Messages in this thread | | | Date | Wed, 11 Jul 2007 14:27:05 +0530 | From | "Nobin Mathew" <> | Subject | Re: Reading a physical memory location |
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Thanks
On 7/11/07, Manu Abraham <abraham.manu@gmail.com> wrote: > On 7/11/07, Nobin Mathew <nobin.mathew@gmail.com> wrote: > > See this in the documentation > > > > The returned virtual address is a current CPU mapping for the memory > > address given. It is only valid to use this function on addresses that > > have a kernel mapping > > > > This function does not handle bus mappings for DMA transfers. In > > almost all conceivable cases a device driver should not be using this > > function > > > > To get a better idea, look here > http://tldp.org/LDP/khg/HyperNews/get/devices/addrxlate.html > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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