- Don't try and keep track of the previous state, since the kernel may   change it w/out informing the program.  Instead, use the (now available)   previous state returned by the kernel to make intelligent card   removal/insertion decisions.
- Don't try and keep track of the previous state, since the kernel may
  change it w/out informing the program.  Instead, use the (now available)
  previous state returned by the kernel to make intelligent card
  removal/insertion decisions.

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