[Linux] 使用udev偵測device

• Rule syntax
  
  KERNEL - match against the kernel name for the device
  SUBSYSTEM - match against the subsystem of the device
  DRIVER - match against the name of the driver backing the device
  NAME - the name that shall be used for the device node
  SYMLINK - a list of symbolic links which act as alternative names for the device node
  RUN - Running external programs upon certain events
  ATTR - device attribue


• List attribute
  
  #udevinfo -a -p $(udevinfo -q path -n /dev/lp0)
      KERNEL=="lp0"
      SUBSYSTEM=="usb"
      DRIVER==""
      ATTR{dev}=="180:0"


• Reload config
  
  #udevadm control --reload-rules


• Example 
  
  KERNEL="sd*", ACTION=="add", SUBSYSTEMS=="scsi", RUN+="/bin/sh /tmp/test.sh"

Reference :
[1] Writing udev rules