USB CDROM 问题

hfzdh

机器挂载一个USB CDROM, 在/dev 下已经有设备名称, 但在/proc/sys/dev/cdrom/info 里没有相应的设备名称, 有谁知道需要安装什么包吗?
# ls /dev/sr0    ---->sr0 即是USB CDROM的设备名称
/dev/sr0

# cat /proc/sys/dev/cdrom/info  
CD-ROM information, Id: cdrom.c 3.20 2003/12/17

drive name:       
drive speed:       
drive # of slots:
Can close tray:       
Can open tray:       
Can lock tray:       
Can change speed:
Can select disk:
Can read multisession:
Can read MCN:       
Reports media changed:
Can play audio:       
Can write CD-R:       
Can write CD-RW:
Can read DVD:       
Can write DVD-R:
Can write DVD-RAM:
Can read MRW:       
Can write MRW:       
Can write RAM: