cgfour entries in 4.0 kernel for 3/60

live by the lawn dart, die by the lawn dart david at sun.com
Wed Feb 22 11:33:06 AEST 1989


In article <2786 at stpstn.UUCP> hsi!stpstn!aad at uunet.uu.net (Anthony A.
Datri) writes:

>The 4.0 man page for cgfour says to use the following line in a kernel
>conf file for a color 3/60:
>
>device          cgfour0 at obmem 7 csr 0xff000000 priority 4
>
>and the 4.0 conf file contains the following entries:

	[ lots of goop deleted ]

You need a better grep.  Here are the relevant lines from the 4.0
/usr/sys/sun3/conf/GENERIC:

# 3/60 P4 color frame buffer
device		cgfour0 at obmem 7 csr 0xff300000 priority 4	# 3/60
# 3/60 plug-in color frame buffer
device		cgfour0 at obmem 7 csr 0xff400000 priority 4	# 3/60
# Support for monochrome memory frame buffers on various machines.
device		bwtwo0 at obmem 7 csr 0xff000000 priority 4	# 3/60
# 3/60 P4 color frame buffer overlay plane, or P4 monochrome frame buffer
device		bwtwo1 at obmem 7 csr 0xff300000 priority 4	# 3/60
# 3/60 plug-in color frame buffer overlay plane
device		bwtwo1 at obmem 7 csr 0xff400000		# 3/60

There are 2 flavors of plug-in cg4 frame buffer:

1. The "3/60 color frame buffer", normally shipped with 3/60s; will *not*
work in 4/110s.

2. The "P4 color frame buffer", normally shipped with 4/110s; will also
work in 3/60s, but is not necessarily supported.

It turned out to be convenient to have separate config file entries for
the two types.

David DiGiacomo, Sun Microsystems, Mt. View, CA  sun!david david at sun.com



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