Incorrect permissions for printer devices

[samefab]

after breezy dist-upgrade my printer "SAMSUNG ML-1710P" is no more recognized by
ubuntu.
I'm getting the following message "printer-stopped" when I'm trying to print any
doc.
No way to put in order the printer.

[samefab (fabien-delhaye)]

seems to be a permission problem : printer work after "chmod 777 /dev/usb/lp0"

[Matt Zimmerman (mdz)]

Confirmed here, and by others as well on IRC.

[Matt Zimmerman (mdz)]

Analysis so far:

The new version of udev no longer seems to set permissions based on the device
path (/etc/udev/permissions.d/udev.permissions seems to be ignored now), and
rather sets them based on the attributes of the hotplug event
(/etc/udev/udev.permissions.rules). The old rule was:

usb/lp[0-9]*:root:lp:0660

but now it uses:

SUBSYSTEM="printer", GROUP="lp"

However, when I connect my printer, the events that are generated all have
SUBSYSTEM=usb; there is no SUBSYSTEM=printer event.

udevsend.env.7591:SUBSYSTEM=usb
udevsend.env.7591:DEVPATH=/devices/pci0000:00/0000:00:07.2/usb1/1-2/1-2.1/1-2.1.3/1-2.1.3.4/1-2.1.3.4.3
udevsend.env.7594:SUBSYSTEM=usb
udevsend.env.7594:DEVPATH=/devices/pci0000:00/0000:00:07.2/usb1/1-2/1-2.1/1-2.1.3/1-2.1.3.4/1-2.1.3.4.3/1-2.1.3.4.3:1.0
udevsend.env.7596:SUBSYSTEM=usb
udevsend.env.7596:DEVPATH=/devices/pci0000:00/0000:00:07.2/usb1/1-2/1-2.1/1-2.1.3/1-2.1.3.4/1-2.1.3.4.3/1-2.1.3.4.3:1.1
udevsend.env.7600:SUBSYSTEM=usb
udevsend.env.7600:DEVPATH=/class/usb/lp0
udevsend.env.7602:SUBSYSTEM=usb
udevsend.env.7602:DEVPATH=/devices/pci0000:00/0000:00:07.2/usb1/1-2/1-2.1/1-2.1.3/1-2.1.3.4/1-2.1.3.4.3/1-2.1.3.4.3:1.2

It seems that only parallel printers get SUBSYSTEM=printer.

[Matt Zimmerman (mdz)]

*** Bug 16339 has been marked as a duplicate of this bug. ***

[Jeff Bailey (jbailey)]

Fixed in 0.056-2ubuntu2, please reopen the bug if you have any further troubles!

Tks,
Jeff Bailey