Accessing kmem, how about a driver?

[Steve Dyer]

In fact, the Harvard and BBN PDP-11 and C/70 kernels have had "table
devices" installed for almost 5 years now.  I believe a prototypical
device driver was distributed on a USENIX tape a few years ago.  It
has all the advantages you allude to: greater security (these files
may more reliably have read permission than, say, kmem) as well as some
measure of include file independence, as long as structure tags are not
reordered--ioctls return the size of each element as well as the total number
of elements.
-- 
/Steve Dyer
{decvax,linus,ima,ihnp4}!bbncca!sdyer
sdyer at bbncca.ARPA