linux/Documentation/isapnp.txt
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   2ISA Plug & Play support by Jaroslav Kysela <perex@suse.cz>
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   4
   5Interface /proc/isapnp
   6======================
   7
   8The interface has been removed. See pnp.txt for more details.
   9
  10Interface /proc/bus/isapnp
  11==========================
  12
  13This directory allows access to ISA PnP cards and logical devices.
  14The regular files contain the contents of ISA PnP registers for
  15a logical device.
  16