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.
> 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 > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf > Of Mike LaPlante > Sent: Wednesday, October 31, 2007 10:03 AM > To: hplip-help@lists.sourceforge.net > 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 > > "Unable to communicate with device (code=12): > 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 > /var/log/messages when I plug the USB cable: > ------------------------ > 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' > Oct 31 11:03:10 cs24 kernel: drivers/usb/class/usblp.c: > usblp0: USB Bidirectional printer dev 2 if 1 alt 0 proto 2 > vid 0x03F0 pid 0x5C11 Oct 31 11:03:10 cs24 udev[8595]: > 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 > > -------------------------------------------------------------- > ----------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and > a browser. > Download your FREE copy of Splunk now >> > http://get.splunk.com/ _______________________________________________ > HPLIP-Help mailing list > HPLIP-Help@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/hplip-help > ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ HPLIP-Help mailing list HPLIP-Help@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hplip-help
