:orphan:

.. title:: CONFIG_ESP32_WIFI_STATIC_RX_BUFFER_NUM

.. kconfig:: CONFIG_ESP32_WIFI_STATIC_RX_BUFFER_NUM

CONFIG_ESP32_WIFI_STATIC_RX_BUFFER_NUM
######################################

*Max number of WiFi static RX buffers*

Type: ``int``

Help
====

.. code-block:: none

    Set the number of WiFi static RX buffers. Each buffer takes approximately
    1.6KB of RAM. The static rx buffers are allocated when esp_wifi_init is
    called, they are not freed until esp_wifi_deinit is called.

    WiFi hardware use these buffers to receive all 802.11 frames. A higher
    number may allow higher throughput but increases memory use.
    If ESP32_WIFI_AMPDU_RX_ENABLED is enabled, this value is recommended to
    set equal or bigger than ESP32_WIFI_RX_BA_WIN in order to achieve better
    throughput and compatibility with both stations and APs.

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

\ :kconfig:`WIFI_ESP32 <CONFIG_WIFI_ESP32>` && \ :kconfig:`WIFI <CONFIG_WIFI>`

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

Default
=======

- 10

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



At ``<Zephyr Driver>/wifi/esp32/Kconfig.esp32:40``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:42`` → ``<Zephyr Driver>/Kconfig:78`` → ``<Zephyr Driver>/wifi/Kconfig:36``

Menu path: (Top) → Device Drivers → Wi-Fi Drivers → ESP32 SoC WiFi support

.. code-block:: kconfig

    config ESP32_WIFI_STATIC_RX_BUFFER_NUM
    	int "Max number of WiFi static RX buffers"
    	range 2 25
    	default 10
    	depends on WIFI_ESP32 && WIFI
    	help
    	  Set the number of WiFi static RX buffers. Each buffer takes approximately
    	  1.6KB of RAM. The static rx buffers are allocated when esp_wifi_init is
    	  called, they are not freed until esp_wifi_deinit is called.
	  
    	  WiFi hardware use these buffers to receive all 802.11 frames. A higher
    	  number may allow higher throughput but increases memory use.
    	  If ESP32_WIFI_AMPDU_RX_ENABLED is enabled, this value is recommended to
    	  set equal or bigger than ESP32_WIFI_RX_BA_WIN in order to achieve better
    	  throughput and compatibility with both stations and APs.

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