The libhybris situation is a pretty miserable compromise. You land on an old, busted Android kernel, with a userland that mostly works. It exists only because the major SoC vendors have no motivation to support a chip after they've shipped a BSP that successfully builds and makes the hardware occasionally provide the desired features.
(Apologies for being a bit harsh; I've wasted a ton of time recently hacking on Allwinner and Amlogic chips)
(Apologies for being a bit harsh; I've wasted a ton of time recently hacking on Allwinner and Amlogic chips)