Espressif ESP32-S2 Programming Manual page 164

Chapter 2. API Reference
• [in] csa_newchan: the new channel number to which the whole network is moving
• [in] csa_count: channel switch period(beacon count), unit is based on beacon interval of its
softAP, the default value is 15.
esp_err_t esp_mesh_get_router_bssid(uint8_t *router_bssid)
Get the router BSSID.
Return
• ESP_OK
• ESP_ERR_WIFI_NOT_INIT
• ESP_ERR_WIFI_ARG
Parameters
• [out] router_bssid: pointer to the router BSSID
int64_t esp_mesh_get_tsf_time(void)
Get the TSF time.
Return the TSF time
esp_err_t esp_mesh_set_topology(esp_mesh_topology_t
Set mesh topology. The default value is MESH_TOPO_TREE.
• MESH_TOPO_CHAIN supports up to 1000 layers
Attention This API shall be called before mesh is started.
Return
• ESP_OK
• ESP_MESH_ERR_ARGUMENT
• ESP_ERR_MESH_NOT_ALLOWED
Parameters
• [in] topo: MESH_TOPO_TREE or MESH_TOPO_CHAIN
esp_mesh_topology_t esp_mesh_get_topology(void)
Get mesh topology.
Return MESH_TOPO_TREE or MESH_TOPO_CHAIN
esp_err_t esp_mesh_enable_ps(void)
Enable mesh Power Save function.
Attention This API shall be called before mesh is started.
Return
• ESP_OK
• ESP_ERR_WIFI_NOT_INIT
• ESP_ERR_MESH_NOT_ALLOWED
esp_err_t esp_mesh_disable_ps(void)
Disable mesh Power Save function.
Attention This API shall be called before mesh is started.
Return
• ESP_OK
• ESP_ERR_WIFI_NOT_INIT
• ESP_ERR_MESH_NOT_ALLOWED
bool esp_mesh_is_ps_enabled(void)
Check whether the mesh Power Save function is enabled.
Return true/false
bool esp_mesh_is_device_active(void)
Check whether the device is in active state.
• If the device is not in active state, it will neither transmit nor receive frames.
Return true/false
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