Kernel Patch for Contrast control of Passive LCD

[John Keane <jpkeane@pobox.com>]

Hi all,

I've written a patch to allow adjustment of the contrast on the Passive
(STN) LCD on older powerbooks. (only tested on my 1998 Wallstreet/233 so
far). On my machine I needed it because the contrast was always reset to
max (unreadable) after sleeping.

Currently, I just modified via-pmu.c and pmu.h to add functions to adjust
the contrast and exposed them to userland via 2 new IOCTLs. 

If anyone is interested in trying it out, let me know and I can send you
the patch or maybe post it here.

cheers,

John.