Attachment #35087 for bug #56758

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contains the number of times the timeout has expired since the last call to
.Fn kevent .
This filter automatically sets the EV_CLEAR flag internally.
.It EVFILT_NETDEV
Takes a descriptor to a network interface as the identifier and the events to watch for in 
.Va fflags ,
and returns when one or more of the requested events occurs on the descritor. The events to monitor are:
.Bl -tag -width XXNOTE_TRACKERR
.It NOTE_LINKUP
The link is up.
.It NOTE_LINKDOWN
The link is down.
.It NOTE_LINKINV
The link state is invalid.
.El
.Pp
On return,
.Va fflags
contains the events which triggered the filter.
.El
.Sh RETURN VALUES
The

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Lines 404-409 Link Here

(-)lib/libc/sys/kqueue.2 (+16 lines)
404	contains the number of times the timeout has expired since the last call to	404	contains the number of times the timeout has expired since the last call to
405	.Fn kevent .	405	.Fn kevent .
406	This filter automatically sets the EV_CLEAR flag internally.	406	This filter automatically sets the EV_CLEAR flag internally.
		407	.It EVFILT_NETDEV
		408	Takes a descriptor to a network interface as the identifier and the events to watch for in
		409	.Va fflags ,
		410	and returns when one or more of the requested events occurs on the descritor. The events to monitor are:
		411	.Bl -tag -width XXNOTE_TRACKERR
		412	.It NOTE_LINKUP
		413	The link is up.
		414	.It NOTE_LINKDOWN
		415	The link is down.
		416	.It NOTE_LINKINV
		417	The link state is invalid.
		418	.El
		419	.Pp
		420	On return,
		421	.Va fflags
		422	contains the events which triggered the filter.
407	.El	423	.El
408	.Sh RETURN VALUES	424	.Sh RETURN VALUES
409	The	425	The