:orphan:

.. title:: CONFIG_LOG_BACKEND_RTT_MESSAGE_SIZE

.. kconfig:: CONFIG_LOG_BACKEND_RTT_MESSAGE_SIZE

CONFIG_LOG_BACKEND_RTT_MESSAGE_SIZE
###################################

*Size of internal buffer for storing messages.*

Type: ``int``

Help
====

.. code-block:: none

    This option defines maximum message size transferable to up-buffer.

Direct dependencies
===================

\ :kconfig:`LOG_BACKEND_RTT_MODE_DROP <CONFIG_LOG_BACKEND_RTT_MODE_DROP>` && \ :kconfig:`LOG_BACKEND_RTT <CONFIG_LOG_BACKEND_RTT>` && !\ :kconfig:`LOG_FRONTEND <CONFIG_LOG_FRONTEND>` && !\ :kconfig:`LOG_MINIMAL <CONFIG_LOG_MINIMAL>` && \ :kconfig:`LOG <CONFIG_LOG>`

*(Includes any dependencies from ifs and menus.)*

Default
=======

- 128

Kconfig definition
==================



At ``<Zephyr Subsystem>/logging/Kconfig.backends:126``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:44`` → ``<Zephyr Subsystem>/Kconfig:31`` → ``<Zephyr Subsystem>/logging/Kconfig:23``

Menu path: (Top) → Sub Systems and OS Services → Logging → Backends → Enable Segger J-Link RTT backend

.. code-block:: kconfig

    config LOG_BACKEND_RTT_MESSAGE_SIZE
    	int "Size of internal buffer for storing messages."
    	range 32 256
    	default 128
    	depends on LOG_BACKEND_RTT_MODE_DROP && LOG_BACKEND_RTT && !LOG_FRONTEND && !LOG_MINIMAL && LOG
    	help
    	  This option defines maximum message size transferable to up-buffer.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*