Espressif ESP32-S2 User Manual

Chapter 2. API Reference
• [in] esp_netif: esp network interface handle created for Ethernet driver
esp_err_t esp_eth_clear_default_handlers(void *esp_netif)
Unregister default IP layer handlers for Ethernet.
Warning : This function is deprecated and is kept here only for compatibility reasons. Unregistration
of default IP layer handlers for Ethernet is now handled automatically if not registered by calling
esp_eth_set_default_handlers.
Return
• ESP_ERR_INVALID_ARG: invalid parameter (esp_netif is NULL)
• ESP_OK: clear default IP layer handlers successfully
• others: other failure occurred during unregister esp_event handler
Parameters
• [in] esp_netif: esp network interface handle created for Ethernet driver
Type Definitions
typedef struct esp_eth_netif_glue_t *esp_eth_netif_glue_handle_t
Handle of netif glue - an intermediate layer between netif and Ethernet driver.
Code examples for the Ethernet API are provided in the ethernet directory of ESP-IDF examples.
2.1.3 Thread
Thread
Introduction Thread is a IP-based mesh networking protocol. It’s based on the 802.15.4 physical and MAC
layer.
Application Examples The openthread directory of ESP-IDF examples contains the following applications:
• The OpenThread interactive shell openthread/ot_cli.
• The Thread border router openthread/ot_br.
• The Thread radio co-processor openthread/ot_rcp.
API Reference For manipulating the Thread network, the OpenThread api shall be used. The OpenThread api
docs can be found at the OpenThread official website.
ESP-IDF provides extra apis for launching and managing the OpenThread stack, binding to network interfaces and
border routing features.
Header File
• components/openthread/include/esp_openthread.h
Functions
esp_err_t esp_openthread_init(const esp_openthread_platform_config_t *init_config)
Initializes the full OpenThread stack.
Note The OpenThread instance will also be initialized in this function.
Return
• ESP_OK on success
• ESP_ERR_NO_MEM if allocation has failed
• ESP_ERR_INVALID_ARG if radio or host connection mode not supported
• ESP_ERR_INVALID_STATE if already initialized
Parameters
• [in] init_config: The initialization configuration.
esp_err_t esp_openthread_launch_mainloop(void)
Launches the OpenThread main loop.
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Espressif ESP32-S2 Specifications

General

Brand	Espressif
Model	ESP32-S2
Category	Single board computers
Language	English