2 questions about MmMapIoSpace()

NTDEV
1

Hi everyone,

I know that MmMapIoSpace() allows me to map I/O ports to nonpaged memory,
but how will I access these ports then? Still using IN/OUT - how to address
them?

The second question is not very specific:
How would I map the “real mode” address 0000:0410 into my drivers portion of
kernel memory? Is it possible to read it without a view to the
\PhysicalMemory section?

Thanks in advance,

Oliver Schneider

2

The portio sample driver in the DDK show examples on how to use
MmMapIoSpace.

Ritesh N.

“Oliver Schneider” wrote in message
news:xxxxx@ntdev…
> Hi everyone,
>
> I know that MmMapIoSpace() allows me to map I/O ports to nonpaged memory,
> but how will I access these ports then? Still using IN/OUT - how to
address
> them?
>
> The second question is not very specific:
> How would I map the “real mode” address 0000:0410 into my drivers portion
of
> kernel memory? Is it possible to read it without a view to the
> \PhysicalMemory section?
>
> Thanks in advance,
>
> Oliver Schneider
>
>
>
>