Messages in this thread | | | From | Arnd Bergmann <> | Date | Fri, 9 Nov 2018 23:32:50 +0100 | Subject | Re: [PATCH anybus v3 0/6] Support HMS Profinet Card over Anybus |
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On Fri, Nov 9, 2018 at 10:47 PM Sven Van Asbroeck <thesven73@gmail.com> wrote: > > On Fri, Nov 9, 2018 at 4:22 PM Arnd Bergmann <arnd@arndb.de> 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?
Arnd
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