Re: [linux-usb-devel] Re: [PATCH] USB changes for 2.5.58

[Matthew Dharm <mdharm-usb@one-eyed-alien.net>]

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Well, we only create the host when the device is first attached.  After
that, if it goes away and comes back, we re-connect it to the old SCSI
host.

But, while the device is gone, you've created an association between a SCSI
node that exists and a non-existant USB device.  Basically, you've got a
pointer that is no longer valid.  And when the device is re-attached, there
isn't code to re-establish the correct SCSI<->USB association.

Something like this would proabably make sense if the hot-unplugging code
for SCSI hosts was really stable -- then we could unregister the host when
the device went away, and this relation would be disconnected
automatically.

Matt

On Thu, Jan 16, 2003 at 09:35:39AM -0800, Greg KH wrote:
> On Thu, Jan 16, 2003 at 09:31:12AM -0800, Matthew Dharm wrote:
> > Hrm... doesn't this all fall to pot when the device is unplugged and
> > repluged?
> 
> Um, how?  This seems to work for me, but I don't have a lot of devices
> here.  And if there is a problem, you might want to tell the scsi
> people, as they are the ones advocating this call be added.

-- 
Matthew Dharm                              Home: mdharm-usb@one-eyed-alien.net 
Maintainer, Linux USB Mass Storage Driver

You are needink to look more evil.  You likink very strong coffee?
					-- Pitr to Dust Puppy
User Friendly, 10/16/1998

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