Root I found the LGMS500 open source. (From the OpenSource Code Distribution)

[Dunard]

http://opensource.lge.com/osSch/list?types=NAME&search=MS500

This should get people going porting this into CyanogenMod source tree. https://github.com/CyanogenMod/android/tree/cm-13.0 I don't know it be any help or not.