Module Name:	syssrc
Committed By:	drochner
Date:		Mon Dec  6 18:52:24 UTC 1999

Modified Files:
	syssrc/sys/dev/wscons: wsdisplay.c wsdisplay_compat_usl.c
	    wsdisplayvar.h

Log Message:
-allow the "show_screen" call to the display driver to complete
 asynchronously, in the same style like the process attach/detach functions
-intercept the "cnpollc" call which originally went directly to the
 keyboard driver and keep track whether the console is in "polling" state
 (DDB!)
-pass a NULL callback to the screen switcher and the process attach/detach
 functions if the console is "polling", to tell them that asynchronous
 completion is forbidden


To generate a diff of this commit:
cvs rdiff -r1.32 -r1.33 syssrc/sys/dev/wscons/wsdisplay.c
cvs rdiff -r1.10 -r1.11 syssrc/sys/dev/wscons/wsdisplay_compat_usl.c
cvs rdiff -r1.13 -r1.14 syssrc/sys/dev/wscons/wsdisplayvar.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.