[runnerway]

If the kernel (or any other GPL protected part of code) would have needed any modification you would see the changes on my github. The modifications are part of stuff protected by Apache license that, for many reasons, will stay private.

Ok, thank you for the answer. I understand Wetek is a company so must do its own interest.

The only thing that made me hope was this post from droidelec:

We are happy to announce that we finally fix HD Audio passthrough for both S8xx and S9xx Platforms in Kodi, so from now on all owners of WeTek Core and other devices powered either by S8xx or S9xx can enjoy in HD Audio passthrough.

Tested:

DTS-HD Master

Dolby TrueHD

Tested on both WeTek Core (S812-H) and WeTek Play+ (S905-H Rev. C) with Android Lollipop 5.1.1.

Today we will try prepare OTA Firmware update for WeTek Core. We will send all patches and changes so it can be add to Kodi, until then people can use modified version of Kodi.

Next to follow is OpenELEC for Core.

WeTek-Jarvis-16.0rc2-v1-HD-Audio-Passthrough.apk

Code:

https://mega.nz/#!S9tgRb6Q!Na6YEDT257-QxwiE2k5riPwErEC4I0WtxrALrpNNNrc

Notes:

We cherry-picked the AudioTrack commits made by koying for the Minix Neo U1 (S905) Isengard sources and applied them to Jarvis rc2, the modified source code will be available soon on ChristianTroy's github.

He said that "all owners of WeTek Core and other devices powered either by S8xx or S9xx can enjoy in HD Audio passthrough"
Probably he wasn't right. So if we want HD Audio passthrough on other boxes we need your (or better to say koying) Kodi modifications and some patching to Android framework we must discover ourself.
(Or hope Wetek will release as opensource their edits , or maybe koying will say something in the future because i think he made the same thing on Minix boxes..)