From: Pavel Machek <pavel@ucw.cz>
To: Oleh Kravchenko <oleg@kaa.org.ua>
Cc: linux-leds@vger.kernel.org
Subject: Re: [PATCH] leds: add LED driver for CR0014114 board
Date: Thu, 28 Sep 2017 17:24:37 +0200 [thread overview]
Message-ID: <20170928152437.GB2482@amd> (raw)
In-Reply-To: <026d9ec2-f2bd-18b9-d5fa-f593d40e2f57@kaa.org.ua>
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Hi!
> > Ok, makes sense. How does the board look?
>
> Did you mean a photo? Sure http://i.imgur.com/OShLIJx.jpg
Thanks.
> >> The delay between data sends to SPI board should be at least 10 ms
> >> I think it will be bad idea to use shared workqueue from kernel,
> >> so I create separate single threaded work queue :)
> >
> > If workqueue support in led core can not take 10 msec wait, we should
> > fix it, not add hacks around...
>
> Could you please explain or give a example?
> Because it's not clear for me, how I can use it.
You use cdev.brightness_set_blocking instead of brightness_set...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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prev parent reply other threads:[~2017-09-28 15:24 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-12 9:09 [PATCH] leds: add LED driver for CR0014114 board Oleh Kravchenko
2017-08-12 9:30 ` Pavel Machek
2017-08-12 10:28 ` Oleh Kravchenko
2017-08-12 10:56 ` Pavel Machek
2017-08-12 11:34 ` Oleh Kravchenko
2017-08-12 17:46 ` Pavel Machek
2017-08-12 18:50 ` Oleh Kravchenko
2017-08-12 19:13 ` Pavel Machek
2017-08-12 19:39 ` Oleh Kravchenko
2017-09-28 15:24 ` Pavel Machek [this message]
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