Listing 2. /etc/devfsd.conf

# devfsd.conf
# compatibility for old device names
REGISTER .* MKOLDCOMPAT
UNREGISTER .* RMOLDCOMPAT
# module autoloading
LOOKUP .* MODLOAD
# device permissions
REGISTER ^cdroms/.* PERMISSIONS root.cdrom 0660
REGISTER ^pty/s.* PERMISSIONS root.tty 0600
REGISTER ^sound/.* PERMISSIONS root.audio 0660
REGISTER ^tts/.* PERMISSIONS root.dip 0660
# old style /dev/cdrom link
REGISTER ^cdroms/cdrom0$ CFUNCTION GLOBAL mksymlink
$devname cdrom
UNREGISTER ^cdroms/cdrom0$ CFUNCTION GLOBAL unlink cdrom