Streaming audio and plain block DMA reading in one driver. How?

Hello,
I have a simple PCI (DMA, no scatter/gather) device which capture a data
stream from a sensor factory.
I wrote a driver for it and can read that data to a file, or whatever I
need.

I feel that my device looks very like an audio stream.

Is it possible for a driver to simultaneously have sreaming audio interface
exported and
what are the next step(s) to do after I register subdevice (am I correct
here?): create
port and miniport drivers?

I think AC97 sample is good for me to look at. Good, but too large. I've
lost the thread.
My device is a simple one. No controls, just pure factory of many (64)
syncronous streams (pins?).

Please suggest.
Thanks.