Messages in this thread | | | Subject | Re: Address spaces on a i386 - Getting Confused | Date | Fri, 02 Apr 1999 11:35:37 -0800 | From | Stephen Williams <> |
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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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