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

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Message-ID: <c5f17977-c04e-9b12-dd4b-8281f746a42d@lechnology.com>
Date:   Thu, 22 Sep 2016 11:45:51 -0500
From:   David Lechner <david@...hnology.com>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     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>,
        Pavel Machek <pavel@....cz>
Subject: Re: [PATCH v4 1/3] leds: Introduce userspace leds driver

On 09/22/2016 08:43 AM, 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.
>

Several use cases are explained in this thread:
https://lkml.org/lkml/2016/7/25/505


>> +See tools/leds/uledmon.c for an example userspace program.
>
> Where is this program? Not in this patch for sure.
>
> Yours,
> Linus Walleij
>