:orphan:

.. title:: CONFIG_BT_HCI_ACL_FLOW_CONTROL

.. kconfig:: CONFIG_BT_HCI_ACL_FLOW_CONTROL

CONFIG_BT_HCI_ACL_FLOW_CONTROL
##############################

*Controller to Host ACL flow control support*

Type: ``bool``

Help
====

.. code-block:: none

    Enable support for throttling ACL buffers from the controller
    to the host. This is particularly useful when the host and
    controller are on separate cores since it ensures that we do
    not run out of incoming ACL buffers.

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

(\ :kconfig:`BT <CONFIG_BT>` && \ :kconfig:`SHIELD_X_NUCLEO_IDB05A1 <CONFIG_SHIELD_X_NUCLEO_IDB05A1>`) || (\ :kconfig:`BT <CONFIG_BT>` && \ :kconfig:`SHIELD_X_NUCLEO_IDB05A1 <CONFIG_SHIELD_X_NUCLEO_IDB05A1>`) || (\ :kconfig:`BT <CONFIG_BT>` && \ :kconfig:`BOARD_B_L4S5I_IOT01A <CONFIG_BOARD_B_L4S5I_IOT01A>`) || (\ :kconfig:`BT <CONFIG_BT>` && \ :kconfig:`BOARD_DISCO_L475_IOT1 <CONFIG_BOARD_DISCO_L475_IOT1>`) || (\ :kconfig:`BT <CONFIG_BT>` && \ :kconfig:`BOARD_STM32L562E_DK <CONFIG_BOARD_STM32L562E_DK>`) || (\ :kconfig:`BT <CONFIG_BT>` && \ :kconfig:`SHIELD_X_NUCLEO_IDB05A1 <CONFIG_SHIELD_X_NUCLEO_IDB05A1>`) || (\ :kconfig:`BT_CONN <CONFIG_BT_CONN>` && \ :kconfig:`BT_HCI <CONFIG_BT_HCI>` && \ :kconfig:`BT <CONFIG_BT>`)

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

Defaults
========

- n
- n
- n
- n
- n
- n
- y if !\ :kconfig:`BT_CTLR <CONFIG_BT_CTLR>` && !\ :kconfig:`BT_STM32_IPM <CONFIG_BT_STM32_IPM>` && !\ :kconfig:`BT_ESP32 <CONFIG_BT_ESP32>`
- y if \ :kconfig:`BT_HCI_RAW <CONFIG_BT_HCI_RAW>`

Symbols selected by this symbol
===============================

- \ :kconfig:`POLL <CONFIG_POLL>`

Kconfig definitions
===================



At ``<Zephyr Boards>/shields/x_nucleo_idb05a1/Kconfig.defconfig:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:18`` → ``<BuildDir>/kconfig/Kconfig.shield.defconfig:1``

Menu path: (Top)

.. code-block:: kconfig

    config BT_HCI_ACL_FLOW_CONTROL
    	bool
    	default n
    	depends on BT && SHIELD_X_NUCLEO_IDB05A1

----

At ``<Zephyr Boards>/shields/x_nucleo_idb05a1/Kconfig.defconfig:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:20``

Menu path: (Top)

.. code-block:: kconfig

    config BT_HCI_ACL_FLOW_CONTROL
    	bool
    	default n
    	depends on BT && SHIELD_X_NUCLEO_IDB05A1

----

At ``<Zephyr Boards>/arm/b_l4s5i_iot01a/Kconfig.defconfig:43``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:22``

Menu path: (Top)

.. code-block:: kconfig

    config BT_HCI_ACL_FLOW_CONTROL
    	bool
    	default n
    	depends on BT && BOARD_B_L4S5I_IOT01A

----

At ``<Zephyr Boards>/arm/disco_l475_iot1/Kconfig.defconfig:48``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:22``

Menu path: (Top)

.. code-block:: kconfig

    config BT_HCI_ACL_FLOW_CONTROL
    	bool
    	default n
    	depends on BT && BOARD_DISCO_L475_IOT1

----

At ``<Zephyr Boards>/arm/stm32l562e_dk/Kconfig.defconfig:32``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:22``

Menu path: (Top)

.. code-block:: kconfig

    config BT_HCI_ACL_FLOW_CONTROL
    	bool
    	default n
    	depends on BT && BOARD_STM32L562E_DK

----

At ``<Zephyr Boards>/shields/x_nucleo_idb05a1/Kconfig.defconfig:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:22``

Menu path: (Top)

.. code-block:: kconfig

    config BT_HCI_ACL_FLOW_CONTROL
    	bool
    	default n
    	depends on BT && SHIELD_X_NUCLEO_IDB05A1

----

At ``<Zephyr Subsystem>/bluetooth/Kconfig:137``

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

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

.. code-block:: kconfig

    config BT_HCI_ACL_FLOW_CONTROL
    	bool "Controller to Host ACL flow control support"
    	default y if !BT_CTLR && !BT_STM32_IPM && !BT_ESP32
    	default y if BT_HCI_RAW
    	select POLL
    	depends on BT_CONN && BT_HCI && BT
    	help
    	  Enable support for throttling ACL buffers from the controller
    	  to the host. This is particularly useful when the host and
    	  controller are on separate cores since it ensures that we do
    	  not run out of incoming ACL buffers.

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