Haven't tried it with Edison yet, but it was easy to get NeoPixels to work with the Galieo using FadeCandy - Galileo + Fadecandy = NeoPixels
iirc, the Adafruit library has inline assembly with AVR specific instructions, so it would need to be ported to work with the x86 chips.
have you already NeoPixels up and running? I might be able to dig into it over the weekend ...
have you been able to get Galileo work with neopixel strip ?
thx for your answer