Re: PTP camera, setting rights does not work
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On 04/06/08 18:30, Anton Pussep wrote:
> Ron Johnson wrote:
>> On 04/06/08 16:31, Anton Pussep wrote:
>>> Ron Johnson wrote:
>>>> On 04/06/08 13:43, Anton Pussep wrote:
>>>>> I experience difficulties to access my PTP camera as non-root. The
>>>>> camera is a Canon A580, that supports PTP via USB very well. I can
>>>>> access the camera as root, but not as a local user.
>>>>> Using the gphoto manual
>>>>> (http://www.gphoto.org/doc/manual/permissions-usb.html) I tried to
>>>>> make
>>>>> hotplug and HAL set permissions, but it did not work. For hotplug I
>>>>> created a usbcam.usermap and a usbcam script, but the script does not
>>>>> get executed. After that I tried HAL, but it seems like there is no
>>>>> policy file for gphoto.
>>>>> I don't know how to proceed in this problem, may be someone else
>>>>> has an
>>>>> idea? Who should be responsible for setting rights in general, hotplug
>>>>> or HAL? Why isn't there a policy file for gphoto, when there is an
>>>>> information file?
>>>> Add yourself to the camera and plugdev groups.
>>> There is no group "camera" in my system. I added myself to the group
>>> "plugdev", however, but it did not help.
>>
>> Then you need to create it. BTW, what branch are you running?
>
> I did, but it didn't help. I still couldn't find any file that refers to
> the "camera" group. I am running Debian lenny (testing), last upgraded
> on 6th of April 2008.
>
>>> My main question is where are the permissions set? They are not
>>> hardcoded or set magically I guess, there must be a script that is
>>> responsible for doing so.
>>
>> By udev.
>
> Okay, there is a file /etc/udev/libgphoto2.rules, it only mentions the
> "plugdev" group. But even though my user is in that group (and also
> "camera"), it still does not work.
Here's a thought: did you log all the way out after adding yourself
to that group?
> So which devices group is supposed to be set to "plugdev" or "camera",
> anyway? dmesg output says:
>
> usb 2-10: new high speed USB device using ehci_hcd and address 4
> usb 2-10: configuration #1 chosen from 1 choice
>
> But this doesn't really help.
Does it or /var/log/syslog indicate anything else?
- --
Ron Johnson, Jr.
Jefferson LA USA
We want... a Shrubbery!!
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