On Tue, 7 Dec 2004 10:08:06 +0100 (CET) Michael Schmitz <[EMAIL PROTECTED]> wrote:
> The backlight level 'register' would permit 255 levels (which ones are > safe to use is a matter of some confusion, though). The 16 levels are just > a matter of convenience to keep the backlight_conv[] tables short. I'm > sure these tables could be replaced by 32 level tables, or we could do > without any tables (they look like simple linear relations to me). The > only benefit I can see is to allow a more fine-grained control to > applications - for the good old backlight buttons, 15 levels seems enough. > I'll change the manpage accordingly. Nice info :-) I never had such a close look into the kernel driver. > Re: backlight control: could you please read back the current backlight > from the kernel before setting a new level upon brightness button events? > The sudden jump in intensity (after some script modified the backlight > level) is somewhat surprising otherwise. Yes, I will. The code is already there but deactivated. Best Regards Matthias