netdev - Re: [PATCH v1 iwl-next] igc: Add support for LEDs on i225/i226

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Message-ID: <87y1cch4n1.fsf@kurt.kurt.home>
Date: Fri, 26 Jan 2024 09:37:22 +0100
From: Kurt Kanzenbach <kurt@...utronix.de>
To: Andrew Lunn <andrew@...n.ch>
Cc: Jesse Brandeburg <jesse.brandeburg@...el.com>, Tony Nguyen
 <anthony.l.nguyen@...el.com>, Vinicius Costa Gomes
 <vinicius.gomes@...el.com>, "David S. Miller" <davem@...emloft.net>, Eric
 Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo
 Abeni <pabeni@...hat.com>, intel-wired-lan@...ts.osuosl.org,
 netdev@...r.kernel.org, Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: Re: [PATCH v1 iwl-next] igc: Add support for LEDs on i225/i226

On Thu Jan 25 2024, Andrew Lunn wrote:
> On Thu, Jan 25, 2024 at 08:31:54AM +0100, Kurt Kanzenbach wrote:
>> On Wed Jan 24 2024, Andrew Lunn wrote:
>> > On Wed, Jan 24, 2024 at 09:24:08AM +0100, Kurt Kanzenbach wrote:
>> >> Add support for LEDs on i225/i226. The LEDs can be controlled via sysfs
>> >> from user space using the netdev trigger. The LEDs are named as
>> >> igc-<bus><device>-<led> to be easily identified.
>> >> 
>> >> Offloading activity and link speed is supported. Tested on Intel i225.
>> >
>> > Nice to see something not driver by phylib/DSA making use of LEDs.
>> >
>> > Is there no plain on/off support? Ideally we want that for software
>> > blinking for when a mode is not supported.
>> 
>> Plain on and off is supported is supported, too. Should be possible to
>> implement brightness_set().
>
> Great.
>
> Its actually better to first implement brightness_set(). That gives
> you full support for everything the netdev trigger has. Then add
> offload, which is optional, and will fall back to software for modes
> which cannot be offloaded.

Understood. I'll do that.

Thanks,
Kurt

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