[gentoo-user] hal greps my USB printer - help !

[gentoo-user] hal greps my USB printer - help !

[Helmut Jarausch]

Hi,

on one of my identical (believed) machines,
hal greps the USB printer and disables CUPS.

I.e. on one machine hal-device | grep -i kyocera
shows that hal has grepped it.
On an identical machine (with a HP printer)
hal_device shows nothing relevant to that printer
and CUPS is working on that machine when printing to
that printer.

How can I stop hal grepping the printer or how can I
make hal cooperative with cups (1.4.1)

Many thanks,
Helmut.

-- 
Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany

[gentoo-user] Re: hal greps my USB printer - help !

[walt]

On 10/29/2009 08:11 AM, Helmut Jarausch wrote:
> Hi,
> 
> on one of my identical (believed) machines,
> hal greps the USB printer and disables CUPS...

Could you be more specific about 'disables'?   I use an HP
USB printer on a machine running cupsd and hal, and it works
perfectly:

printer.originating_device = '/org/freedesktop/Hal/devices/usb_device_3f0_1617_00CNBM369103_if0'  (string)
printer.vendor = 'Hewlett-Packard'  (string)
printer.product = 'hp LaserJet 3015'  (string)

I think the problem must be something besides hal, but what?

Is cups really running on the  problem machine?  Can you talk
to cupsd using your web browser at http://localhost:631?  If
yes, does the printer show up in the list of known printers?
If not, can you add it to the list of known printers?

[gentoo-user] Whose bug is it? [was: hal greps my USB printer - help !]

[Helmut Jarausch]

After a long search on the net I've found out
that the permissions of the usb device are set wrong
(root.usb)
It looks like an UDEV rule installed by sane-backends
sets the user to root and the group to usb.
With these settings CUPS won't recognize/use the printer.

I had to add the following rule to /etc/udev/rules.d/10-local.rules
(e.g.)

ATTR{idVendor}=="0482", ATTR{idProduct}=="0015", MODE:="0777",
  GROUP:="lp", USER:="lp", ENV{libsane_matched}:="yes"

where one has to vary the idVendor and idProduct, of course.

Even for a casual Gentoo user that's neither trivial nor comfortable.
If the printer breaks sometime one has to remember to change that rule.
And it wasn't easy to find that advice.

Where should I report a bug to ?
To
net-print/cups
or
media-gfx/sane-backends
or where else?

Thanks for your help,
Helmut.


-- 
Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany

Re: [gentoo-user] Whose bug is it? [was: hal greps my USB printer - help !]

[Helmut Jarausch]

On 30 Oct, Helmut Jarausch wrote:
> After a long search on the net I've found out
> that the permissions of the usb device are set wrong
> (root.usb)
> It looks like an UDEV rule installed by sane-backends
> sets the user to root and the group to usb.
> With these settings CUPS won't recognize/use the printer.
> 
> I had to add the following rule to /etc/udev/rules.d/10-local.rules
> (e.g.)
> 
> ATTR{idVendor}=="0482", ATTR{idProduct}=="0015", MODE:="0777",
>   GROUP:="lp", USER:="lp", ENV{libsane_matched}:="yes"

this must be     OWNER:="lp"
of course.

> 
> where one has to vary the idVendor and idProduct, of course.
> 
> Even for a casual Gentoo user that's neither trivial nor comfortable.
> If the printer breaks sometime one has to remember to change that rule.
> And it wasn't easy to find that advice.
> 
> Where should I report a bug to ?
> To
> net-print/cups
> or
> media-gfx/sane-backends
> or where else?
> 
> Thanks for your help,
> Helmut.
> 
> 

-- 
Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany

Re: [gentoo-user] Whose bug is it? [was: hal greps my USB printer - help !]

[James Ausmus]

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On Fri, Oct 30, 2009 at 5:16 AM, Helmut Jarausch <
jarausch@igpm.rwth-aachen.de> wrote:

> After a long search on the net I've found out
> that the permissions of the usb device are set wrong
> (root.usb)
> It looks like an UDEV rule installed by sane-backends
> sets the user to root and the group to usb.
> With these settings CUPS won't recognize/use the printer.
>
> I had to add the following rule to /etc/udev/rules.d/10-local.rules
> (e.g.)
>
> ATTR{idVendor}=="0482", ATTR{idProduct}=="0015", MODE:="0777",
>  GROUP:="lp", USER:="lp", ENV{libsane_matched}:="yes"
>
> where one has to vary the idVendor and idProduct, of course.
>
> Even for a casual Gentoo user that's neither trivial nor comfortable.
> If the printer breaks sometime one has to remember to change that rule.
> And it wasn't easy to find that advice.
>
> Where should I report a bug to ?
> To
> net-print/cups
> or
> media-gfx/sane-backends
> or where else?
>

Hmm, I'm not entirely convinced there is a bug here... I don't have your
particular situation, but on my system, cupsd runs as root, which means that
it should be able to access the device just fine, whether it's set up as lp
or usb. Is it possible that the user that you are logged in as isn't a
member of the "usb" group?

-James



>
> Thanks for your help,
> Helmut.
>
>
> --
> Helmut Jarausch
>
> Lehrstuhl fuer Numerische Mathematik
> RWTH - Aachen University
> D 52056 Aachen, Germany
>
>

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