--- trunk/udev/udev-cd-aliases-generator.rules.magellan	2008/03/22 18:06:28	512
+++ trunk/udev/udev-cd-aliases-generator.rules.magellan	2008/03/22 18:11:37	514
@@ -1,5 +1,22 @@
 # /etc/udev/rules/75-cd-aliases-generatory.rules:  device naming rules for udev
-# $Header: /root/magellan-cvs/src/udev/udev-cd-aliases-generator.rules.magellan,v 1.2 2008-03-22 18:06:06 niro Exp $
+# $Header: /root/magellan-cvs/src/udev/udev-cd-aliases-generator.rules.magellan,v 1.3 2008-03-22 18:11:37 niro Exp $
+#
+# There are a number of modifiers that are allowed to be used in some
+# of the different fields. They provide the following subsitutions:
+# %n - the "kernel number" of the device.
+#      For example, 'sda3' has a "kernel number" of '3'
+# %k - the kernel name for the device.
+# %M - the kernel major number for the device
+# %m - the kernel minor number for the device
+# %b - the bus id for the device
+# %c - the string returned by the PROGRAM. (Note, this doesn't work within
+#      the PROGRAM field for the obvious reason.)
+# %s{filename} - the content of a sysfs attribute.
+# %% - the '%' char itself.
+#
+# Try not to modify this file, if you wish to change things, create a new rule
+# file that can be run before this one.
+#
 
 # these rules generate rules for the /dev/{cdrom,dvd,...} symlinks