ISA Plug & Play support by Jaroslav Kysela <perex@suse.cz>
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Interface /proc/isapnp
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The interface has been removed. See pnp.txt for more details.
Interface /proc/bus/isapnp
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This directory allows access to ISA PnP cards and logical devices.
The regular files contain the contents of ISA PnP registers for
a logical device.