AT&T SysV 386 Driver for Targa
Gary Fostel
fostel at cscadm.ncsu.edu
Wed Mar 28 14:54:30 AEST 1990
I am about to write a driver for a graphics board to be installed on
a SysV system running on a largish PC/AT platform. The board we are
testing with is a Targa graphics card tht does simple frame grabs and
displays and eventually this will be replaced by a "compatible" board
from Matrox called an Illuminator. The targa is very widely used under
PC/DOS and perhaps, maybe, pretty please, also by someone else under
sysV unix.
The driver is simplicity itself compared to most drivers for
a graphics subsystem, but alas we do not have sources for the UNIX
code nor do we have the exhorbitantly priced manuals from AT&T that
explain in detail how to write and install character and block drivers
for a SysV 386 UNIX. (They want $350 for this and it may be worth
it, but due to budget troubles here, paper clips and paper for xeroxing
are considered precious.)
Does anyone have those AT&T manuals and recommend them highly enough
to scrape up the money to buy them? Is the 386 SysV enough like
other "generic" unix systems that I can assume common kernel functions
are there with the names I expect? Not having the sources to this
UNIX guts my prefered approach of stealing code from other drivers
and adjusting as needed until it stops crashing....
If the lic. rules allow, even the sources for a simple SysV driver
might help so I could see what std kernel functions I can use. Not
sure about the legality of it.
Thanks for any suggestions. (Thanks even more if someone has already
done this for a Targa board and is feeling very generous towards a
poor state university down on its luck.)
----gary----
Gary Fostel
fostel at cscadm.ncsu.edu
Department of Computer Science
North Carolina State University
(919) 737-3195
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