linux-kernel - Re: [RFC PATCH 0/8] Add configurable block device LED triggers

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Message-ID: <20210729085413.GA16945@amd>
Date:   Thu, 29 Jul 2021 10:54:13 +0200
From:   Pavel Machek <pavel@....cz>
To:     Ian Pilcher <arequipeno@...il.com>
Cc:     linux-block@...r.kernel.org, linux-leds@...r.kernel.org,
        axboe@...nel.dk, linux-kernel@...r.kernel.org,
        kernelnewbies@...nelnewbies.org
Subject: Re: [RFC PATCH 0/8] Add configurable block device LED triggers

Hi!

> This patch series adds configurable (i.e. user-defined) block device LED
> triggers.
> 
> * Triggers can be created, listed, and deleted via sysfs block class
>   attributes (led_trigger_{new,list,del}).
> 
> * Once created, block device LED triggers are associated with LEDs just
>   like any other LED trigger (via /sys/class/leds/${LED}/trigger).
> 
> * Each block device gains a new device attribute (led_trigger) that can
>   be used to associate the device with a trigger or clear its
>   association.

That's not how this is normally done.

We normally have a trigger ("block device activity") which can then
expose parameters ("I watch for read" and "I monitor sda1").

Is there a reason normal solution can not be used?

Best regards,
								Pavel
-- 
http://www.livejournal.com/~pavelmachek

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