:orphan:

.. title:: BT_CTLR_DATA_LENGTH_CLEAR

.. option:: CONFIG_BT_CTLR_DATA_LENGTH_CLEAR

*Data Length Support (Cleartext only)*

Type: ``bool``

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.

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

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

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

Defaults
========

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

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

.. highlight:: kconfig

At ``subsys/bluetooth/controller/Kconfig.ll_sw_split:133``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:34`` → ``subsys/Kconfig:9`` → ``subsys/bluetooth/Kconfig:240`` → ``subsys/bluetooth/controller/Kconfig:594``

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

.. parsed-literal::

    config BT_CTLR_DATA_LENGTH_CLEAR
    	bool "Data Length Support (Cleartext only)" if \ :option:`BT_CTLR_ADVANCED_FEATURES <CONFIG_BT_CTLR_ADVANCED_FEATURES>`
    	depends on \ :option:`SOC_SERIES_NRF51X <CONFIG_SOC_SERIES_NRF51X>` && \ :option:`BT_LL_SW_SPLIT <CONFIG_BT_LL_SW_SPLIT>` && \ :option:`BT_CTLR <CONFIG_BT_CTLR>` && \ :option:`BT_HCI <CONFIG_BT_HCI>` && \ :option:`BT <CONFIG_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.)*