linux2.6.31版本以后usb/devices输出信息使用usb-devices查看

因工作需要，查看挂载在ubuntu13.04上的一款usb设备的Product和Vendor信息，发现cat /proc/bus/usb/devices文件不存在

后来发现在linux2.6.31以后的版本 相关信息要在usb-devices中查看

man usb-devices信息截取

usb-devices(1)                                                           Linux USB Utilities                                                           usb-devices(1)


NAME
       usb-devices - print USB device details


SYNOPSIS
       usb-devices


DESCRIPTION
       usb-devices is a (bash) shell script that can be used to display details of USB buses in the system and the devices connected to them.

...

       /proc/bus/usb/devices
              Location where the usb/devices file can normally be found for Linux kernels before 2.6.31, if usbfs is mounted.

输出信息：

T:  Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 13 Spd=12  MxCh= 0
D:  Ver= 0.20 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=23d8 ProdID=0285 Rev=01.00
S:  Manufacturer=CREATOR(CHINA)TECH CO.,LTD
S:  Product=CRT-285
S:  SerialNumber=S130622000
C:  #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=400mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid