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SubjectRe: [PATCH anybus v3 0/6] Support HMS Profinet Card over Anybus
On Fri, Nov 9, 2018 at 10:47 PM Sven Van Asbroeck <> wrote:
> On Fri, Nov 9, 2018 at 4:22 PM Arnd Bergmann <> wrote:
> >
> >
> > As usual, it comes down to the user space interfaces I think. Designing
> > a user interface is hard, most importantly because you cannot change it
> > once anyone starts relying on it, as opposed to implementation details
> > that you are free to change at any point.
> Thanks for the feedback !
> I will rework v4 so it uses a userspace interface shared with other
> fieldbus drivers - uio.

You mentioned this before, but I don't see how this would actually
work. Isn't uio just a slim wrapper for allowing user space access
to hardware registers while avoiding a kernel driver?


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