Messages in this thread | | | Subject | Re: DMA to user space | Date | Fri, 17 Mar 2000 02:06:02 +0000 (GMT) | From | Alan Cox <> |
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> "impossible" values some of the time) by using a driver-owned buffer which > the user job mmaps into a window. But I consider that a kludge. I'm a big > fan of doing what I actually *mean* whenever possible, rather than living
Its the right way for 2.2
> a single 32-bit address space so kernel mode gets the low end and user space > gets the rest? Or would I have to fiddle with the user's page table directly?
For 2.3.x take a look at the raw I/O stuff Stephen Tweedie added, the core stuff is there
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