tty driver advice

[fbp at pixdoc.UUCP]

Does anyone have any suggestions as to where I might find a good example
of a tty driver.  On all of the systems I have seen to date they seem
to be an evolved hack.  My biggest pet peave is the processing of ^H
at interrupt time.  This could be done just fine on the user side of
the input queue.  Of course the myriads of buffering and "clever"
activity at the low levels seem imprudent if not dangerous.

Also, If anyone has comments of the various schemes of dynamic tty queues
and such, please let them fly.  This seems to be less of a science and
more of am art (read vodo) from what I can see.

Referances to texts like Xinu and Minex are very welcome.


				Rick	...!harvard!wjh12!pixel!pixdoc!fbp