-# use the /sys/subsystem path for this. Current vanilla kernels don't
-# actually support that hierarchy right now, however upcoming kernels
-# will. HAL and udev internally support /sys/subsystem already, hence
-# it should be safe to use this here, too. This is mostly just an
-# identification string for systemd, so whether the path actually is
+# use the /sys/subsystem/ path for this. Kernel "bus" and "class" names
+# should be treated as one namespace, like udev handles it. This is mostly
+# just an identification string for systemd, so whether the path actually is