Bug#630402: libhpmud0: Multi-function printers need their own group
Package: libhpmud0
Version: 3.10.6-2
Severity: normal
Hi,
Some (many? most?) multi-function usb printers, those that both scan
and print and perhaps do something else expose only a single usb
device. Therefore when udev rules assign permissions to the device
based on function the alternate functionalities become unavailable.
Right now /lib/udev/rules.d/91-permissions.rules is assigning my
Seiko Epson Corp. Stylus CX3700/CX3800/DX3800 usb printer/scanner
to the lp group and thereby making the scanner unavailable to the
saned daemon for network based scanning. I believe I would have the
same problem with /lib/udev/rules.d/40-hplip.rules.
I believe the right solution is to create a new group (say, an 'mfp'
group) for such multi-function devices and give the relavant daemons
membership in this group. This is the only way I can see to avoid
conflicts. The lameness of the hardware is not going to go away and
the current situation is clearly causing problems. (See bugs #581254
and #529621.)
I will update this bug with bug numbers filed against the udev and
libhpmud0 packges.
-- System Information:
Debian Release: 6.0.1
APT prefers stable
APT policy: (500, 'stable')
Architecture: i386 (i686)
Kernel: Linux 2.6.32-5-686 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages libhpmud0 depends on:
ii libc6 2.11.2-10 Embedded GNU C Library: Shared lib
ii libsnmp15 5.4.3~dfsg-2 SNMP (Simple Network Management Pr
ii libssl0.9.8 0.9.8o-4squeeze1 SSL shared libraries
ii libusb-0.1-4 2:0.1.12-16 userspace USB programming library
libhpmud0 recommends no packages.
libhpmud0 suggests no packages.
-- no debconf information
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