The Solution

• Allow drivers to create device nodes themselves
  • Removes device number indirection
  • Can ignore device numbers and use device instance structures
  • Effectively increases device number space
  • Hot-plug support comes free
  • Easy and natural scanning of devices
• Provide a structured name-space
• Provide multiple name-spaces, exposing:
  • True physical location of devices (vapourware)
  • Driver topology (partly exposes physical location)
  • Classification by device types
  • Consistent references to roaming devices (vapourware)
  • We need them all