On Mon, Mar 19, 2001 at 04:21:45PM -0000, eeh@netbsd.org wrote:
> 
> I would prefer something that uses strings to identify events
> to userland so new event types could be created without
> much fear that they would conflict.  By qualifying the
> event by a subsystem type, the probablility of conflict
> between two different events would be minimal.

As I've already pointed out elsewhere, copying strings in and out of
the kernel for poll(2)/select(2)-like functionality would be a
significant CPU hit, which partly defeats the point of doing this in
the first place.