[Hplip-help] HP-Toolbox as non-root on CentOS 4.5

Suffield, David

2007-10-31 20:02:43 UTC

Thanks for the feedback about CentOS 4.5. Your log file does look like a
udev permissions issue. We don't normally test CentOS, but we will look
into it.

Post by Mike LaPlante
On a side note I manually chmod'd /dev/usb/lp0 to 0666 but
that doesn't seem to help the communication error I get when
running hp-toolbox.

The chmod is a valid temporary fix, but HPLIP does not use /dev/usb/lp0.
HPLIP uses /dev/bus/usb/bbb/ddd instead. Use lsusb to determine bbb/ddd
(ie: bus:device).

-dave

Post by Mike LaPlante
-----Original Message-----
Of Mike LaPlante
Sent: Wednesday, October 31, 2007 10:03 AM
Subject: [Hplip-help] HP-Toolbox as non-root on CentOS 4.5
I do help desk support for several retail stores that run CentOS 4.5.
The current printer I'm working on is a Photosmart C4200, but
each store has a different printer and I run into this same
issue with all locations.
Basically I have been install hplip-2.7.10 via the tarball
then running hp-setup as root and setting up the new printer.
This all works and the users can print to the printers just
fine. However, if I try to run hp-toolbox as a standard user I get
hp:/usb/Photosmart_C4200_series?serial=MY71RCQ06B04VP".
Everything works if I run as root but nothing works as user
(aside from basic printing).
I enabled logging in the udev.conf and I see this in
------------------------
Oct 31 11:03:08 cs24 kernel: usb 1-3: new high speed USB
device using address 2 Oct 31 11:03:09 cs24 udev[8595]: parse
error /etc/udev/rules.d/55-hpmud.rules, line 3:13, rule
skipped Oct 31 11:03:09 cs24 udev[8595]: parse error
/etc/udev/rules.d/55-hpmud.rules, line 4:0, rule skipped Oct
31 11:03:09 cs24 udev[8595]: parse error
/etc/udev/rules.d/55-hpmud.rules, line 5:0, rule skipped Oct
31 11:03:09 cs24 udev[8595]: parse error
/etc/udev/rules.d/55-hpmud.rules, line 6:23, rule skipped Oct
31 11:03:09 cs24 udev[8595]: parse error
/etc/udev/rules.d/55-hpmud.rules, line 8:16, rule skipped Oct
31 11:03:09 cs24 udev[8595]: parse error
/etc/udev/rules.d/55-hpmud.rules, line 11:0, rule skipped Oct
31 11:03:09 cs24 udev[8595]: parse error
/etc/udev/rules.d/55-hpmud.rules, line 13:0, rule skipped Oct
31 11:03:09 cs24 udev[8595]: parse error
/etc/udev/rules.d/55-hpmud.rules, line 15:0, rule skipped Oct
31 11:03:09 cs24 udev[8595]: parse error
/etc/udev/rules.d/55-hpmud.rules, line 17:0, rule skipped Oct
31 11:03:09 cs24 udev[8595]: parse error
/etc/udev/rules.d/55-hpmud.rules, line 19:0, rule skipped Oct
31 11:03:09 cs24 udev[8595]: parse error
/etc/udev/rules.d/55-hpmud.rules, line 21:23, rule skipped
Oct 31 11:03:09 cs24 udev[8595]: configured rule in
'/etc/udev/rules.d/50-udev.rules' at line 31 applied, added
symlink 'par%n'
usblp0: USB Bidirectional printer dev 2 if 1 alt 0 proto 2
configured rule in '/etc/udev/rules.d/50-udev.rules' at line
32 applied, 'lp0' becomes 'usb/%k'
Oct 31 11:03:11 cs24 kernel: usbcore: registered new driver
usblp Oct 31 11:03:11 cs24 udev[8595]: creating device node
'/dev/usb/lp0'
--------------------------
So it looks to me like CentOS is not liking the hplip
supplied udev rules and pretty much ignoring them. And it
seems to be a simple syntax parsing error, but I've been
tinkering for hours and can't get it working.
On a side note I manually chmod'd /dev/usb/lp0 to 0666 but
that doesn't seem to help the communication error I get when
running hp-toolbox.
Looking for suggestions, please CC me since I'm not
subscribed directly to the list.
Thanks
Mike
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