:orphan:

.. title:: CONFIG_BT_BUF_EVT_RX_SIZE

.. kconfig:: CONFIG_BT_BUF_EVT_RX_SIZE

CONFIG_BT_BUF_EVT_RX_SIZE
#########################

*Maximum supported HCI Event buffer length*

Type: ``int``

Help
====

.. code-block:: none

    Maximum supported HCI event buffer size. This value does not include
    the HCI Event header.
    This value is used by both the Host and the Controller for buffer
    sizes that include HCI events. It should be set according to the
    expected HCI events that can be generated from the configuration.
    If the subset of possible HCI events is unknown, this should be set to
    the maximum of 255.

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

\ :kconfig:`BT_HCI <CONFIG_BT_HCI>` && \ :kconfig:`BT <CONFIG_BT>`

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

Defaults
========

- 255 if (\ :kconfig:`BT_EXT_ADV <CONFIG_BT_EXT_ADV>` && !(\ :kconfig:`BT_BUF_EVT_DISCARDABLE_COUNT <CONFIG_BT_BUF_EVT_DISCARDABLE_COUNT>` > 0)) || \ :kconfig:`BT_PER_ADV <CONFIG_BT_PER_ADV>`
- 68

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



At ``<Zephyr Subsystem>/bluetooth/common/Kconfig:112``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:44`` → ``<Zephyr Subsystem>/Kconfig:9`` → ``<Zephyr Subsystem>/bluetooth/Kconfig:173``

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

.. code-block:: kconfig

    config BT_BUF_EVT_RX_SIZE
    	int "Maximum supported HCI Event buffer length"
    	range 68 255
    	default 255 if (BT_EXT_ADV && !(BT_BUF_EVT_DISCARDABLE_COUNT > 0)) || BT_PER_ADV
    	default 68
    	depends on BT_HCI && BT
    	help
    	  Maximum supported HCI event buffer size. This value does not include
    	  the HCI Event header.
    	  This value is used by both the Host and the Controller for buffer
    	  sizes that include HCI events. It should be set according to the
    	  expected HCI events that can be generated from the configuration.
    	  If the subset of possible HCI events is unknown, this should be set to
    	  the maximum of 255.

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