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From: Andrew Lunn <andrew@lunn.ch>
To: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: "Marek Behún" <kabel@kernel.org>,
	"Rob Herring" <robh+dt@kernel.org>, "Pavel Machek" <pavel@ucw.cz>,
	"linux-leds@vger.kernel.org" <linux-leds@vger.kernel.org>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	devicetree@vger.kernel.org
Subject: Re: lets settle the LED `function` property regarding the netdev trigger
Date: Tue, 5 Oct 2021 22:12:04 +0200	[thread overview]
Message-ID: <YVyxlEVQ7TvMs5DH@lunn.ch> (raw)
In-Reply-To: <0b1bc2d7-6e62-5adb-5aed-48b99770d80d@gmail.com>

> > > There are two different ways this can be implemented. There can be two
> > > independent LEDs within the same package. So you can generate three
> > > colours. Or there can be two cross connected LEDs within the
> > > package. Apply +ve you get one colour, apply -ve you get a different
> > > colour. Since you cannot apply both -ve and +ve at the same time, you
> > > cannot get both colours at once.
> > > 
> > > If you have two independent LEDs, I would define two LEDs in DT.
> > 
> > No, we have multicolor LED API which is meant for exactly this
> > situation: a multicolor LED.

> What do you mean by dependency here?

https://www.youtube.com/watch?v=5M9p25OfKdg

There are two different ways you can two LEDs in one package.

Some Ethernet PHY RJ45 connector housings have bi-colour LEDs. Some
have tri-colour LEDs, and some have mono-colour LEDs.

      Andrew

  reply	other threads:[~2021-10-05 20:12 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-01 12:36 lets settle the LED `function` property regarding the netdev trigger Marek Behún
2021-10-03 18:56 ` Andrew Lunn
2021-10-03 19:26   ` Marek Behún
2021-10-04 14:50     ` Andrew Lunn
2021-10-04 15:08       ` Marek Behún
2021-10-04 17:28         ` Andrew Lunn
2021-10-05 20:30           ` Marek Behún
2021-10-05 21:52             ` Andrew Lunn
2021-10-05 19:58         ` Jacek Anaszewski
2021-10-05 20:12           ` Andrew Lunn [this message]
2021-10-05 20:26           ` Marek Behún
2021-10-05 21:01             ` Andrew Lunn
2021-10-05 21:43               ` Marek Behún
2021-10-05 22:06                 ` Andrew Lunn
2021-10-05 23:06                   ` Marek Behún
2021-10-06 12:57                     ` Andrew Lunn
2021-10-07 17:13                       ` Marek Behún

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