:orphan:

.. title:: BT_HCI_TX_STACK_SIZE

.. option:: CONFIG_BT_HCI_TX_STACK_SIZE

*HCI Tx thread stack size*

Type: ``int``

Help
====

Stack size needed for executing bt_send with specified driver.
NOTE: This is an advanced setting and should not be changed unless
absolutely necessary

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

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

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

Defaults
========

- 512 if \ :option:`BT_H4 <CONFIG_BT_H4>`
- 512 if \ :option:`BT_H5 <CONFIG_BT_H5>`
- 416 if \ :option:`BT_SPI <CONFIG_BT_SPI>`
- 940 if \ :option:`BT_CTLR <CONFIG_BT_CTLR>` && \ :option:`BT_LL_SW_SPLIT <CONFIG_BT_LL_SW_SPLIT>` && \ :option:`NO_OPTIMIZATIONS <CONFIG_NO_OPTIMIZATIONS>`
- 1024 if \ :option:`BT_CTLR <CONFIG_BT_CTLR>` && \ :option:`BT_LL_SW_SPLIT <CONFIG_BT_LL_SW_SPLIT>` && \ :option:`BT_CENTRAL <CONFIG_BT_CENTRAL>`
- 640 if \ :option:`BT_CTLR <CONFIG_BT_CTLR>` && \ :option:`BT_LL_SW_SPLIT <CONFIG_BT_LL_SW_SPLIT>`
- 512 if \ :option:`BT_USERCHAN <CONFIG_BT_USERCHAN>`
- 640 if \ :option:`BT_STM32_IPM <CONFIG_BT_STM32_IPM>`
- 1024

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

.. highlight:: kconfig

At ``subsys/bluetooth/host/Kconfig:74``

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

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

.. parsed-literal::

    config BT_HCI_TX_STACK_SIZE
    	int "HCI Tx thread stack size" if \ :option:`BT_HCI_TX_STACK_SIZE_WITH_PROMPT <CONFIG_BT_HCI_TX_STACK_SIZE_WITH_PROMPT>`
    	default 512 if \ :option:`BT_H4 <CONFIG_BT_H4>`
    	default 512 if \ :option:`BT_H5 <CONFIG_BT_H5>`
    	default 416 if \ :option:`BT_SPI <CONFIG_BT_SPI>`
    	default 940 if \ :option:`BT_CTLR <CONFIG_BT_CTLR>` && \ :option:`BT_LL_SW_SPLIT <CONFIG_BT_LL_SW_SPLIT>` && \ :option:`NO_OPTIMIZATIONS <CONFIG_NO_OPTIMIZATIONS>`
    	default 1024 if \ :option:`BT_CTLR <CONFIG_BT_CTLR>` && \ :option:`BT_LL_SW_SPLIT <CONFIG_BT_LL_SW_SPLIT>` && \ :option:`BT_CENTRAL <CONFIG_BT_CENTRAL>`
    	default 640 if \ :option:`BT_CTLR <CONFIG_BT_CTLR>` && \ :option:`BT_LL_SW_SPLIT <CONFIG_BT_LL_SW_SPLIT>`
    	default 512 if \ :option:`BT_USERCHAN <CONFIG_BT_USERCHAN>`
    	default 640 if \ :option:`BT_STM32_IPM <CONFIG_BT_STM32_IPM>`
    	default 1024
    	depends on \ :option:`BT_HCI <CONFIG_BT_HCI>` && \ :option:`BT <CONFIG_BT>`
    	help
    	  Stack size needed for executing bt_send with specified driver.
    	  NOTE: This is an advanced setting and should not be changed unless
    	  absolutely necessary

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