gphoto2

[Rockinghorse Winner]

On Sun, Feb 05, 2012 at 10:28:25PM +0000, Patrick Dupre wrote:
> Hello,
> 
> With the version 16, as a user,
> 
>  gphoto2 -l
> 
> gives:
> 
> 
> *** Error ***
> An error occurred in the io-library ('I/O problem'): Could not open
> USB device (Permission denied).
> *** Error (-7: 'I/O problem') ***
> 
> For debugging messages, please use the --debug option.
> Debugging messages may help finding a solution to your problem.
> If you intend to send any error or debug messages to the gphoto
> developer mailing list <gphoto-devel at lists.sourceforge.net>, please run
> gphoto2 as follows:
> 
>     env LANG=C gphoto2 --debug --debug-logfile=my-logfile.txt -l
> 
> Please make sure there is sufficient quoting around the arguments.
> 
> while as root:
> 
> There is 1 folder in folder '/'.
>  - store_00010001
> There are 0 folders in folder '/store_00010001'.
> 
> 
> lsusb
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 001 Device 002: ID 413c:a005 Dell Computer Corp. Internal 2.0 Hub
> Bus 004 Device 002: ID 046d:c047 Logitech, Inc. Laser Mouse
> Bus 001 Device 004: ID 152d:2338 JMicron Technology Corp. / JMicron
> USA Technology Corp. JM20337 Hi-Speed USB to SATA & PATA Combo
> Bridge
> Bus 001 Device 013: ID 054c:004e Sony Corp. DSC-xxx (ptp)
> 
> 
> It looks like that there is a right issue.
> 
> running selinux in permissive mode does not help.
> 
> How can I fix this issue?
> Thank.
> 
> Regards.
> 
> 
> -- 
> ---
> ==========================================================================
>  Patrick DUPRÉ                      |   |
>  Department of Chemistry            |   |  Phone: (44)-(0)-1904-434384
>  The University of York             |   |  Fax:   (44)-(0)-1904-432516
>  Heslington                         |   |
>  York YO10 5DD  United Kingdom      |   |  email: patrick.dupre at york.ac.uk
> ==========================================================================


I don't know if this would help or not; I recently had a similar issue with
xsane - would not find my printer which was on a USB port. So I used lsusb
to find which bus/device the printer was on, then changed the permission to
a+w for the /dev/bus/usb/ device in question. Then, I was able to run xsane
as a normal user. HTH.

Terry