The baseline: you are doing a user mode application, you can only get down to BIOS IO registers with a helper driver like DirectIO
or similar (here I listed a few: http://km-dev.blogspot.com/2007/03/xpe-tip5-direct-io-operations-from.html).
Your best bet is a driver. Although even there it may not be that easy to access particular BIOS functions. Read DDK docs for more
info.
The baseline: you are doing a user mode application, you can only get down to BIOS IO registers with a helper driver like DirectIO
or similar (here I listed a few: http://km-dev.blogspot.com/2007/03/xpe-tip5-direct-io-operations-from.html).
Your best bet is a driver. Although even there it may not be that easy to access particular BIOS functions. Read DDK docs for more
info.
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