>I need a URL or a .ps or .pdf document, or something.

A lot of the sun device driver development and DDI information
is available free from soldc.sun.com.  You may have to
register to get to see it, but registration costs nothing other
than your information.  It was quite good information that allowed
me to do a Coda Kernel module for solaris.

-- 
Phil Nelson
e-mail: philnelson@home.com  (Work: phil@cs.wwu.edu)
web: members.home.com/philnelson