Re: [PATCH 2.6.18-mm2] acpi: add backlight support to the sony_acpi driver

Arjan van de Ven
2006-10-11T06:59:28Z

On Tue, 2006-10-10 at 22:26 +0100, Matthew Garrett wrote:
> On Tue, Oct 10, 2006 at 10:32:46PM +0800, Yu Luming wrote:
>
> > >From my understanding, a cute userspace App shouldn't have this kind
> > of logic:
>
> (snip switching on hardware type)
>
> > It should be:
> > just write/read file in /sys/class/backlight ,....
>
> Yup, but to do that on Dell hardware is basically impossible. It'd be
> nice if they implemented the ACPI video extension properly for future
> hardware.

it'd also be nice if the linux-ready firmware developer kit had a test
for this, so that we can offer 1) a way to test this to the bios guys
and 2) encourage adding/note the lack easily

>
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