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From: Pavel Machek <pavel@ucw.cz>
To: Baolin Wang <baolin.wang@linaro.org>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Mark Brown <broonie@kernel.org>,
	Linux LED Subsystem <linux-leds@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 1/2] leds: core: Introduce generic pattern interface
Date: Sat, 14 Jul 2018 23:20:33 +0200	[thread overview]
Message-ID: <20180714212033.GA31950@amd> (raw)
In-Reply-To: <CAMz4kuKZ6Z1h=yzFYJihEH1ARC5FKtDC6RLz0u8SmaekOZ=utw@mail.gmail.com>

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Hi!

> > It also drew my attention to the issue of desired pattern sysfs
> > interface semantics on uninitialized pattern. In your implementation
> > user seems to be unable to determine if the pattern is activated
> > or not. We should define the semantics for this use case and
> > describe it in the documentation. Possibly pattern could
> > return alone new line character then.

Let me take a step back: we have triggers.. like LED blinking.

How is that going to interact with patterns? We probably want the
patterns to be ignored in that case...?

Which suggest to me that we should treat patterns as a trigger. I
believe we do something similar with blinking already.

Then it is easy to determine if pattern is active, and pattern
vs. trigger issue is solved automatically.

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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  parent reply	other threads:[~2018-07-14 21:22 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-29  5:03 [PATCH v3 1/2] leds: core: Introduce generic pattern interface Baolin Wang
2018-06-29  5:03 ` [PATCH v3 2/2] leds: sc27xx: Add pattern_set/get/clear interfaces for LED controller Baolin Wang
2018-07-11 11:02 ` [PATCH v3 1/2] leds: core: Introduce generic pattern interface Baolin Wang
2018-07-11 21:10   ` Jacek Anaszewski
2018-07-12 12:24     ` Baolin Wang
2018-07-12 21:41       ` Jacek Anaszewski
2018-07-13  1:58         ` Baolin Wang
2018-07-14 21:20       ` Pavel Machek [this message]
2018-07-14 22:02         ` Jacek Anaszewski
2018-07-14 22:29           ` Pavel Machek
2018-07-14 22:39             ` Pavel Machek
2018-07-15 12:22               ` Jacek Anaszewski
2018-07-16  1:00                 ` David Lechner
2018-07-16 20:29                   ` Jacek Anaszewski
2018-07-16 21:56                     ` Pavel Machek
2018-07-17 20:26                       ` Jacek Anaszewski
2018-07-17 21:07                         ` Pavel Machek
2018-07-24  0:35                       ` Bjorn Andersson
2018-07-18  7:56                     ` Pavel Machek
2018-07-18 11:32                       ` Baolin Wang
2018-07-18 12:08                         ` Pavel Machek
2018-07-18 17:00                           ` David Lechner
2018-07-20 19:11                             ` Jacek Anaszewski
2018-07-24  0:55                               ` Bjorn Andersson
2018-07-18 18:54                       ` Jacek Anaszewski
2018-07-18 19:22                         ` Jacek Anaszewski
2018-07-18 22:13                           ` David Lechner
2018-07-18 22:17                           ` Pavel Machek
2018-07-19 20:20                             ` Pavel Machek
2018-07-20 18:08                               ` Jacek Anaszewski
2018-07-23  6:59                               ` Baolin Wang
2018-07-24 11:41                                 ` Pavel Machek
2018-07-27  5:15                                   ` Baolin Wang
2018-07-27  8:36                                     ` Pavel Machek
2018-07-27  8:41                                       ` Baolin Wang
2018-07-24 11:50                                 ` Pavel Machek
2018-07-24  0:18                   ` Bjorn Andersson
2018-07-16 11:08                 ` Baolin Wang

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