:orphan:

.. title:: CONFIG_ISOTP_RX_SF_FF_BUF_COUNT

.. kconfig:: CONFIG_ISOTP_RX_SF_FF_BUF_COUNT

CONFIG_ISOTP_RX_SF_FF_BUF_COUNT
###############################

*Number of SF and FF data buffers for receiving data*

Type: ``int``

Help
====

.. code-block:: none

    This buffer is used for first and single frames. It is extra because the
    buffer has to be ready for the first reception in isr context and therefor
    is allocated when binding.
    Each buffer will occupy CAN_DL - 1 byte + header (sizeof(struct net_buf))
    amount of data.

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

\ :kconfig:`ISOTP <CONFIG_ISOTP>`

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

Default
=======

- 4

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



At ``<Zephyr Subsystem>/canbus/isotp/Kconfig:81``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:44`` → ``<Zephyr Subsystem>/Kconfig:11`` → ``<Zephyr Subsystem>/canbus/Kconfig:9``

Menu path: (Top) → Sub Systems and OS Services → Controller Area Network (CAN) bus subsystem → ISO-TP Transport [EXPERIMENTAL]

.. code-block:: kconfig

    config ISOTP_RX_SF_FF_BUF_COUNT
    	int "Number of SF and FF data buffers for receiving data"
    	default 4
    	depends on ISOTP
    	help
    	  This buffer is used for first and single frames. It is extra because the
    	  buffer has to be ready for the first reception in isr context and therefor
    	  is allocated when binding.
    	  Each buffer will occupy CAN_DL - 1 byte + header (sizeof(struct net_buf))
    	  amount of data.

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