Re: [PATCH v10 0/7] Add Fieldbus subsystem + support HMS Profinet card

[Sven Van Asbroeck]

Hi Enrico,

On Thu, Apr 18, 2019 at 4:34 AM Enrico Weigelt, metux IT consult
<lkml@xxxxxxxxx> wrote:
>
> On 17.04.19 00:12, Sven Van Asbroeck wrote:
>
> > PS do you have a specific fieldbus device in mind which could be added
> > to Linux?
>
> I actually had some Duagon MVB controllers (Ionia) in the pipeline.
> That's stalled for quite some time, as my customer doesn't need the
> MVB communication yet, for now just the machine as generic Linux host
> w/ ADCs+DIOs.
>

If you have a fieldbus device you want to add to mainline Linux, and
you wish to piggy-back onto the fieldbus_dev subsystem, then we can
discuss fieldbus API changes/additions/improvements during the
patch review stage.

It's my experience that good userspace APIs evolve from practical
requirements, not top-down theoretical design. The staging/ location
allows us to take an evolutionary approach.

Sven