CONFIG_ESP32_WIFI_STATIC_RX_BUFFER_NUM¶
Max number of WiFi static RX buffers
Type: int
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.
Direct dependencies¶
WIFI_ESP32 && WIFI
(Includes any dependencies from ifs and menus.)
Default¶
10
Kconfig definition¶
At drivers/wifi/esp32/Kconfig.esp32:40
Included via Kconfig:8 → Kconfig.zephyr:42 → drivers/Kconfig:78 → drivers/wifi/Kconfig:36
Menu path: (Top) → Device Drivers → Wi-Fi Drivers → ESP32 SoC WiFi support
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.)