On Mon, 04 Feb 2008 22:49:07 +0100, Andras Simon wrote:
> On 2/4/08, Bob Goodwin <bobgoodwin@xxxxxxxxxxxx> wrote:
>>
>> gphoto2 is giving me the following error messages. I used it a few
>> days ago with a different camera and it worked without a hitch.
>>
>> gphoto2 --auto-detect
>> Model
>> Port
>> ---------------------------------------------------------- USB
>> PTP Class Camera usb:
>> USB PTP Class Camera usb:005,008 [root@box6 ~]#
>> gphoto2 --list-files
>>
>>
>> *** Error ***
>> PTP I/O error
>>
>> *** Error ***
>> An error occurred in the io-library ('Unspecified error'): The
>> supplied vendor or product id (0x0,0x0) is not valid. *** Error
>> (-1: 'Unspecified error') ***
>>
>> 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@xxxxxxxxxxxxxxxxxxxxx>,
>> please run
>> gphoto2 as follows:
>>
>> env LANG=C gphoto2 --debug --debug-logfile=my-logfile.txt
>> --list-files
>>
>> Please make sure there is sufficient quoting around the
>> arguments.
>>
>>
>>
>>
>> gphoto2 --get-all-files
>>
>>
>> *** Error ***
>> PTP I/O error
>>
>> *** Error ***
>> An error occurred in the io-library ('Unspecified error'):
>> Could not query kernel driver of device.
>> *** Error (-1: 'Unspecified error') ***
>>
>> 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@xxxxxxxxxxxxxxxxxxxxx>,
>> please run
>> gphoto2 as follows:
>>
>> env LANG=C gphoto2 --debug --debug-logfile=my-logfile.txt
>> --get-all-files
>>
>> Please make sure there is sufficient quoting around the
>> arguments.
>>
>> Man gphoto2 is not much help or perhaps beyond my comprehension.
>>
>> Any suggestions appreciated.
>
> I ran into the same problem a few days ago and got around it by starting
> gphoto2 as root. I know it's only a temporary solution, but I hope it
> works for you, too.
>
> Andras
I have the same problem. I found a fix that worked, then probably after
one of the updates or for whatever reason it didn't work anymore. Here's
the fix anyway:
You must have a file /etc/udev/rules.d/90-libgphoto2.rules
To create one, as root
cd /usr/lib/libgphoto2
./print-camera-list udev-rules version 0.98 mode 666 owner root group
users > /etc/udev/rules.d/90-libgphoto2.rules # one line.
This used to work. Now, however, it doesn't anymore. I guess a system can
use one of several methods for hot-plug devices, and the fix above is for
udev. If I run gthumb-import manually at the prompt, I get this error
message:
process 2809: arguments to dbus_message_new_method_call() were incorrect,
assertion "_dbus_check_is_valid_path (path)" failed in file dbus-
message.c line 1074.
This is normally a bug in some application using the D-Bus library.
D-Bus not built with -rdynamic so unable to print a backtrace
which I is about D-Bus, or maybe it's a problem with gthumb-import using
D-Bus. I don't pretend to understand how D-Bus works, and how it
interacts with udev, but perhaps the fix should be related to d-bus.
Maybe someone can shed some light here.
