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Date:      Wed, 17 Sep 2003 00:27:24 +0100
From:      Bruce M Simpson <bms@spc.org>
To:        freebsd-arch@freebsd.org
Subject:   devd limitations / automounting removable storage
Message-ID:  <20030916232724.GG3052@saboteur.dek.spc.org>
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Hi,

I noticed that when I attach a USB key fob, I don't get a devd message to
say e.g. 'da0 at umass-sim0 bus 0 target 0 lun 0'.

Any objections to adding devd notifications to the CAM layer? It would
allow us to automount such devices. Specifically I'm thinking that a
program to change the running automounter map could be used.

Of course, filesystems which could be removed at any time would have to
use synchronous I/O completion and preferably a log-structured filesystem
(see recent fsync/msdosfs bug and ohci problems).

What do people think?

Perhaps we could extrapolate this to when CDs are inserted into drives
(one for Soren...)

BMS
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