[fritsch]

With your latest PT change, it shows IEC 8 channels available on both devices(RK3229 MM, RK3288 LP), so I think that will all work now.
I asked some users to do tests and report back but they will do it on a RK3288 Lollipop device since latest nightly Kodi's don't crash on Lollipop firmware.
Here is a log just to show the pass-through settings available on RK3229 Marshmallow now.
http://pastebin.com/8bFTMUb0

Thanks for that. Curious on the feedback.

Edit: Something else I realized: ENCODING_IEC61937 is Constant Value: 13 (0x0000000d) for default droid. On your system it's 20. So be careful that if SW does not recheck that (we do) that it might not work on other sw.