Permissions to access USB camera under debian

[E.S. Rosenberg]

2013/7/2 Evgeniy Ginzburg <nad.oby at gmail.com>:
> ls /dev/ before and after connecting camera let you determine which /dev/
> nodes are creared.
*if* device nodes are created...
> ls -l /dev/something gives you user and group this device node created
> under.
> id [username] gives you in which groups this user enlisted.
> Add this user to group that have read/write access to node.
> If unfortunately device node under root:root you'll have to mess with udev
> rules.
I would go with the suggestion above on udev rules, if your kernel has
drivers for the device, some automagically generated rules may already
exist, on Debian that would be /etc/udev/rules.d/
As a quick and dirty fix you can of course just run chmod a+rw on the
device node.
Also tail syslog while connecting/disconnecting the device and maybe
also during the access attempt there's a wealth of good info there.

HTH,
Eliyahu - אליהו
>
> Regards, Evgeniy.
>
> On Jul 2, 2013 8:09 PM, "Micha Feigin" <michf at post.tau.ac.il> wrote:
>>
>> Hi All,
>>
>> I'm trying to connect a camera (Mesa Imaging Swissranger specifically) to
>> a Debian unstable box. I'm getting an error that the user does not have
>> permissions to open the USB device (needs read/write access). Couldn't find
>> any relevant group to add my user to to solve the problem. Any idea as to
>> how to grant access?
>>
>> I've manged to get some information when running as sudo although it still
>> was a bit problematic, and I'd rather explore the issue as a regular user
>> and not root.
>>
>> Thanks
>>
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