:orphan:

.. title:: CONFIG_BT_BUF_EVT_DISCARDABLE_COUNT

.. kconfig:: CONFIG_BT_BUF_EVT_DISCARDABLE_COUNT

CONFIG_BT_BUF_EVT_DISCARDABLE_COUNT
###################################

*Number of discardable HCI Event buffers*

Type: ``int``

Help
====

.. code-block:: none

    Number of buffers in a separate buffer pool for events which
    the HCI driver considers discardable. Examples of such events
    could be e.g. Advertising Reports. The benefit of having such
    a pool is that the if there is a heavy inflow of such events
    it will not cause the allocation for other critical events to
    block and may even eliminate deadlocks in some cases.

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

!\ :kconfig:`BT_HCI_RAW <CONFIG_BT_HCI_RAW>` && \ :kconfig:`BT_HCI <CONFIG_BT_HCI>` && \ :kconfig:`BT <CONFIG_BT>`

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

Defaults
========

- 20 if \ :kconfig:`BT_MESH <CONFIG_BT_MESH>`
- 3

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



At ``<Zephyr Subsystem>/bluetooth/common/Kconfig:151``

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_DISCARDABLE_COUNT
    	int "Number of discardable HCI Event buffers"
    	range 1 255
    	default 20 if BT_MESH
    	default 3
    	depends on !BT_HCI_RAW && BT_HCI && BT
    	help
    	  Number of buffers in a separate buffer pool for events which
    	  the HCI driver considers discardable. Examples of such events
    	  could be e.g. Advertising Reports. The benefit of having such
    	  a pool is that the if there is a heavy inflow of such events
    	  it will not cause the allocation for other critical events to
    	  block and may even eliminate deadlocks in some cases.

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