:orphan:

.. title:: BT_L2CAP_TX_MTU

.. option:: CONFIG_BT_L2CAP_TX_MTU

*Maximum supported L2CAP MTU for L2CAP TX buffers*

Type: ``int``

Help
====

Maximum L2CAP MTU for L2CAP TX buffers.

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

\ :option:`BT_CONN <CONFIG_BT_CONN>` && \ :option:`BT_HCI_HOST <CONFIG_BT_HCI_HOST>` && \ :option:`BT_HCI <CONFIG_BT_HCI>` && \ :option:`BT <CONFIG_BT>`

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

Defaults
========

- 253 if \ :option:`BT_BREDR <CONFIG_BT_BREDR>`
- 65 if \ :option:`BT_SMP <CONFIG_BT_SMP>`
- 23

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

.. highlight:: kconfig

At ``subsys/bluetooth/host/Kconfig.l2cap:42``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:34`` → ``subsys/Kconfig:9`` → ``subsys/bluetooth/Kconfig:239`` → ``subsys/bluetooth/host/Kconfig:506``

Menu path: (Top) → Sub Systems and OS Services → Bluetooth → L2CAP Options

.. parsed-literal::

    config BT_L2CAP_TX_MTU
    	int "Maximum supported L2CAP MTU for L2CAP TX buffers"
    	range 65 2000 if \ :option:`BT_SMP <CONFIG_BT_SMP>`
    	range 23 2000
    	default 253 if \ :option:`BT_BREDR <CONFIG_BT_BREDR>`
    	default 65 if \ :option:`BT_SMP <CONFIG_BT_SMP>`
    	default 23
    	depends on \ :option:`BT_CONN <CONFIG_BT_CONN>` && \ :option:`BT_HCI_HOST <CONFIG_BT_HCI_HOST>` && \ :option:`BT_HCI <CONFIG_BT_HCI>` && \ :option:`BT <CONFIG_BT>`
    	help
    	  Maximum L2CAP MTU for L2CAP TX buffers.

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