Function esp_wifi_set_vendor_ie_with_ret_cb 

pub unsafe extern "C" fn esp_wifi_set_vendor_ie_with_ret_cb(
    cb: esp_vendor_ie_cb_with_ret_t,
    ctx: *mut c_void,
) -> esp_err_t

@brief Register Vendor-Specific Information Element monitoring callback.

@param cb Callback function with return value @param ctx Context argument, passed to callback function.

@return

• ESP_OK: succeed
• ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by esp_wifi_init