Lets ask a different question: why do you think this
particular functionality is needed at all? Have you encountered any
problems which require it (I haven't, btw)?
Windows drivers do a lot of things, but it does not mean all of them must
be copied literally.
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I would image using this to verify that stick is still in place on I/O
error.
If I just power down/up it, it will loose state, for example IO mode,
reg range, etc...
But anyway, this isn't very important.
Best regards,
Maxim Levitsky
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