diff --git a/examples/mdev_fat.conf b/examples/mdev_fat.conf
index df329b4..d67912b 100644
--- a/examples/mdev_fat.conf
+++ b/examples/mdev_fat.conf
@@ -7,10 +7,14 @@
 # instead of the default 0:0 660.
 #
 # Syntax:
-# [-]devicename_regex user:group mode [>|=path] [@|$|*cmd args...]
+# [-]devicename_regex user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]
+# [-]$ENVVAR=regex    user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]
+# [-]@maj,min[-min2]  user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]
 #
+# [-]: do not stop on this match, continue reading mdev.conf
 # =: move, >: move and create a symlink
-# @|$|*: run $cmd on delete, @cmd on create, *cmd on both
+# !: do not create device node
+# @|$|*: run cmd if $ACTION=remove, @cmd if $ACTION=add, *cmd in all cases
 
 # support module loading on hotplug
 $MODALIAS=.*	root:root 660 @modprobe "$MODALIAS"