devd limitations / automounting removable storage
Bruce M Simpson
bms at spc.org
Tue Sep 16 16:53:36 PDT 2003
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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