linux-kernel - Re: [PATCH v4 1/3] leds: Introduce userspace leds driver

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Message-ID: <20160924120603.GC8696@amd>
Date:   Sat, 24 Sep 2016 14:06:03 +0200
From:   Pavel Machek <pavel@....cz>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     David Lechner <david@...hnology.com>,
        Richard Purdie <rpurdie@...ys.net>,
        Jacek Anaszewski <j.anaszewski@...sung.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-leds@...r.kernel.org" <linux-leds@...r.kernel.org>,
        Marcel Holtmann <marcel@...tmann.org>
Subject: Re: [PATCH v4 1/3] leds: Introduce userspace leds driver

On Thu 2016-09-22 15:43:35, Linus Walleij wrote:
> On Fri, Sep 16, 2016 at 9:16 PM, David Lechner <david@...hnology.com> wrote:
> 
> > This driver creates a userspace leds driver similar to uinput.
> 
> Just out of curiosity: what is this used for?
> The typical usecase evades me, so I'd really want to know.

I have RGB led connected using ESP board over ttyUSB0. I guess I'll
want to keep the driver in userspace, but I still may want "normal"
/sys/class/leds interface for it.
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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