Method _cache_interface_networks

wifi_manager.py:203–211

Cache scan results per interface while preserving legacy attributes.

(self, interface, networks)

            is 2.4 GHz only.

        The payoff is that the AP never has to come down: hostapd keeps the
        built-in radio while the dongle joins, scans and roams independently.
        On a single-radio box this returns the same interface as the AP, and
        behaviour is unchanged.
        """
        # Cached briefly: this is consulted on every connection check, and the
        # underlying lookup shells out to nmcli.
        now = time.time()
        if self._client_iface_cache and (now - self._client_iface_cache_ts) < 10.0:
            return self._client_iface_cache
        iface = self._find_secondary_wifi_interface() or self.default_wifi_interface
        self._client_iface_cache = iface