Messages in this thread | | | Date | Fri, 20 Mar 2009 13:32:44 -0700 (PDT) | From | david@lang ... | Subject | Re: The Linux Staging tree, what it is and is not. |
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On Fri, 20 Mar 2009, Alan Cox wrote:
>> information of what to copy to where comes from the object dictionary. >> But it is possible to extract this information from the objdict and pass >> it via generic structures (e.g. something like IO vectors) to the PDO >> module in kernel. The information flow of the configuration data is >> one-way only, from userspace to kernel. This is what I plan to implement >> in openPOWERLINK, because the copy information can also be passed to a >> special hardware like a DMA controller. > > Ok so your hardware in fact really is oriented around an mmap type > interface ?
what I understand from this thread is that the hardware is a standard ethernet card.
David Lang
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