Am Dienstag, 11. Dezember 2001 10:10 schrieb Adam J. Richter:
> >Bad patch. The devrequest struct needs to be in DMAable memory, and the
> >kernels stack isn't DMAable on all arches.
> >
> >usb-storage is broken that way... it's on my TODO list, too...
> >
> >Matt
>
> Thanks for catching this so quickly.
>
> I consequently have a bunch of questions for anyone kind enough
> to answer them.
>
> 1. All USB host controller drivers are currently PCI
> drivers. I do not know non-PCI ohci or uhci conformant
> controllers are even possible. Am I correct in understanding
There are parts of drivers for controllers on embedded CPUs already in the
kernel. They are not PCI. What they can do DMA on, I don't know.
HTH
Oliver
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