Path: utzoo!utgpu!news-server.csri.toronto.edu!dgp.toronto.edu!tracyn
Newsgroups: comp.sys.mac.programmer
From: tracyn@dgp.toronto.edu (Tracy Narine)
Subject: device driver question
Message-ID: <1990Oct9.231737.2342@jarvis.csri.toronto.edu>
Organization: CSRI, University of Toronto
Distribution: na
Date: 10 Oct 90 03:17:37 GMT
Lines: 10


I am trying to write a device driver.  The problem I have run into is
globals variables are not allowed.  How do programmers get around this
barrier?  Will the suggestions of technote 256 -> 'globals in stand-alone
code' apply here?  (Is a driver stand-alone code? )  
Also, you can set a driver to wake up periodically.  Which one of the driver
interface routines is called everytime the driver wakes up?

mahendra