Espressif ESP32-S2 Programming Manual page 123

Chapter 2. API Reference
Public Members
wifi_pkt_rx_ctrl_t rx_ctrl
received packet radio metadata header of the CSI data
uint8_t mac[6]
source MAC address of the CSI data
bool first_word_invalid
first four bytes of the CSI data is invalid or not
int8_t *buf
buffer of CSI data
uint16_t len
length of CSI data
struct wifi_ant_gpio_t
WiFi GPIO configuration for antenna selection.
Public Members
uint8_t gpio_select : 1
Whether this GPIO is connected to external antenna switch
uint8_t gpio_num : 7
The GPIO number that connects to external antenna switch
struct wifi_ant_gpio_config_t
WiFi GPIOs configuration for antenna selection.
Public Members
wifi_ant_gpio_t gpio_cfg[4]
The configurations of GPIOs that connect to external antenna switch
struct wifi_ant_config_t
WiFi antenna configuration.
Public Members
wifi_ant_mode_t rx_ant_mode
WiFi antenna mode for receiving
wifi_ant_t rx_ant_default
Default antenna mode for receiving, it's ignored if rx_ant_mode is not WIFI_ANT_MODE_AUTO
wifi_ant_mode_t tx_ant_mode
WiFi antenna mode for transmission, it can be set to WIFI_ANT_MODE_AUTO only if rx_ant_mode
is set to WIFI_ANT_MODE_AUTO
uint8_t enabled_ant0 : 4
Index (in antenna GPIO configuration) of enabled WIFI_ANT_MODE_ANT0
uint8_t enabled_ant1 : 4
Index (in antenna GPIO configuration) of enabled WIFI_ANT_MODE_ANT1
struct wifi_action_tx_req_t
Action Frame Tx Request.
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