I stumbled upon L-Acoustics which seems to be actively working on an open source AVDECC protocol implementation for all platforms.
(The L-Acoustics gears I've come across so far has been top of the line and superior to anything else I've heard but that is not important in this case but that makes at least me having high hopes they are really putting an effort behind this.)
Their github repo is seemingly very active. https://github.com/L-Acoustics/avdecc
Is this something that can help us get Motu AVB on linux a huge boost ??
From the github text:
"What is LA_avdecc
LA_avdecc is a set of open source libraries for controlling and monitoring AVB entities using the AVDECC protocol (IEEE 1722.1) compliant to Avnu Milan.
These libraries are written in pure C++17. They can be compiled on Windows, Linux and macOS, using standard development tools (procedure below). Unit tests and sample programs are also provided.
These libraries have already been used indirectly in many musical events throughout the world to control all kinds of AVB entities (list below). L-Acoustics' Network Manager 2.5 (and up) now relies on them for all its AVDECC functionalities in compliance to the Avnu Milan Specifications.
Another benefit is the support of Apple’s native API, which allows control of the input and output AVB streams of a Mac from itself (which is not possible with the libraries using PCAP).
We use GitHub issues for tracking requests and bugs."
"Tested AVB entities:
L-Acoustics: LA4X, LA12X, P1
Biamp: Tesira Forte
Avid: S6L MOTU: 112D, 828, Traveller, StageBox16
(my comment here is that Motu Stage-B16 share firmware with Ultralite AVB)
MeyerSound: Galileo GALAXY, CAL
QSC: Q-SYS Cores
Apple: macOS Talker, Listener and Controller (El Capitan and later)
AudioScience: Hono AVB Mini"
Maybe this is news or not..