1 files changed, 7 insertions, 1 deletions
diff --git a/uinput_mng b/uinput_mng
index b2e9a7a..2abdbbf 100755
--- a/uinput_mng
+++ b/uinput_mng
@@ -229,9 +229,15 @@ class PhysDevices(dict):
     def upload_effect(self, effect):
         # upload the effect to all currently tracked devices
         for name, d in self.items():
+            # is this a new effect or a change of an existing one
+            try:
+                upload_id = self._ff_effect_idmap[name][effect.id]
+            except LookupError:
+                upload_id = -1
+
             effect_d    = ff.Effect(type = effect.type, direction = effect.direction,
                                     ff_trigger = effect.ff_trigger,
-                                    ff_replay = effect.ff_replay, u = effect.u, id = -1)
+                                    ff_replay = effect.ff_replay, u = effect.u, id = upload_id)
 
             did = d.upload_effect(effect_d)
             self._ff_effect_idmap[name][effect.id] = did