On Sat, Jan 03, 2004 at 12:00:40PM -0500, Alan Stern wrote:
> On Sat, 3 Jan 2004, Matthew Dharm wrote:
> 
> > I hate to be this pedantic, but would you call 2.4.23 'working'?
> 
> It looks like it's working to me...

It looks like it to me, also.... but the final arbiter of 'working' or
'not' is the end-user.

> > I'm starting to fear that this device needs to see a MODE_SENSE.... it
> > looks like START_STOP isn't the problem...
> 
> I almost have to agree with you.  Certainly STOP STOP UNIT isn't 
> necessary.

Agreed.  I'm just wondering if the MODE_SENSE is necessary.  That would be
about the most [EMAIL PROTECTED]@@-up device I've ever seen, if it does.

> There's just one significant difference between this log and the one from
> 2.6.  Christian, could you try doing this over again, using 2.4.23, but
> this time do "modprobe sd_mod" before plugging in the camera?  In the log
> from 2.6, sd_mod was already loaded.  In this log, it didn't get loaded
> until you issued the mount command.  It's just barely possible that the
> time delay had some effect.

I've had, in the back of my mind, a suspicion that linux usb-storage is too
fast, but I've never been really able to find any empirical evidence to
support that theory (with one exception -- a user whose device worked with
a 5-second delay added).

> You might also test the MODE SENSE command under 2.6 to see if adding it
> in helps at all.  You can do that by typing the following (as root) before
> plugging in the camera:

This is more than just a good idea -- we really should have this data.

Matt

-- 
Matthew Dharm                              Home: [EMAIL PROTECTED] 
Maintainer, Linux USB Mass Storage Driver

Oh great modem, why hast thou forsaken me?
                                        -- Dust Puppy
User Friendly, 3/2/1998

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