> to native drivers... For some hardware it may not make a difference
> (for example, a scanner). But for other hardware (such as a gigabit
> ethernet board), my guess is that UDI will be a disaster as far as
> performance is concerned.
UDI has no concept of other interface libraries or access API's - so
it lacks stuff like check_region that is central to the Linux philosophy.
UDI on Linux would also be useless for parallel scanners - UDI can't
describe talking to the parport management layer
Exactly. So you'd have to do an extra memory copy in the Linux<->UDI
interface layer. It'll be slow, but you an make it work. See my
previous comments about UDI always being a poor second cousin to real
native drivers.....
- Ted
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