Fix WIRELESS_DEVICE_STATUS reconfiguration: push settings and ack with proper cookie

When a device sends WIRELESS_DEVICE_STATUS with config_needed=1, the host
should re-push settings and acknowledge via ConfigChange SetComplete. The
existing code relied on the push flag in changed(), but operator precedence
caused push=True to be ignored for devices that have the WIRELESS_DEVICE_STATUS
feature — the exact devices that send this notification.

Handle the reconfiguration entirely in the notification handler: explicitly
push settings and ack, rather than trying to overload the changed() condition.

Also replace hardcoded cookie 0x11 with proper GetCookie/SetComplete protocol:
read the device's current configuration cookie and echo it back, per the
ConfigChange (0x0020) specification.

lib/logitech_receiver/device.py

@@ -437,6 +437,11 @@ class Device:
         if self.online and self.protocol >= 2.0:
             _hidpp20.config_change(self, configuration_, no_reply=no_reply)
 
+    def signal_configuration_complete(self):
+        """Read the device's config cookie and echo it back via SetComplete to ack end of configuration."""
+        if self.online and self.protocol >= 2.0:
+            _hidpp20.set_configuration_complete(self)
+
     def reset(self, no_reply=False):
         self.set_configuration(0, no_reply)
 
@@ -541,7 +546,7 @@ class Device:
                     if self.protocol < 2.0:  # Make sure to set notification flags on the device
                         self.notification_flags = self.enable_connection_notifications()
                     else:
-                        self.set_configuration(0x11)  # signal end of configuration
+                        self.signal_configuration_complete()
                     self.read_battery()  # battery information may have changed so try to read it now
             elif was_active and self.receiver and not isinstance(self.receiver, CenturionReceiver):
                 hidpp10.set_configuration_pending_flags(self.receiver, 0xFF)

lib/logitech_receiver/hidpp20.py

@@ -2051,7 +2051,26 @@ class Hidpp20:
             return struct.unpack("!B", result[:1])[0]
         return None
 
+    def get_configuration_cookie(self, device: Device):
+        """ConfigChange (0x0020) GetCookie — read the device's current configuration cookie."""
+        response = device.feature_request(SupportedFeature.CONFIG_CHANGE, 0x00)
+        return response[:2] if response else None
+
+    def set_configuration_complete(self, device: Device, cookie=None, no_reply=False):
+        """ConfigChange (0x0020) SetComplete — acknowledge host has synced with device configuration.
+
+        If cookie is None, reads the current cookie and increments it to mark
+        a new sync point, so future cookie changes indicate device-side drift."""
+        if cookie is None:
+            cookie = self.get_configuration_cookie(device)
+            if cookie and len(cookie) >= 2:
+                value = (cookie[0] << 8 | cookie[1]) + 1 & 0xFFFF
+                cookie = bytes([value >> 8, value & 0xFF])
+        if cookie and len(cookie) >= 2:
+            return device.feature_request(SupportedFeature.CONFIG_CHANGE, 0x10, cookie[0], cookie[1], no_reply=no_reply)
+
     def config_change(self, device: Device, configuration, no_reply=False):
+        """Deprecated — use set_configuration_complete() instead."""
         return device.feature_request(SupportedFeature.CONFIG_CHANGE, 0x10, configuration, no_reply=no_reply)
 
 

lib/logitech_receiver/notifications.py

@@ -34,6 +34,7 @@ from . import diversion
 from . import hidpp10
 from . import hidpp10_constants
 from . import hidpp20
+from . import settings
 from . import settings_templates
 from .common import Alert
 from .common import BatteryStatus
@@ -324,7 +325,9 @@ def _process_feature_notification(device: Device, notification: HIDPPNotificatio
             reason = "powered on" if notification.data[2] == 1 else None
             if notification.data[1] == 1:  # device is asking for software reconfiguration so need to change status
                 alert = Alert.NONE
-                device.changed(active=True, alert=alert, reason=reason, push=True)
+                device.changed(active=True, alert=alert, reason=reason)
+                settings.apply_all_settings(device)
+                device.signal_configuration_complete()
         else:
             logger.warning("%s: unknown WIRELESS %s", device, notification)