Erm,
The superio sensor drivers only poke the superio chip registers without request
region during the probe phase, iow they try to detect the chip, using a widely
document and standardized (part of isa pnp AFAIK) procedure on standardized ports.
Let me try to explain a bit about superio chips, they have 2 superio control
registers (an index and data register) with which things like a manufacturer
and device id can be read, besides these id registers they also have a set of
registers with config for different logical devices. Once the id is matched,
the driver knows which logical device config to read, reads a (different) isa
base address + range from the logical device config, and then does a
request_region on the region actually used by the logical device.
The superio control registers are thus a sort of pci configuration space if you
want, doing a request_region on these is not such a good idea, as multiple
drivers (for different logical devices within the superio device) may use
these, so trying to gain exclusive access will lead to troubles.
I hope with this info about the problem space, that you maybe have a suggestion
on howto fix this?
Regards,
Hans
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