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Date: Tue, 29 Mar 2005 01:04:33 -0700 (MST)
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To: phk@phk.freebsd.dk
From: "M. Warner Losh" <imp@bsdimp.com>
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Subject: Re: Reattach/redetect allways connected umass device - is it
 possible ? 
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In message: <39733.1112083324@critter.freebsd.dk>
            "Poul-Henning Kamp" <phk@phk.freebsd.dk> writes:
: In message <20050329.010021.32059840.imp@bsdimp.com>, "M. Warner Losh" writes:
: >In message: <32733.1112019870@critter.freebsd.dk>
: >            "Poul-Henning Kamp" <phk@phk.freebsd.dk> writes:
: >: >> Driver support for this is not really meaterialized and therefore
: >: >> the model now is that when the media is ejected the geom device
: >: >> is removed and a new one created right away, even if a new media
: >: >> is not inserted right away.
: >: >
: >: >Do you get eject notifications from any device type?
: >: 
: >: Right now I belive floppy disks DTRT.
: >
: >Isn't there hardware assist for this?
: 
: Only partial.

You should be getting a change notification on the first access after
the change happens...

Warner