:orphan:

.. title:: CONFIG_CAN_MAX_FILTER

.. kconfig:: CONFIG_CAN_MAX_FILTER

CONFIG_CAN_MAX_FILTER
#####################

*Maximum number of concurrent active filters*

*Maximum number of concurrent active RX filters*

*Maximum number of concurrent active filters*

*Maximum number of concurrent active filters*

Type: ``int``

Help
====

.. code-block:: none

    Defines the array size of the callback/msgq pointers.
    Must be at least the size of concurrent reads.

Help
====

.. code-block:: none

    Defines maximum number of concurrent active RX filters

Help
====

.. code-block:: none

    Defines the array size of the callback/msgq pointers.
    Must be at least the size of concurrent reads.

Help
====

.. code-block:: none

    Defines the array size of the filters.
    Must be at least the size of concurrent reads.

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

(\ :kconfig:`CAN_STM32 <CONFIG_CAN_STM32>` && \ :kconfig:`CAN <CONFIG_CAN>`) || (\ :kconfig:`CAN_MCUX_FLEXCAN <CONFIG_CAN_MCUX_FLEXCAN>` && \ :kconfig:`CAN <CONFIG_CAN>`) || (\ :kconfig:`CAN_MCP2515 <CONFIG_CAN_MCP2515>` && \ :kconfig:`CAN <CONFIG_CAN>`) || (\ :kconfig:`CAN_LOOPBACK <CONFIG_CAN_LOOPBACK>` && \ :kconfig:`CAN <CONFIG_CAN>`)

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

Defaults
========

- 5
- 5
- 5
- 16

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



At ``<Zephyr>/drivers/can/Kconfig.stm32:16``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:40`` → ``<Zephyr>/drivers/Kconfig:80`` → ``<Zephyr>/drivers/can/Kconfig:89``

Menu path: (Top) → Device Drivers → CAN Drivers → STM32 CAN Driver

.. code-block:: kconfig

    config CAN_MAX_FILTER
    	int "Maximum number of concurrent active filters"
    	range 1 56
    	default 5
    	depends on CAN_STM32 && CAN
    	help
    	  Defines the array size of the callback/msgq pointers.
    	  Must be at least the size of concurrent reads.

----

At ``<Zephyr>/drivers/can/Kconfig.mcux:13``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:40`` → ``<Zephyr>/drivers/Kconfig:80`` → ``<Zephyr>/drivers/can/Kconfig:91``

Menu path: (Top) → Device Drivers → CAN Drivers → MCUX FlexCAN driver

.. code-block:: kconfig

    config CAN_MAX_FILTER
    	int "Maximum number of concurrent active RX filters"
    	range 1 15 if SOC_SERIES_KINETIS_KE1XF || SOC_SERIES_KINETIS_K6X
    	range 1 64 if SOC_SERIES_IMX_RT
    	default 5
    	depends on CAN_MCUX_FLEXCAN && CAN
    	help
    	  Defines maximum number of concurrent active RX filters

----

At ``<Zephyr>/drivers/can/Kconfig.mcp2515:29``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:40`` → ``<Zephyr>/drivers/Kconfig:80`` → ``<Zephyr>/drivers/can/Kconfig:92``

Menu path: (Top) → Device Drivers → CAN Drivers → MCP2515 CAN Driver

.. code-block:: kconfig

    config CAN_MAX_FILTER
    	int "Maximum number of concurrent active filters"
    	range 1 32
    	default 5
    	depends on CAN_MCP2515 && CAN
    	help
    	  Defines the array size of the callback/msgq pointers.
    	  Must be at least the size of concurrent reads.

----

At ``<Zephyr>/drivers/can/Kconfig.loopback:19``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:40`` → ``<Zephyr>/drivers/Kconfig:80`` → ``<Zephyr>/drivers/can/Kconfig:95``

Menu path: (Top) → Device Drivers → CAN Drivers → Loopback CAN driver

.. code-block:: kconfig

    config CAN_MAX_FILTER
    	int "Maximum number of concurrent active filters"
    	range 1 1024
    	default 16
    	depends on CAN_LOOPBACK && CAN
    	help
    	  Defines the array size of the filters.
    	  Must be at least the size of concurrent reads.

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