Some success: Using the google search, I was able to find an example of the ess1869 sound card under Linux.
Now, at least the sound modules load, and YIFF sound driver says it's working in the boot startup messages. However, I still cannot open /dev/dsp And yes, I did make the changes recommended here: I added myself to the group Audio, and chmod 666 /dev/dsp Any further insights? Curt- -- The Road goes ever on and one, down from the door where it began. Now far ahead the Road has gone and I must follow, if I can, Pursuing it with eager feet, until it joins some larger way Where many paths and errands meet. And whither then? I cannot say.