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From: Arnd Bergmann <arnd@arndb.de>
To: Sven Van Asbroeck <thesven73@gmail.com>
Cc: svendev@arcx.com, Rob Herring <robh@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	DTML <devicetree@vger.kernel.org>
Subject: Re: [PATCH anybus v3 0/6] Support HMS Profinet Card over Anybus
Date: Fri, 9 Nov 2018 23:32:50 +0100	[thread overview]
Message-ID: <CAK8P3a1zME8G0FjqLaL65F6yYOEuPLJLNs6Mdve7YF=Q2BpU5w@mail.gmail.com> (raw)
In-Reply-To: <CAGngYiWtmHPShpbLOj4qYJCe6PvNT7ZUDd-0jRsRyxD+HWbByQ@mail.gmail.com>

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

      reply	other threads:[~2018-11-09 22:33 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-04 15:54 [PATCH anybus v3 0/6] Support HMS Profinet Card over Anybus thesven73
2018-11-04 15:54 ` [PATCH anybus v3 1/6] misc: support the Arcx anybus bridge thesven73
2018-11-05 21:20   ` Rob Herring
2018-11-05 21:50     ` Sven Van Asbroeck
2018-11-06 13:58       ` Rob Herring
2018-11-06 14:45         ` Sven Van Asbroeck
2018-11-06 18:30           ` Rob Herring
2018-11-06 20:05             ` Sven Van Asbroeck
2018-11-08 13:40               ` Arnd Bergmann
2018-11-04 15:54 ` [PATCH anybus v3 2/6] dt-bindings: Add vendor prefix for arcx / Archronix thesven73
2018-11-04 15:57   ` Andreas Färber
2018-11-05 20:44   ` Rob Herring
2018-11-04 15:54 ` [PATCH anybus v3 3/6] dt-bindings: anybus-bridge: document devicetree binding thesven73
2018-11-05 20:45   ` Rob Herring
2018-11-04 15:54 ` [PATCH anybus v3 4/6] bus: support HMS Anybus-S bus thesven73
2018-11-08 14:07   ` Arnd Bergmann
2018-11-08 15:47     ` Sven Van Asbroeck
2018-11-08 16:54       ` Arnd Bergmann
2018-11-09 16:25     ` Sven Van Asbroeck
2018-11-09 21:03       ` Arnd Bergmann
2018-11-10 10:55         ` Geert Uytterhoeven
2018-11-12 16:23     ` Sven Van Asbroeck
2018-11-04 15:55 ` [PATCH anybus v3 5/6] dt-bindings: anybuss-host: document devicetree binding thesven73
2018-11-08 14:11   ` Arnd Bergmann
2018-11-08 14:21     ` Sven Van Asbroeck
2018-11-08 14:27       ` Arnd Bergmann
2018-11-12 18:05         ` Sven Van Asbroeck
2018-11-04 15:55 ` [PATCH anybus v3 6/6] misc: support HMS Profinet IRT industrial controller thesven73
2018-11-08 14:20   ` Arnd Bergmann
2018-11-08 15:35     ` Sven Van Asbroeck
2018-11-08 16:52       ` Arnd Bergmann
2018-11-09 16:02 ` [PATCH anybus v3 0/6] Support HMS Profinet Card over Anybus Sven Van Asbroeck
2018-11-09 21:22   ` Arnd Bergmann
2018-11-09 21:46     ` Sven Van Asbroeck
2018-11-09 22:32       ` Arnd Bergmann [this message]

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