:orphan:

.. title:: CONFIG_BT_CTLR_DATA_LENGTH_CLEAR

.. kconfig:: CONFIG_BT_CTLR_DATA_LENGTH_CLEAR

CONFIG_BT_CTLR_DATA_LENGTH_CLEAR
################################

*Data Length Support (Cleartext only)*

Type: ``bool``

Help
====

.. code-block:: none

    Enable support for Bluetooth v4.2 LE Data Length Update procedure, up to
    251 byte cleartext payloads in the Controller. Encrypted connections
    are not supported.

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

\ :kconfig:`SOC_SERIES_NRF51X <CONFIG_SOC_SERIES_NRF51X>` && \ :kconfig:`BT_LL_SW_SPLIT <CONFIG_BT_LL_SW_SPLIT>` && \ :kconfig:`BT_CTLR <CONFIG_BT_CTLR>` && \ :kconfig:`BT_HCI <CONFIG_BT_HCI>` && \ :kconfig:`BT <CONFIG_BT>`

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

Defaults
========

No defaults. Implicitly defaults to ``n``.

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



At ``<Zephyr Subsystem>/bluetooth/controller/Kconfig.ll_sw_split:137``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:44`` → ``<Zephyr Subsystem>/Kconfig:9`` → ``<Zephyr Subsystem>/bluetooth/Kconfig:175`` → ``<Zephyr Subsystem>/bluetooth/controller/Kconfig:659``

Menu path: (Top) → Sub Systems and OS Services → Bluetooth → Bluetooth Controller → Advanced features

.. code-block:: kconfig

    config BT_CTLR_DATA_LENGTH_CLEAR
    	bool "Data Length Support (Cleartext only)" if BT_CTLR_ADVANCED_FEATURES
    	depends on SOC_SERIES_NRF51X && BT_LL_SW_SPLIT && BT_CTLR && BT_HCI && BT
    	help
    	  Enable support for Bluetooth v4.2 LE Data Length Update procedure, up to
    	  251 byte cleartext payloads in the Controller. Encrypted connections
    	  are not supported.

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