I've been working on porting the FreeBSD maestro3 driver to NetBSD, and
have it _almost_ working. I'm having some troubles with when to call the
ISR, and as a result, the sound is a bit skippy. If someone could look at
this for me, I'd appreciate it.

The sources are available at:
  http://invisible.yi.org/~jmcneill/netbsd/esa-20010823.tar.gz

Thanks,
Jared