Bert Freudenberg wrote: > On 25.04.2008, at 10:46, Martin Dengler wrote: > > >> On Fri, Apr 25, 2008 at 12:07:12AM -0400, Eben Eliason wrote: >> >>> On Thu, Apr 24, 2008 at 10:43 PM, John Watlington <[EMAIL PROTECTED]> >>> wrote: >>> >>>> Bert misread the spec. When the backlight is switched off, the >>>> screen >>>> automatically switches to B&W mode. Why would you want to take >>>> that out of the control of the user ? >>>> >>> It's clear to me that it would be quite useful to have a >>> bright backlight AND black & white mode for reading a book at night, >>> for instance, and this isn't possible in the current UI. >>> >> The camera could be checked once when the device went into/out of >> ebook mode >> and the backlight changed appropriately. >> > > > Malicious software also could snap a picture of the user at that > moment. This is the privacy issue that Ivan mentioned, and I agree, we > cannot use a camera image for this. > > What I suggested before, but which was not practicable, would be some > "passive" readout-hardware in the camera that only reports a single > brightness value. But I was told the current design would require to > power the camera on for that. And in a new hardware design it may be > cheaper and better to add a photo sensor than this. > > The biggest benefit I see from adding this is power savings. The > backlight should be automatically turned off when there is enough > ambient light, to save power. Switching it back on could easily be > done by the user (or automatically for convenience). Hey, why not let the kids build this them self ? Here is a DIY light sensor project: http://www.evilmadscientist.com/article.php/nightlight
Karl _______________________________________________ Devel mailing list [email protected] http://lists.laptop.org/listinfo/devel
