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DateTue, 13 Dec 2005 21:57:11 -0800
FromAndrew Morton <>
SubjectRe: [PATCH] Sonypi: convert to the new platform device interface
"Yu, Luming" <luming.yu@intel.com> wrote:
>> But, from my understanding, sonypi.c should be cleanly implemented in ACPI.
>

heh, good luck.  I've spent a decent chunk of this week making Linux suck
less than 100% on a new Vaio, Am currently at 95%.  Poking things into
sonypi's /proc/acpi/brightness is the only way known of controlling the
screen brightness.  One of the mysterious and undocumented ACPI calls will
do it, but we don't know which, nor how.
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