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doc/release/3.3: Notes on changes in MCUmgr subsystem tree

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Added notes on changes in MCUmgr subsystem tree.

Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
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Dominik Ermel 2022-11-09 11:35:47 +00:00 • committed by Carles Cufí
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doc/releases/release-notes-3.3.rst
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@ -333,6 +333,36 @@ Libraries / Subsystems
access with ``reader`` to successfully build. access with ``reader`` to successfully build.
* MCUmgr callback system has been reworked with a unified singular interface * MCUmgr callback system has been reworked with a unified singular interface
which supports status passing to the handler (:ref:`mcumgr_callbacks`). which supports status passing to the handler (:ref:`mcumgr_callbacks`).
* MCUmgr subsystem directory structure has been flattened and contents of the
lib subdirectory has been redistributed into following directories:
.. table::
:align: center
+----------------+-------------------------------------------+
| Subdirectory | MCUmgr area |
+================+===========================================+
| mgmt | MCUmgr management functions, group |
| | registration, and so on; |
+----------------+-------------------------------------------+
| smp | Simple Management Protocol processing; |
+----------------+-------------------------------------------+
| transport | Transport support and transport API; |
+----------------+-------------------------------------------+
| grp | Command groups, formerly lib/cmd; |
| | each group, which has Zephyr built in |
| | support has its own directory here; |
+----------------+-------------------------------------------+
| util | Utilities used by various subareas of |
| | MCUmgr. |
+----------------+-------------------------------------------+
Public API interfaces for above areas are now exported through zephyr_interface,
and headers for them reside in ``zephyr/mgmt/mcumgr/<mcumgr_subarea>/``.
For example to access mgmt API include ``<zephyr/mgmt/mcumgr/mgmt/mgmt.h>``.
Private headers for above areas can be accessed, when required, using paths:
``mgmt/mcumgr/mgmt/<mcumgr_subarea>/``.
* LwM2M * LwM2M