From: Kent Gibson <warthog618@gmail.com>
To: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: "Gunnar Thörnqvist" <gunnar@igl.se>,
"Linus Walleij" <linus.walleij@linaro.org>,
linux-gpio@vger.kernel.org,
"Bartosz Golaszewski" <bartosz.golaszewski@linaro.org>
Subject: Re: [libgpiod][PATCH 2/2] tools: allow longer time periods
Date: Wed, 10 Apr 2024 07:37:47 +0800 [thread overview]
Message-ID: <20240409233747.GB3000@rigel> (raw)
In-Reply-To: <CAMRc=Md3U=sEypUOSzSiWwQasOxqLn1LGCCHE2fUU5ohnCkKqg@mail.gmail.com>
On Tue, Apr 09, 2024 at 07:24:43PM +0200, Bartosz Golaszewski wrote:
> On Tue, Apr 9, 2024 at 6:05 PM Kent Gibson <warthog618@gmail.com> wrote:
> >
> > On Tue, Apr 09, 2024 at 04:58:52PM +0200, Gunnar Thörnqvist wrote:
> > > Hi, Got a use case where a hold period is measured in more than seconds?
> > > Specifically for a get.:::
> > >
> > > I can see a large number of use cases where the time can be hours, days and
> > > weeks. In my case, pin 17 controls a relay that heats water when electricity
> > > is cheapest. It is ok to only have seconds as unit but the range must be
> > > larger. /Gunnar
> > >
> >
> > I was asking specifically about the case for gpioget, where a long hold
> > period makes absolutely no sense.
> >
>
> One could argue that this option doesn't make sense at all for gpioget. :)
>
And one would be wrong. The point of the hold period for gets is to
allow the line to settle after a config change before the get itself is
performed.
> I don't think it hurts to support a longer period of time even if only
> for code reuse and less surface for bugs.
>
Well that is a complicated bit of code.
Cheers,
Kent.
next prev parent reply other threads:[~2024-04-09 23:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-09 9:33 [libgpiod][PATCH 0/2] gpio-tools: allow specifying longer time periods Bartosz Golaszewski
2024-04-09 9:33 ` [libgpiod][PATCH 1/2] build: fix configure error messages on missing functions Bartosz Golaszewski
2024-04-10 7:47 ` Bartosz Golaszewski
2024-04-09 9:33 ` [libgpiod][PATCH 2/2] tools: allow longer time periods Bartosz Golaszewski
2024-04-09 12:55 ` Kent Gibson
2024-04-09 15:59 ` Bartosz Golaszewski
2024-04-09 23:32 ` Kent Gibson
[not found] ` <3f31c7bc-de8a-4552-ba48-4432b335f413@igl.se>
2024-04-09 16:05 ` Kent Gibson
2024-04-09 17:24 ` Bartosz Golaszewski
2024-04-09 23:37 ` Kent Gibson [this message]
2024-04-10 7:53 ` Bartosz Golaszewski
2024-04-10 10:19 ` Kent Gibson
2024-04-09 23:52 ` Kent Gibson
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