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@@ -580,6 +580,8 @@ esp_err_t esp_wifi_get_bandwidth(wifi_interface_t ifx, wifi_bandwidth_t *bw);
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* @attention 2. When ESP32 is in STA mode, this API should not be called when STA is scanning or connecting to an external AP
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* @attention 3. When ESP32 is in softAP mode, this API should not be called when softAP has connected to external STAs
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* @attention 4. When ESP32 is in STA+softAP mode, this API should not be called when in the scenarios described above
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+ * @attention 5. The channel info set by this API will not be stored in NVS. So If you want to remeber the channel used before wifi stop,
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+ * you need to call this API again after wifi start, or you can call `esp_wifi_set_config()` to store the channel info in NVS.
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*
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* @param primary for HT20, primary is the channel number, for HT40, primary is the primary channel
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* @param second for HT20, second is ignored, for HT40, second is the second channel
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@@ -789,6 +791,7 @@ esp_err_t esp_wifi_get_promiscuous_ctrl_filter(wifi_promiscuous_filter_t *filter
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* @attention 2. For station configuration, bssid_set needs to be 0; and it needs to be 1 only when users need to check the MAC address of the AP.
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* @attention 3. ESP32 is limited to only one channel, so when in the soft-AP+station mode, the soft-AP will adjust its channel automatically to be the same as
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* the channel of the ESP32 station.
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+ * @attention 4. The configuration will be stored in NVS
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*
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* @param interface interface
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* @param conf station or soft-AP configuration
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zhangyanjiao