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

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Message-ID: <20210729183541.GA6772@duo.ucw.cz>
Date:   Thu, 29 Jul 2021 20:35:41 +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

On Thu 2021-07-29 12:03:04, Ian Pilcher wrote:
> On 7/29/21 3:54 AM, Pavel Machek wrote:
> > 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?
> 
> This big difference is that this allows different devices to drive
> different LEDs.  For example, my NAS has 5 drive bays, each of which
> has its own activity LED.  With these patches, I can create a
> separate trigger for each of those LEDs and associate the drive in each
> bay with the correct LED:

Yes, and I'd like to have that functionality, but I believe userland
API should be similar to what we do elsewhere. Marek described it in
more details.

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

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