I had the same problem with a Canon Powershot G7
This was fixed in the same was as the previous posts:
lsusb ouput:
Bus 005 Device 004: ID 04a9:3125 Canon, Inc.
Added this line to /etc/udev/rules.d/45-libgphoto2.rules
SYSFS{idVendor}=="04a9", SYSFS{idProduct}=="3125", MODE="0660", GROUP="plugdev"
and restarted udev - this has been documented well in the comments above.
I had the same problem with a Canon Powershot G7
This was fixed in the same was as the previous posts:
lsusb ouput:
Bus 005 Device 004: ID 04a9:3125 Canon, Inc.
Added this line to /etc/udev/ rules.d/ 45-libgphoto2. rules =="04a9" , SYSFS{idProduct }=="3125" , MODE="0660", GROUP="plugdev"
SYSFS{idVendor}
and restarted udev - this has been documented well in the comments above.
Now everything works peachy.