By default, udev creates the control node for pktcdvd at /dev/pktcdvd,
whereas with devfs it gets created at /dev/pktcdvd/control.

Also, the userspace tool looks for the control node at /dev/pktcdvd/control,
and isn't too happy when /dev/pktcdvd is there but not a directory.

This patch updates the rules file to take account of this.
I only updated the Gentoo rules, should others be updated too? 

diff -urNp udev-050/etc/udev/gentoo/udev.rules udev-dsd/etc/udev/gentoo/udev.rules
--- udev-050/etc/udev/gentoo/udev.rules	2004-12-18 05:53:07.000000000 +0000
+++ udev-dsd/etc/udev/gentoo/udev.rules	2005-01-07 15:33:43.476238128 +0000
@@ -94,6 +94,10 @@ KERNEL="tap*",		NAME="netlink/%k"
 # network devices
 KERNEL="tun",		NAME="net/%k"
 
+# packet writing
+# avoids conflict with userspace
+KERNEL="pktcdvd", NAME="%k/control"
+
 # pty devices
 KERNEL="pty[p-za-e][0-9a-f]*", NAME="pty/m%n", SYMLINK="%k"
 KERNEL="tty[p-za-e][0-9a-f]*", NAME="pty/s%n", SYMLINK="%k"