linux-kernel - Re: [RESEND PATCH v17 00/17] Multi Color LED Framework

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Date:   Fri, 28 Feb 2020 10:34:06 +0100
From:   Pavel Machek <pavel@...x.de>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Dan Murphy <dmurphy@...com>, Pavel Machek <pavel@...x.de>,
        linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RESEND PATCH v17 00/17] Multi Color LED Framework

Hi!

> > >> Writing 3 or 4 or 5 numbers all at once in a single sysfs file to
> > >> represent a single output should be fine.
> > >> thanks,
> > 
> > Thank you for making this clear.
> > 
> > Effectively, the way to go as I see it now is just moving from
> > colors directory to channel_intensity and channel_names files.
> 
> Wait, we already have an interface for this and you want to create a
> competing one?  Why?  What's wrong with what you have now?
> 
> Do you have a pointer to the Documentation/ABI/ entries that you have
> now that you feel do not work well?

No, we don't have ABI for RGB LEDs, but there's well-known proposal on
the list Jacek is talking about.

We currently handle RGB LED as three separate LEDs, and that does not
work well.

Best regards,
								Pavel
-- 
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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