Module Name:	src
Committed By:	drochner
Date:		Sat Jan  9 15:42:35 UTC 1999

Modified Files:
	src/sys/dev/wscons: wsdisplay.c
Log Message:
rename "struct wsdisplay_conf" -> "struct wsscreen_internal" to reflect
its real meaning
support allocation and deallocation of virtual screens at runtime
implement a "control device" (minor number = 255) and ioctl()s for screen
allocation/deallocation
minor fixes to consistency checks / error handling