udev didn't find my cd-rw

[Shixin Zeng]

#dmesg|grep ^hd
hda: ST340810A, ATA DISK drive
hda: max request size: 128KiB
hda: 78165360 sectors (40020 MB) w/2048KiB Cache, CHS=65535/16/63, UDMA(100)
hdd: CD-RW IDE5224, ATAPI CD/DVD-ROM drive
#ls /proc/ide
drivers  hda@  hdd@  ide0/  ide1/  via
#ls /dev/hd*
/dev/hda   /dev/hda2  /dev/hda5  /dev/hda7
/dev/hda1  /dev/hda3  /dev/hda6  /dev/hda8

As shown above, no /dev/hdd was created by udev. How can I make my cd-rw 
work?

Thanks in advance.

-- 
Best regards
Shixin Zeng