原文地址：http://hi.baidu.com/rhca/blog/item/2a00481613146e4321a4e95f.html

root@ubuntu-T61:~# udevadm info -q path -n /dev/sda
/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda
root@ubuntu-T61:~# udevadm info -q path -n /dev/sda1
/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda1
root@ubuntu-T61:~#

注： udevadm 后面的路径参数必须为绝对参数

Writing udev rules

by Daniel Drake (dsd)
Version 0.74

The most recent version of this document can always be found at:
http://www.reactivated.net/writing_udev_rules.html

Contents

• Introduction
  • About this document
  • History
• The concepts
  • Terminology: devfs, sysfs, nodes, etc.
  • Why?
  • Built-in persistent naming schemes
• Rule writing
  • Rule files and semantics
  • Rule syntax
  • Basic rules
  • Matching sysfs attributes
  • Device hierarchy
  • String substitutions
  • String matching
• Finding suitable information from sysfs
  • The sysfs tree
  • udevinfo
  • Alternative methods
• Advanced topics
  • Controlling permissions and ownership
  • Using external programs to name devices
  • Running external programs on certain events
  • Environment interaction
  • Additional options
• Examples
  • USB Printer
  • USB Camera
  • USB Hard Disk
  • USB Card Reader
  • USB Palm Pilot
  • CD/DVD drives
  • Network interfaces
• Testing and debugging
  • Putting your rules into action
  • udevtest
• Author and contact

Introduction

About this document

最后

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