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

[Richard Hughes]

On Tue, 2006-10-10 at 22:32 +0800, Yu Luming wrote:
> >From my understanding, a cute userspace App shouldn't have this kind
> of logic:
>         if (is  DELL )
>                 invoke libsmbios
>         if (is  foo)
>                 invoke libfoo,
>         if (is bar)
>                 invoke libbar,
>         ....
>         else
>                 operate on /sys/class/backlight/ ,.,..

This is what HAL has at the moment[1]. And it's hell to maintain, but
works for a lot of users.

> It should be:
>         just write/read  file in  /sys/class/backlight ,....

That would make things much easier IMO.

Richard.

[1]
http://gitweb.freedesktop.org/?p=hal.git;a=blob;h=3ff9284be440a7197b0de9b5f0234761c3397cb1;hb=dbffafacbf7b9143d82547b9eabe61d1a5b8fffc;f=tools/linux/hal-system-lcd-get-brightness-linux

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