Hi! > I have been thinking about the last Multicolor Framework proposal by > Dan. We talked on the phone... and I promissed some links. I'd really prefer drivers to present output power to the of the kernel/userland, and deal with the RGB conversion else where. So if driver was asked for (20, 50, 100), red output would go to (20/1000) W, green (50/1000) W, ... RGB is described here: https://en.wikipedia.org/wiki/RGB_color_model (see section "nonlinearity") https://en.wikipedia.org/wiki/Gamma_correction And concrete values are here: https://en.wikipedia.org/wiki/SRGB#Specification_of_the_transformation While playing with colors, I came up with this: https://github.com/pavelmachek/unicsy_demo/blob/master/monitor/notint.py See change_color for exact transformation (it could be improvede, linear part is not there). It can be also used to display same color on monitor and LED. It get somehow reasonable results for me... Best regards (and good luck), Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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