linux-kernel - Re: Backlight control only in the kernel?

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Message-ID: <20130807103454.GC17920@pd.tnic>
Date:	Wed, 7 Aug 2013 12:34:54 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Aaron Lu <aaron.lwe@...il.com>
Cc:	Matthew Garrett <matthew.garrett@...ula.com>,
	linux-acpi@...r.kernel.org, seth.forshee@...onical.com,
	joeyli.kernel@...il.com, daniel.vetter@...ll.ch,
	intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, lenb@...nel.org, rjw@...k.pl,
	Aaron Lu <aaron.lu@...el.com>
Subject: Re: Backlight control only in the kernel?

On Wed, Aug 07, 2013 at 05:03:15PM +0800, Aaron Lu wrote:
> I think this would require the kernel has the knowledge of which
> backlight interface this system is using or should be using, or it
> wouldn't know which interface should receive and process the event...

Well, we can have a default one, say acpi_video and make it
overridable with command line options like acpi_backlight=vendor or
acpi_backlight=gpu, for example, if acpi_video suffers of a major
suckage...

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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