typedef void (*tethering_data_usage_cb)(tethering_error_e result, unsigned long long received_data, unsigned long long sent_data, void *user_data);
/**
+ * @brief Called when the security type of Wi-Fi tethering is changed
+ * @param[in] changed_type The changed security type of Wi-Fi tethering
+ * @param[in] user_data The user data passed from the register function
+ * @see tethering_wifi_set_security_type_changed_cb()
+ * @see tethering_wifi_unset_security_type_changed_cb()
+ */
+typedef void (*tethering_wifi_security_type_changed_cb)(tethering_wifi_security_type_e changed_type, void *user_data);
+
+/**
+ * @brief Called when the visibility of SSID is changed
+ * @param[in] changed_visible The changed visibility of SSID
+ * @param[in] user_data The user data passed from the register function
+ * @see tethering_wifi_set_ssid_visibility_changed_cb()
+ * @see tethering_wifi_unset_ssid_visibility_changed_cb()
+ */
+typedef void (*tethering_wifi_ssid_visibility_changed_cb)(bool changed_visible, void *user_data);
+
+/**
+ * @brief Called when the passphrase of Wi-Fi tethering is changed
+ * @param[in] user_data The user data passed from the register function
+ * @see tethering_wifi_set_passphrase_changed_cb()
+ * @see tethering_wifi_unset_passphrase_changed_cb()
+ */
+typedef void (*tethering_wifi_passphrase_changed_cb)(void *user_data);
+
+/**
* @brief Creates the handle of tethering.
* @remarks The @a tethering must be released tethering_destroy() by you.
* @param[out] tethering A handle of a new mobile ap handle on success
int tethering_unset_connection_state_changed_cb(tethering_h tethering, tethering_type_e type);
/**
+ * @brief Registers the callback function called when the security type of Wi-Fi tethering is changed.
+ * @param[in] tethering The handle of tethering
+ * @param[in] callback The callback function to invoke
+ * @param[in] user_data The user data to be passed to the callback function
+ * @retval #TETHERING_ERROR_NONE Successful
+ * @retval #TETHERING_ERROR_INVALID_PARAMETER Invalid parameter
+ * @see tethering_wifi_unset_security_type_changed_cb()
+ */
+int tethering_wifi_set_security_type_changed_cb(tethering_h tethering, tethering_wifi_security_type_changed_cb callback, void *user_data);
+
+/**
+ * @brief Unregisters the callback function called when the security type of Wi-Fi tethering is changed.
+ * @param[in] tethering The handle of tethering
+ * @param[in] type The type of tethering
+ * @retval #TETHERING_ERROR_NONE Successful
+ * @retval #TETHERING_ERROR_INVALID_PARAMETER Invalid parameter
+ * @see tethering_wifi_set_security_type_changed_cb()
+ */
+int tethering_wifi_unset_security_type_changed_cb(tethering_h tethering);
+
+/**
+ * @brief Registers the callback function called when the visibility of SSID is changed.
+ * @param[in] tethering The handle of tethering
+ * @param[in] callback The callback function to invoke
+ * @param[in] user_data The user data to be passed to the callback function
+ * @retval #TETHERING_ERROR_NONE Successful
+ * @retval #TETHERING_ERROR_INVALID_PARAMETER Invalid parameter
+ * @see tethering_wifi_unset_ssid_visibility_changed_cb_cb()
+ */
+int tethering_wifi_set_ssid_visibility_changed_cb(tethering_h tethering, tethering_wifi_ssid_visibility_changed_cb callback, void *user_data);
+
+/**
+ * @brief Unregisters the callback function called when the visibility of SSID is changed.
+ * @param[in] tethering The handle of tethering
+ * @retval #TETHERING_ERROR_NONE Successful
+ * @retval #TETHERING_ERROR_INVALID_PARAMETER Invalid parameter
+ * @see tethering_wifi_set_ssid_visibility_changed_cb()
+ */
+int tethering_wifi_unset_ssid_visibility_changed_cb(tethering_h tethering);
+
+/**
+ * @brief Registers the callback function called when the passphrase of Wi-Fi tethering is changed.
+ * @param[in] tethering The handle of tethering
+ * @param[in] callback The callback function to invoke
+ * @param[in] user_data The user data to be passed to the callback function
+ * @retval #TETHERING_ERROR_NONE Successful
+ * @retval #TETHERING_ERROR_INVALID_PARAMETER Invalid parameter
+ * @see tethering_wifi_unset_passphrase_changed_cb()
+ */
+int tethering_wifi_set_passphrase_changed_cb(tethering_h tethering, tethering_wifi_passphrase_changed_cb callback, void *user_data);
+
+/**
+ * @brief Unregisters the callback function called when the passphrase of Wi-Fi tethering is changed.
+ * @param[in] tethering The handle of tethering
+ * @retval #TETHERING_ERROR_NONE Successful
+ * @retval #TETHERING_ERROR_INVALID_PARAMETER Invalid parameter
+ * @see tethering_wifi_set_passphrase_changed_cb()
+ */
+int tethering_wifi_unset_passphrase_changed_cb(tethering_h tethering);
+
+/**
* @}
*/