On ?t 09-02-06 09:53:44, Gabor Gombas wrote: > On Wed, Feb 08, 2006 at 05:08:58PM +0000, Matthew Garrett wrote: > > > The backlight interface only supports exporting and setting the current > > brightness. For various bits of hardware, the AC and DC brightnesses are > > stored separately. Drivers would need to know which brightness value to > > export to userspace. I have an HP backlight driver here which would > > benefit from this, and I'm looking at the same issue for a Panasonic > > one. > > I don't know the backlight interface but extending it to export all > available brightness values would seem more logical to me. > > If I'd had a laptop I'd hate if I could only set the DC brightness if I > plug out the AC power. Still "set current brightness" operation makes a lot of sense. Pavel -- Web maintainer for suspend.sf.net (www.sf.net/projects/suspend) wanted...
