working in production - not entirely validated. parallel mode working.

LVX6048/etc/udev/rules.d/99-lvx6048.rules

@@ -1,6 +1,13 @@
 # LVX6048 (MPP Solar / Voltronic) USB-HID — dialout access only.
-# Logical unit identification is done via PI18 `ID` query at powermon startup
-# (see powermon.yaml: path: /dev/hidraw*, serial_number: <SN>).
-# No SYMLINK here — powermon resolves the right /dev/hidrawN by inverter serial,
-# which survives cable moves / hub port changes.
+# Logical unit identification is done via the lvx-resolve-links oneshot, which
+# reads each inverter's PI18 serial and writes /dev/lvx6048-{1,2} symlinks.
+# powermon services have Requires=lvx-resolve-links so they wait for it at boot.
 SUBSYSTEM=="hidraw", ATTRS{idVendor}=="0665", ATTRS{idProduct}=="5161", MODE="0660", GROUP="dialout"
+
+# Hot-plug recovery: when an inverter re-enumerates (e.g. after a power cycle),
+# hidraw indices can shuffle, leaving /dev/lvx6048-{1,2} symlinks pointing at
+# the wrong physical unit. Re-run the resolver and bounce the powermon services
+# so HA stops receiving crossed-up entity data. Fires only on add (avoid double
+# restart on disconnect+reconnect).
+SUBSYSTEM=="hidraw", ACTION=="add", ATTRS{idVendor}=="0665", ATTRS{idProduct}=="5161", \
+    RUN+="/bin/systemctl --no-block restart lvx-resolve-links.service powermon.service powermon2.service"