K 10
svn:author
V 8
hselasky
K 8
svn:date
V 27
2016-08-15T09:00:46.308084Z
K 7
svn:log
V 211
MFC r303765:
Keep a reference count on USB keyboard polling to allow recursive
cngrab() during a panic for example, similar to what the AT-keyboard
driver is doing.

Found by:	Bruce Evans <brde@optusnet.com.au>

END