I worked on a DI-30 some time ago, I made it work with osst.o if I remember well.
It's suported on SME5, but doesn't work very well, it's slow and, I think, unreliable.
I also tried a newest osst.o recompiled by myself, with relatively low success.
If you're interested on my work and nobody else comes out with a solution, contact me and I'll send you everything I have.