Hi jonnie,
regarding DAC8DSD not appearing on the identify device list:
I have contacted roon and I hope that DAC8DSD will be soon added to this list.
Regarding DAC8DSD connected to a Linux based network/USB bridge:
Currently the DAC8DSD only supports DSD up to DSD128 (DoP mode) from a Linux based source. This should be possible without any changes or firmware upgrades to the DAC8DSD.
Higher DSD sample rates require Native DSD mode. This mode is currently only supported by Windows based sources with the T+A USB and ASIO drivers installed.
Note: We are working on Native DSD support for Linux based network bridges but we really can not say if and when we can release this to the public…
For the time beeing we recommend using a Windows based network bridge like for example roonbridge running on a Windows (mini) PC. Roon bridge on Windows will support Native DSD up to DSD512 with our DACs.