Index: /etc/udev/rules.d/80-sysconfig.rules
===================================================================
--- .orig/etc/udev/rules.d/80-sysconfig.rules
+++ /etc/udev/rules.d/80-sysconfig.rules
@@ -15,5 +15,6 @@ SUBSYSTEM=="pnp", ACTION=="add", RUN+="/
 SUBSYSTEM=="ide", ACTION=="add", RUN+="/sbin/hwup ide-devpath-%p -o hotplug"
 SUBSYSTEM=="input", KERNEL=="input[0-9]*", ACTION=="add", RUN+="/sbin/hwup input-devpath-%p -o hotplug"
 SUBSYSTEM=="platform", ACTION=="add", RUN+="/sbin/hwup platform-devpath-%p -o hotplug"
+SUBSYSTEM=="acpi", ACTION=="add", RUN+="/sbin/hwup acpi-devpath-%p -o hotplug"
 
 LABEL="sysconfig_end"
Index: /sbin/hwup
===================================================================
--- .orig/sbin/hwup
+++ /sbin/hwup
@@ -65,6 +65,7 @@ get_config_getcfg() {
 
 is_known_subsystem() {
 	case "$1" in
+		acpi)             return 0 ;;
 		ccw)              return 0 ;;
 		ccwgroup)         return 0 ;;
 		iucv)             return 0 ;;