On 12/09/2014 23:12, Volodymyr Kostyrko wrote:
> On 12.09.2014 20:53, Andriy Gapon wrote:
>>  From my experience I think that cupsd executes backend tools with all uids 
>> and
>> gids set to cups and no supplementary groups.  In the case of USB printers 
>> the
>> backends need to access /dev/usbctl and /dev/usb/foobar that corresponds to a
>> printer.  That means that the access to those devices must be somehow 
>> granted to
>> cups:cups.
>> How do people solve this?  What kind of permissions / configuration do you 
>> use?
> devfs

Yes, devfs.  So how exactly do you configure permissions, ownerships?

>> P.S.
>> Maybe I over-generalized the issue to all USB printers.  My personal 
>> experience
>> is with an HP printer handled by hplip / hplip-plugin.
> Personally I prefer using stock lpd for those, it can be easily integrated 
> with
> foomatic hpijs.

Andriy Gapon
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