linux-kernel - Re: [PATCH v3 1/2] leds: core: Introduce generic pattern interface

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Message-ID: <20180718075637.GA10279@amd>
Date:   Wed, 18 Jul 2018 09:56:37 +0200
From:   Pavel Machek <pavel@....cz>
To:     Jacek Anaszewski <jacek.anaszewski@...il.com>
Cc:     David Lechner <david@...hnology.com>,
        Baolin Wang <baolin.wang@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Linux LED Subsystem <linux-leds@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 1/2] leds: core: Introduce generic pattern interface

Hi!

> >>>>I believe I meant "changing patterns from kernel in response to events
> >>>>is probably overkill"... or something like that.
> >>>
> >>>Anyway -- to clean up the confusion -- I'd like to see
> >>>
> >>>echo pattern > trigger
> >>>echo "1 2 3 4 5 6 7 8" > somewhere
> >>
> >>s/somewhere/pattern/
> >>
> >>pattern trigger should create "pattern" file similarly how ledtrig-timer
> >>creates delay_{on|off} files.

Yes, that sounds reasonable. v5 still says

+               Writing non-empty string to this file will activate the pattern,
+               and empty string will disable the pattern.

I'd deactivate the pattern by simply writing something else to the
trigger file.

Best regards,

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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