我有一个usb大容量存储器，今天我插入usb端口，usb无法打开，我使用＆＃34; dmesg＆＃34;看信息
adan@adan-Latitude-D630:~$ dmesg | tail
[ 409.001220] composite sync not supported
[ 616.340074] usb 2-1: new high-speed USB device number 5 using ehci-pci
[ 617.392967] usb 2-1: New USB device found, idVendor=090c, idProduct=3000
[ 617.392979] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 617.392987] usb 2-1: Product: SM3255AA MEMORY BAR
[ 617.392994] usb 2-1: Manufacturer: Silicon Motion,Inc.
[ 617.393558] scsi5 : usb-storage 2-1:1.0
[ 618.393265] scsi 5:0:0:0: Direct-Access USB MEMORY BAR 1000 PQ: 0 ANSI: 0 CCS
[ 618.397967] sd 5:0:0:0: Attached scsi generic sg2 type 0
[ 618.399479] sd 5:0:0:0: [sdb] Attached SCSI removable disk
在Windows上，usb海量存储被检测为USB磁盘驱动器，也无法在文件浏览器中打开usb。 我的USB有什么问题？怎么解决？谢谢。