From: "Enrico Weigelt, metux IT consult" <lkml@metux.net>
To: Sven Van Asbroeck <thesven73@gmail.com>
Cc: "Rob Herring" <robh+dt@kernel.org>,
"Linus Walleij" <linus.walleij@linaro.org>,
"Lee Jones" <lee.jones@linaro.org>,
mark.rutland@arm.com, "Andreas Färber" <afaerber@suse.de>,
treding@nvidia.com, "David Lechner" <david@lechnology.com>,
noralf@tronnes.org, johan@kernel.org,
"Michal Simek" <monstr@monstr.eu>,
michal.vokac@ysoft.com, "Arnd Bergmann" <arnd@arndb.de>,
"Greg KH" <gregkh@linuxfoundation.org>,
john.garry@huawei.com, geert+renesas@glider.be,
robin.murphy@arm.com,
"Paul Gortmaker" <paul.gortmaker@windriver.com>,
sebastien.bourdelin@savoirfairelinux.com, icenowy@aosc.io,
"Stuart Yoder" <stuyoder@gmail.com>,
"J. Kiszka" <jan.kiszka@siemens.com>,
maxime.ripard@bootlin.com,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
netdev <netdev@vger.kernel.org>
Subject: Re: [PATCH v10 0/7] Add Fieldbus subsystem + support HMS Profinet card
Date: Tue, 16 Apr 2019 18:49:35 +0200 [thread overview]
Message-ID: <c1831703-a476-8870-0a5f-9060bda0f669@metux.net> (raw)
In-Reply-To: <CAGngYiUTHZFFY=H7xXHzZnN4pS0jAqWBTrcw04hjf5S-ykxC9w@mail.gmail.com>
On 15.04.19 20:31, Sven Van Asbroeck wrote:
Hi,
>> Maybe it would be better calling it "IEC-61158" instead of "fieldbus" ?>>> > Yes, we are certainly open to that, if it is more correct and/or
better> accepted by users.
Thanks, I'd really appreciate that :)
Maybe I'm a bit beaurocratic here, but I really believe that precise
naming is important, eg. for avoiding potential conflicts w/ different
fieldbus classes (eg. mvb) that might come in the future.
> Yes. You can open as many handles to the device as you like,
> they will all share the fieldbus memory. When the remote
> fieldbus memory changes, that event will be broadcast to
> all open handles, via poll/select.
Great. When I read your first mail, I got reminded on the old legacy
canbus chardevs (before cansocket came in) that was single-user only.
By the way: any special reason for doing this via device instead of
socket (like we have w/ can) ?
I'm, personally, pretty undecided which way is better. Device nodes give
us easy access control via fs permissions, while socket allows
firewalling.
--mtx
--
Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
info@metux.net -- +49-151-27565287
next prev parent reply other threads:[~2019-04-16 16:51 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-09 14:42 [PATCH v10 0/7] Add Fieldbus subsystem + support HMS Profinet card Sven Van Asbroeck
2019-04-09 14:42 ` [PATCH v10 1/7] fieldbus_dev: add Fieldbus Device subsystem Sven Van Asbroeck
2019-04-16 11:13 ` Greg KH
2019-04-09 14:42 ` [PATCH v10 2/7] anybus-s: support HMS Anybus-S bus Sven Van Asbroeck
2019-04-09 14:42 ` [PATCH v10 3/7] anybus-s: support the Arcx anybus controller Sven Van Asbroeck
2019-04-09 14:42 ` [PATCH v10 4/7] dt-bindings: anybus-controller: document devicetree binding Sven Van Asbroeck
2019-04-09 15:50 ` Rob Herring
2019-04-09 17:16 ` Sven Van Asbroeck
2019-04-09 17:31 ` Sven Van Asbroeck
2019-04-09 21:09 ` Rob Herring
2019-04-10 13:11 ` Sven Van Asbroeck
2019-04-16 11:11 ` Greg KH
2019-04-09 14:42 ` [PATCH v10 5/7] dt-bindings: Add vendor prefix for arcx / Archronix Sven Van Asbroeck
2019-04-09 14:42 ` [PATCH v10 6/7] fieldbus_dev: support HMS Profinet IRT industrial controller Sven Van Asbroeck
2019-04-09 14:42 ` [PATCH v10 7/7] staging: fieldbus_dev: add TODO Sven Van Asbroeck
2019-04-15 17:41 ` [PATCH v10 0/7] Add Fieldbus subsystem + support HMS Profinet card Enrico Weigelt, metux IT consult
2019-04-15 18:31 ` Sven Van Asbroeck
2019-04-16 16:49 ` Enrico Weigelt, metux IT consult [this message]
2019-04-16 18:56 ` Sven Van Asbroeck
2019-04-16 21:18 ` Enrico Weigelt, metux IT consult
2019-04-16 21:49 ` Sven Van Asbroeck
2019-04-16 22:12 ` Sven Van Asbroeck
2019-04-18 8:32 ` Enrico Weigelt, metux IT consult
2019-04-18 17:34 ` Sven Van Asbroeck
2019-04-24 9:40 ` Enrico Weigelt, metux IT consult
2019-04-24 10:26 ` Oliver Hartkopp
2019-04-24 11:00 ` Andreas Färber
2019-04-24 11:48 ` Oliver Hartkopp
2019-04-24 15:10 ` Sven Van Asbroeck
2019-04-29 13:54 ` Enrico Weigelt, metux IT consult
2019-04-17 14:37 ` Sven Van Asbroeck
2019-04-17 17:04 ` Andreas Färber
2019-04-17 20:13 ` Enrico Weigelt, metux IT consult
2019-04-25 8:26 ` Lee Jones
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