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Subject:	Re: OT: Krazy USB Kameras (RE: Programatically finding value of "cygdrive" prefix)
From:	Hannu E K Nevalainen <_garbage_collector_ AT telia DOT com>
To:	cygwin AT cygwin DOT com
In-Reply-To:	<42B93C2D0140A17D@pne-smtpin1-sn2.hy.skanova.net> (added by postmaster@pne.skanova.net)
References:	<42B93C2D0140A17D AT pne-smtpin1-sn2 DOT hy DOT skanova DOT net> (added by postmaster AT pne DOT skanova DOT net)
Date:	Wed, 17 Aug 2005 20:07:11 +0200
Message-Id:	<1124302031.4734.11.camel@p450>
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On Tue, 2005-08-16 at 20:41 -0500, Gary R. Van Sickle wrote:
> [snip]
> > 
> > NOTE: A digital camera shows up as an USB drive, i.e. a DOS 
> > drive -> e.g. /cygdrive/<next free letter> - and is available 
> > so long as the camera stays ON (it eventually WILL go OFF 
> > after last use, just as your screen blanker! Depending on how 
> > you've set it or use it.)
> > 
> 
> A USB Mass Storage Device that does this is poorly designed at best, and
> probably not compliant with the USB specification.  I can't recall a
> situation where a device is allowed to just "disappear" once plugged in and
> enumerated without the user doing something (a bus-powered device anyway).
> You should see if there is a firmware upgrade available for it.

Poorly designed or not, that is the way a Minolta Dimage Z1 behaves, at
least mine does - with my current settings. As this a year++ old device
I really see it as "out of date" and not prone to have FW upgrades
available. 
OTOH, I find it more alarming as the situation creates fs problems,
which actually happens when Windows is involved. (I have yet to see this
problem on Linux)
NOTE: I ALWAYS run it on batteries. (One round of batteries lasts all
from two weeks to 3 hours - depending on how intensely I use it. A three
hour sojourn gives me a full CD of images at least.)

> Then again, I know firsthand that Microsoft had USB Mass Storage pretty
> wildly wrong as late as the release of XP SP...2 I think, maybe 1, so who
> knows, could be MS's fault.

Might be so, wouldn't be a big surprise - I run this camera against 2k,
XP and Linux (cygwin involved on Wins).

OT -> END of THREAD.
/Hannu E K Nevalainen


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