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SubjectRe: Address spaces on a i386 - Getting Confused
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rgooch@atnf.csiro.au said:
> He should be able to allocate kernel pages and mmap() them to user
> space. Then he can DMA into the pages and wake up the user process
> when it's done.

That is how I do the driver for an image processing board we do. This
also works for Windows NT, if your pages are physically contiguous.
--
Steve Williams "The woods are lovely, dark and deep.
steve@icarus.com But I have promises to keep,
steve@picturel.com and lines to code before I sleep,
http://www.picturel.com And lines to code before I sleep."



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