The dev->halt() func can be called at any time, and the dev->recv() func
does not need to use NetRxPackets[] when calling NetReceive().
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
As discussed on mailing list, <0 indicates failure, >=0 indicates number
of interfaces found.
Also added blurb about private data
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>