There’s the answer! I did not see that description on the Amazon link, but that would explain the behavior.
I have filed a bug report on Git-Hub with the link you provided.
(My user name there is billiam-wrenchall).
Should you require any additional information, please let me know, and I can add that here or in the bug report.
Because there was no listing for the Innomaker, I just tried a few different drivers to see what would be functional.
HifiBerry DAC+ and HifiBerry DAC+ ADC “Kind of” work, but as you said, it’s the wrong driver.
Thank you so much for your help!!!