Date: Sun, 01 Jul 2007 21:48:47 -0700 From: Nate Lawson <nate@root.org> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: current@FreeBSD.org, "M. Warner Losh" <imp@bsdimp.com> Subject: Re: GEOM weirdness with SD flash reader? Message-ID: <468883AF.8040300@root.org> In-Reply-To: <42855.1183350086@critter.freebsd.dk> References: <42855.1183350086@critter.freebsd.dk>
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Poul-Henning Kamp wrote: > In message <4688786F.5080408@root.org>, Nate Lawson writes: >> M. Warner Losh wrote: > >> Nope, dmarck is right. The reader was inserted "empty", then the media >> was added. It took a write to the device (maybe via the mount attempt >> of /dev/da2) to trigger a re-taste. > > Actually you only need to open it for write, I usually use: > > true > /dev/da2 Ok. > The problem here is, quite simply, that nobody tells GEOM that a card > has been inserted. > > opening for a write and then closing it forces a retaste because metadata > blocks could have been written. > > The correct fix for this is to have scsi_da tell geom that the card > was inserted. It doesn't get an interrupt or anything. The only way to find media is now present is through polling. I suggested in another reply how to do this from userland. I just tested that method and it works. -- Nate
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