netdev - Re: [PATCH RESUBMIT] leds: trigger: netdev: add core support for hw not supporting fallback to LED sw control

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Date: Thu, 11 Jan 2024 08:44:25 +0000
From: Lee Jones <lee@...nel.org>
To: Heiner Kallweit <hkallweit1@...il.com>
Cc: Pavel Machek <pavel@....cz>,
	"linux-leds@...r.kernel.org" <linux-leds@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH RESUBMIT] leds: trigger: netdev: add core support for hw
 not supporting fallback to LED sw control

On Sun, 17 Dec 2023, Heiner Kallweit wrote:

> On 17.12.2023 19:46, Heiner Kallweit wrote:
> > If hw doesn't support sw control of the LED and we switch to a mode
> > not supported by hw, currently we get lots of errors because neither
> > brigthness_set() nor brithness_set_blocking() is set.
> > Deal with this by not falling back to sw control, and return
> > -EOPNOTSUPP to the user. Note that we still store the new mode.
> > This is needed in case an intermediate unsupported mode is necessary
> > to switch from one supported mode to another.
> > 
> > Add a comment explaining how a driver for such hw is supposed to behave.
> > 
> > Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
> > ---
> 
> For whatever reason this patch (original version and resubmit) doesn't
> show up on linux-leds patchwork. In netdev patchwork it's visible.

Never used it.  Do you have a link?

-- 
Lee Jones [李琼斯]