So,
The driver is installable only on old Volumio, but old volumio isn’t compatible withe raspberry pi3 b+
The dac is not installable to me; but is usable.
I think that is unable to play 16 and 24 bit files; if you read dsd files, or others files, upsampled at 32 bit, dac works fine.
Who knows if in the future this dac will be compatible with volumio?
In order to comply with this, it can’t include non open source software. This seems the case for the ess driver.
I see two way :
A user write easy way to install it (plugin ? compiled for the kernel used in volumio). But it won’t be includes in volumio.
2 ) Driver becomes open source, and it is included…