	ident	"@(#)README	1.4	94/06/20 SMI"

DRIVER NAME:
	cgsix -- sample frame buffer driver for cg6 frame buffer

ARCHITECTURES:
	SPARCstation 1 and newer platforms with cg6 frame buffer.
	NOTE: this driver code does not support Sun-4 workstations.

DESCRIPTION OF DRIVER:
	Uses the DDI/DKI mapdev interfaces to manage frame buffer
	memory

	Source Files
	-------------
	
	cg6reg.h -- data structures relating to cg6's hardware not exported
		    to applications using the device
	cg6var.h -- data structures and ioctl's for the driver (to be
		    used by application programs as well as the driver)
	cg6io.h  -- more data structures for the driver
	cgsix.c  -- driver source code

COMPILING/LOADING:
	(1) build the driver (with "make")

	(2) Make a backup copy of /kernel in /kernel_dist.  In the event
	    the new cgsix driver doesn't work, you can then reboot your 
	    system from /kernel_dist with boot -a.  It is highly 
	    recommended that you do not use your primary desktop workstation 
	    when testing device drivers; use a dedicated lab machine (with
	    no irreplaceable data on it) instead.

	(3) Copy the new cgsix driver to your /kernel/drv directory and reboot
	    the system.

REFERENCES:
        SunOS 5.4 Writing Device Drivers
