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From: harmon@abvax.icd.ab.com (Larry Harmon)
Newsgroups: comp.sys.m6809
Subject: OS9 Level II device drivers
Message-ID: <58@abvax.icd.ab.com>
Date: Thu, 10-Sep-87 12:04:46 EDT
Article-I.D.: abvax.58
Posted: Thu Sep 10 12:04:46 1987
Date-Received: Sat, 12-Sep-87 18:16:54 EDT
Organization: Allen-Bradley Company, Inc; Industrial Computer Division, Highland Heights, OH
Lines: 13
Keywords: OS9 Level II device driver


	When I was running Level 1 os9 on my Dragon I had two device
drivers which I loaded and linked only as needed then unlinked when
I no longer needed them.  One was a parallel printer driver the other
was a serial port driver.  
	I am now using the same hardware with my CoCo 3 Level II system, but
have been unable to use the old drivers.  When I try to load them I get a
"System RAM full" error.  What does it all mean?  Do drivers need to be linked
into the bootfile?  Should my driver be using the attach system call? What
are the differences between level 1 and level II drivers?

					Thanks in advance.
							Larry Harmon