unable to download pictures from my Canon PowerShot A520 as a normal user

adityavpratap · 05-19-2006, 09:15 AM

Hi,
1) I am unable to download pictures from my Canon Powershot A520 digital camera using digikam as a normal user.
2) Secondly, when I use digikam as root by doing sudo digikam, digikam crashes when I click "download selected" after "select new". (I hope I am making my self clear) Here is the output I get on konsole -

Quote:

aditya@Hostname:~$ sudo digikam
Error: "/var/tmp/kdecache-aditya" is owned by uid 1000 instead of uid 0.
Link points to "/var/tmp/kdecache-root"
digikam: Album libray path set to /home/aditya/Pictures/digikam.db
digikam: ImagePlugin_Core plugin loaded
digikam: ImagePluginLoader: Loaded plugin ImagePlugin_Core
Error: "/tmp/ksocket-aditya" is owned by uid 1000 instead of uid 0.
Link points to "/tmp/ksocket-root"
kio_digikamthumbnail: *** Starting kio_digikamthumbnail
Error: "/var/tmp/kdecache-aditya" is owned by uid 1000 instead of uid 0.
Link points to "/var/tmp/kdecache-root"
kio_digikamthumbnail: *** Starting kio_digikamthumbnail
Error: "/var/tmp/kdecache-aditya" is owned by uid 1000 instead of uid 0.
Link points to "/var/tmp/kdecache-root"
digikam: listing file:///home/aditya/Pictures/2006, May, 19
Killed
aditya@Hostname:~$ kio_digikamthumbnail: *** kio_digikamthumbnail Done
kio_digikamthumbnail: *** kio_digikamthumbnail Done

1000 is my user uid and 0 ofcourse is root uid.
Here is the listing of /etc/hotplug/usb/usbcam

Quote:

#!/bin/bash
# $Id: usbcam.group,v 1.3 2003/09/16 16:42:44 hun Exp $
#
# /etc/hotplug/usb/usbcam
#
# Sets up newly plugged in USB camera so that only members of the
# group

GROUP=camera

# can access it from user space. (Replace camera with the name of the
# group you want to have access to the cameras.)
#
# Note that for this script to work, you'll need all of the following:
# a) a line in the file /etc/hotplug/usermap that corresponds to the
# camera you are using. You can get the correct lines for all cameras
# supported by libgphoto2 by running "print-usb-usermap".
# b) a group "camera" where all users allowed access to the
# camera are listed
# c) a Linux kernel supporting hotplug and usbdevfs
# d) the hotplug package (http://linux-hotplug.sourceforge.net/)
#
# In the usermap file, the first field "usb module" should be named
# "usbcam" like this script.
#

if [ "${ACTION}" = "add" ] && [ -f "${DEVICE}" ]
then
chmod o-rwx "${DEVICE}"
chgrp "${GROUP}" "${DEVICE}"
chmod g+rw "${DEVICE}"
fi

My user (aditya) is added to the group "camera".
The camera is detected correctly and I can save the pictures by clicking on them in the picture list that comes up when I select my camera from the camera menu in digikam. When the required is displayed I can save it from File -> Save.
Eagerly awaiting replies.

egag · 05-19-2006, 09:48 AM

no probs here.
did you follow these guidelines (http://www.gphoto.org/doc/manual/permissions-usb.html)
to produce the file /etc/hotplug/usb/usbcam.usermap ?

if so, the only diff. is that i set the group in the above file to "users".
( didn't make a "camera" group ).

egag

adityavpratap · 05-19-2006, 10:53 PM

Thank you for the prompt reply.

Hereis the listing of my /etc/hotplug/usb/usbcam -

Quote:

#!/bin/bash
# $Id: usbcam.user,v 1.3 2003/09/16 16:42:44 hun Exp $
#
# /etc/hotplug/usb/usbcam
#
# Sets up newly plugged in USB camera so that just one certain user

USER=aditya

# can access it from user space. (Replace root with the user you want
# to have access to the cameras.)
#
# Note that for this script to work, you'll need all of the following:
# a) a line in the file /etc/hotplug/usermap that corresponds to the
# camera you are using. You can get the correct lines for all cameras
# supported by libgphoto2 by running "print-usb-usermap".
# b) run your camera software as the user given above
# c) a Linux kernel supporting hotplug and usbdevfs
# d) the hotplug package (http://linux-hotplug.sourceforge.net/)
#
# In the usermap file, the first field "usb module" should be named
# "usbcam" like this script.
#

if [ "${ACTION}" = "add" ] && [ -f "${DEVICE}" ]
then
chmod a-rwx "${DEVICE}"
chown "${USER}" "${DEVICE}"
chmod u+rw "${DEVICE}"
fi

where "aditya" is the user to which I want to give digikam permission.

Now when I do -

$ digikam &

and select my camera, the images stored in it are listed. But when I select the ones to dowload and select the appropriate folder for downloading the images into, and press OK, digikam crashes with the following output in the konsole -

Quote:

digikam: Album libray path set to /home/aditya/Pictures/digikam.db
digikam: ImagePlugin_Core plugin loaded
digikam: ImagePluginLoader: Loaded plugin ImagePlugin_Core
digikam: listing file:///home/aditya/Pictures/2006, May, 19
Killed

Any idea what is happening?

adityavpratap · 05-19-2006, 10:59 PM

and one more thing. My camera is Canon Powershot A520 but digikam autodetects it as Canon IXUS 50.

egag · 05-20-2006, 09:47 AM

to be sure: when the program crashes, your cam. is selected as canon-psa520 ?
( ...or as the wrong ixus50...)
ixus 50 can be used in two modes (ptp and normal; psa520 is ptp-only).

did you compile digikam on your pc or did you get a package ?

i can't say anything on the output when it crashes.
run it as "digikam --nocrashandler" to get more info on the crashing.

egag