[CentOS] gphoto2 and Nikon Coolpix 990/995

Akemi Yagi amyagi at gmail.com
Fri Mar 26 19:10:42 UTC 2010

On Fri, Mar 26, 2010 at 11:53 AM, Boris Epstein <borepstein at gmail.com> wrote:
> Hi all,
> I've got a CentOS 5.4 box and am trying to use it to control  either
> of the two old cameras we've got, one being Nikon Coolpix 990 and the
> other Nikon Coolpix 995. Accessing either I get the following message:
> ----------------------------------------------------
> *** Error ***
> An error occurred in the io-library ('Could not claim the USB
> device'): Could not claim interface 0 (Operation not permitted). Make
> sure no other program or kernel module (such as sdc2xx, stv680,
> spca50x) is using the device and you have read/write access to the
> device.
> ERROR: Could not capture.
> *** Error (-53: 'Could not claim the USB device') ***
> ----------------------------------------------------
> Any idea what this could be about?
> By the way, about a year ago I did manage to use a Linux machine to
> control one of these cameras (the 990, I believe).

Is the camera set to the PTP mode?  Try running 'tail -f
/var/log/messages' while connecting the camera and see how it is being


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