Could not claim the USB device?

[David Armour]

Mitch Contla <mcontla <at> gmail.com> writes:
> On 4/4/07, Matthew Flaschen <matthew.flaschen <at> gatech.edu> wrote:
> David Armour wrote:> Hello list!>> This evening while trying to download
pictures from a Canon Powershot> A510, I got this:>> An error occurred in the
io-library ('Could not claim the USB device'):
> >> Using a fully up-to-date Edgy (just this afternoon), which has never had>
any difficulty downloading pictures before. Any ideas, thoughts,>
recommendations greatly appreciated.
> Why don't you search the archives?!  Someone posted about that
 just 10
> MINUTES AGO!! ;)  Anyway, might want to head over to "Strange 
udevcamera
problem and solution?". :)Matt Flaschen--ubuntu-users mailing 
list
> These two bug reports helped me:
> https://bugs.launchpad.net/ubuntu/+source/libgphoto2/+bug/91063
> https://bugs.launchpad.net/ubuntu/+source/libgphoto2/+bug/91250
-- Mitch
> <br><br>These two bug reports helped me:
> <br><br><a
href="https://bugs.launchpad.net/ubuntu/+source/libgphoto2/+bug/
91063"
target="_blank" onclick="return
top.js.OpenExtLink(window,event,this)">https://bugs.launchpad.
net/ubuntu/+source/libgphoto2/+bug/91063</a>
> <br><a href="https://bugs.launchpad.net/ubuntu/+source/lib
gphoto2/+bug/91250"
target="_blank" onclick="return top.js.OpenExtLink(window,
event,this)">
> https://bugs.launchpad.net/ubuntu/+source/libgphoto2/+bug/
91250</a><br><br>--
<br>Mitch<br><br>
> </div>

Hello Matt & Mitch

Thank you for your replies. I have followed the links you 
provided and have
managed to get my pictures downloaded. Of the two links, 
the information
provided at the end of the second link was the latter of 
the two options
recommended. I'm including the information in the hope 
that it makes someone
else's life easier. 

Martin Pitt said on 2007-04-04:  (permalink)

So, summary of Edgy situation:

- Original Edgy uses the old rules with BUS (but if BUS 
is broken, then the
structure of the rules would ignore that).
- The original backport 2.3.0-0ubuntu3~edgy1 used udev-
rules-0.98 which broke
for many people
- The manual version 2.3.0-0ubuntu3~edgy2 uploaded by 
Colin (bug 90724) used
udev-rules which apparently fixed it for some people
- The latest backport 2.3.0-0ubuntu4~edgy1 also uses udev
-rules, and now it is
apparently broken again for some people.

So please do the following:

  - Confirm that you use standard Edgy udev
  - Do

      /usr/lib/libgphoto2/print-camera-list udev-rules 
mode 0660 group plugdev |
sudo tee /etc/udev/rules.d/45-libgphoto2.rules

    and test whether it works with your camera

  - Do

     /usr/lib/libgphoto2/print-camera-list udev-rules-0.98 
mode 0660 group
plugdev | sudo tee /etc/udev/rules.d/45-libgphoto2.rules

  and test whether it works with your camera


I confess I have had limited success searching the archives
 -- not sure what I'm
doing wrong -- but I guess I didn't expect a solution to 
have developed as
quickly as it appears to have. Anyway, thanks again for 
your recommendations. My
life has been improved!