kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals
kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)
based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe
many bugs have been fixed).
Changes:
The wskbd, wsmouse, and wsmux are now "sub-classes" of wsevsrc, which is
a source of ws events. This make the structure of those drivers a little
more uniform.
Many bug fixes involving adding and removing devices from muxes.
When a kernel is configured without wsmux there will now be none (unlike
before where you got a console mux anyway).
The kernel now compiles with all combinations of ws devices present.
jdolecek