CEC-LOG-ADDR-TYPE-UNREGISTERED`:
+
+ - ``CEC_LOG_ADDR_TYPE_UNREGISTERED``
+ - 6
+ - Use this if you just want to remain unregistered. Used for pure
+ CEC switches or CDC-only devices (CDC: Capability Discovery and
+ Control).
+
+
+.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
+
+.. _cec-all-dev-types-flags:
+
+.. flat-table:: CEC All Device Types Flags
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 3 1 4
+
+ * .. _`CEC-OP-ALL-DEVTYPE-TV`:
+
+ - ``CEC_OP_ALL_DEVTYPE_TV``
+ - 0x80
+ - This supports the TV type.
+ * .. _`CEC-OP-ALL-DEVTYPE-RECORD`:
+
+ - ``CEC_OP_ALL_DEVTYPE_RECORD``
+ - 0x40
+ - This supports the Recording type.
+ * .. _`CEC-OP-ALL-DEVTYPE-TUNER`:
+
+ - ``CEC_OP_ALL_DEVTYPE_TUNER``
+ - 0x20
+ - This supports the Tuner type.
+ * .. _`CEC-OP-ALL-DEVTYPE-PLAYBACK`:
+
+ - ``CEC_OP_ALL_DEVTYPE_PLAYBACK``
+ - 0x10
+ - This supports the Playback type.
+ * .. _`CEC-OP-ALL-DEVTYPE-AUDIOSYSTEM`:
+
+ - ``CEC_OP_ALL_DEVTYPE_AUDIOSYSTEM``
+ - 0x08
+ - This supports the Audio System type.
+ * .. _`CEC-OP-ALL-DEVTYPE-SWITCH`:
+
+ - ``CEC_OP_ALL_DEVTYPE_SWITCH``
+ - 0x04
+ - This supports the CEC Switch or Video Processing type.
+
+
+Return Value
+============
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+The :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>` can return the following
+error codes:
+
+ENOTTY
+ The ``CEC_CAP_LOG_ADDRS`` capability wasn't set, so this ioctl is not supported.
+
+EBUSY
+ The CEC adapter is currently configuring itself, or it is already configured and
+ ``num_log_addrs`` is non-zero, or another filehandle is in exclusive follower or
+ initiator mode, or the filehandle is in mode ``CEC_MODE_NO_INITIATOR``.
+
+EINVAL
+ The contents of struct :c:type:`cec_log_addrs` is invalid.