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.  To change this you must first select
BT_HCI_TX_STACK_SIZE_WITH_PROMPT.

Direct dependencies

BT_HCI && BT

(Includes any dependencies from ifs and menus.)

Defaults

• 512 if BT_H4

• 512 if BT_H5

• 416 if BT_SPI

• 940 if BT_CTLR && BT_LL_SW_SPLIT && NO_OPTIMIZATIONS

• 1024 if BT_CTLR && BT_LL_SW_SPLIT && BT_CENTRAL

• 640 if BT_CTLR && BT_LL_SW_SPLIT

• 512 if BT_USERCHAN

• 640 if BT_STM32_IPM

• 1024

Kconfig definition

At <Zephyr Subsystem>/bluetooth/host/Kconfig:17

Included via Kconfig:8 → Kconfig.zephyr:44 → <Zephyr Subsystem>/Kconfig:9 → <Zephyr Subsystem>/bluetooth/Kconfig:174

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

config BT_HCI_TX_STACK_SIZE
    int "HCI Tx thread stack size" if BT_HCI_TX_STACK_SIZE_WITH_PROMPT
    default 512 if BT_H4
    default 512 if BT_H5
    default 416 if BT_SPI
    default 940 if BT_CTLR && BT_LL_SW_SPLIT && NO_OPTIMIZATIONS
    default 1024 if BT_CTLR && BT_LL_SW_SPLIT && BT_CENTRAL
    default 640 if BT_CTLR && BT_LL_SW_SPLIT
    default 512 if BT_USERCHAN
    default 640 if BT_STM32_IPM
    default 1024
    depends on BT_HCI && 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.  To change this you must first select
      BT_HCI_TX_STACK_SIZE_WITH_PROMPT.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)