Messages in this thread | | | Date | Tue, 11 Feb 2003 18:21:15 -0600 | From | David Frascone <> | Subject | Faking a memory map? |
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I'm trying to get an existing SDK (userland) for a PCI hardware device to work across a different propriatary bit-banged interface.
The original device driver just mmaped the PCI registers / address space into userland. (talk about lazy ;)
Anyway, the hardware I'm working with is *not* on the PCI bus, and therefore not memory-mappable. So, I'm stuck with a complex driver design (compared to the original), and rewriting the entire bottom of the SDK.
So, I thought: Is there a way to cheat? Would it be possible for me to *fake* the SDK out by memory mapping some RAM, and then reading / writing to the ram after bit-banging the device.
I looked into it some, but I couldn't figure out how to get notified when the region was read/written to (only when the page changed). So, is it possible to do the (admitedly ugly) hack I'm attempting?
Thanks in advance,
-Dave
-- David Frascone
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