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Date:      Sun, 14 Sep 2014 10:03:30 +0300
From:      Andriy Gapon <avg@FreeBSD.org>
To:        Volodymyr Kostyrko <c.kworr@gmail.com>, freebsd-usb@FreeBSD.org
Subject:   Re: usb printer vs cups
Message-ID:  <54153DC2.1030505@FreeBSD.org>
In-Reply-To: <541353BF.5080608@b1t.name>
References:  <54133325.9070302@FreeBSD.org> <541353BF.5080608@b1t.name>

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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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