I was hoping to find a SCSI bus implementation (or
pseudo-implementation) that handled hotplug of *targets* gracefully. I
can't seem to find any that don't require collaboration from cfgadm.
(There are some that hotplug the whole *bus*, e.g. scsa2usb and
scsa1394, but not individual targets.)
In other words, imagine I have a "pseudo-bus", that can detect when
targets (emulated disks, in this case) arrive or depart. It would be
nice to have "sd" come up automatically, and also get a notice when the
device has departed, without having to rip out the underlying "bus".
Any thoughts on where I can look for examples?
As far as I can tell, USB seems to be the only bus that "autosenses"
hotplug events and auto-attaches devices without administrative action
(maybe also 1394, but I'm not sure). Perhaps this is done in
collaboration with sysevent or other userland code?
-- Garrett
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