linux-kernel - Re: [PATCH v10] leds: USB: HID: Add support for MSI GT683R led panels

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Date:	Tue, 24 Jun 2014 15:10:43 +0200
From:	Bjørn Mork <bjorn@...k.no>
To:	Johan Hovold <johan@...nel.org>
Cc:	Greg KH <greg@...ah.com>,
	Janne Kanniainen <janne.kanniainen@...il.com>, jkosina@...e.cz,
	cooloney@...il.com, linux-kernel@...r.kernel.org,
	linux-leds@...r.kernel.org, linux-usb@...r.kernel.org,
	linux-input@...r.kernel.org
Subject: Re: [PATCH v10] leds: USB: HID: Add support for MSI GT683R led panels

Johan Hovold <johan@...nel.org> writes:

> This is a non-standard attribute of this particular laptop. It has three
> individual LEDs that can be enabled separately (using standard LED class
> attributes), but they will all three be in the same "mode" (which here
> apparently means that they can be fully on, vary with the volume(?!), or
> pulse synchronously when enabled).
>
> If we were to implement this mode attribute as a class attribute,
> changing the mode of of one LED would also change the mode of the other
> two devices (LEDs).

Document this behaviour and it becomes a feature.


Bjørn
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