http://bugzilla.novell.com/show_bug.cgi?id=594812 http://bugzilla.novell.com/show_bug.cgi?id=594812#c1 Vincent Untz changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |jsmeix@novell.com --- Comment #1 from Vincent Untz 2010-04-08 15:22:39 UTC --- Isn't this happening because of: hp[23174]: io/hpmud/musb.c 2007: invalid usb_open: Permission denied which sounds unrelated to udev-configure-printer? -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=594812 http://bugzilla.novell.com/show_bug.cgi?id=594812#c3 --- Comment #3 from Johannes Meixner 2010-04-08 17:06:10 UTC --- Vincent, do you know if udev-configure-printer uses the "hp" backend on other systems so that this issue could be an exceptional case? I changed /etc/udev/rules.d/70-printers.rules so that it executes --------------------------------------------------------------------------- .. RUN+="/bin/sh -c 'sleep 60 ; /lib/udev/udev-configure-printer add %p'" --------------------------------------------------------------------------- to avoid a possible race condition. Furthermore I used the one minute sleep to set read/write permissions for any user: --------------------------------------------------------------------------- # lsusb | grep LaserJet Bus 004 Device 007: ID 03f0:0417 Hewlett-Packard LaserJet 1200 series # ls -l /dev/bus/usb/004/007 crw-rw-rw- 1 root lp 189, 390 2010-04-08 18:39 /dev/bus/usb/004/007 --------------------------------------------------------------------------- Nevertheless the udev-configure-printer queue is still the same and I get the same strange "io/hpmud/musb.c 2007: invalid usb_open: Permission denied" errors in /var/log/messages According to the "ps auxw" what /etc/udev/rules.d/70-printers.rules actually runs is (one line wrapped here): ---------------------------------------------------------------------- /bin/sh -c sleep 60 ; /lib/udev/udev-configure-printer add /devices/pci0000:00/0000:00:1a.1/usb4/4-2/4-2:1.0/usb/lp0 ---------------------------------------------------------------------- I don't know what this exactly means but what looks suspicious from my unaware point of view is the "/usb/lp0" addendum because "/usb/lp0" matches to the usblp kernel module which is still used by our CUPS "usb" backend while the "hp" backend uses the usbfs/libusb kernel module. This might - again from my unaware point of view - also explain why io/hpmud/musb.c gets an invalid usb_open when the usblp driver is already using the device so that the usbfs/libusb driver can no longer access the device - there is also a "udev-configure-printer: failed to claim interface" message (compare bug #184825) - but this is just a blind guess... It seems udev-configure-printer does USB printer detection on its own which would be wrong because to work in compliance to CUPS it should use CUPS' printer detection, i.e. run "lpinfo -l -v" or equivalent CUPS library calls, compare http://en.opensuse.org/YaST/Development/Printer_Enhancement "Strict Compliance With CUPS". -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=594812 http://bugzilla.novell.com/show_bug.cgi?id=594812#c6 Johannes Meixner changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|Normal |Minor --- Comment #6 from Johannes Meixner 2010-04-09 07:15:40 UTC --- Therein is ----------------------------------------------------------------------- 86 /* Device URI schemes in decreasing order of preference. */ 87 static const char *device_uri_types[] = 88 { 89 "hp", 90 "usb", 91 }; ----------------------------------------------------------------------- which shows that it should prefer the "hp" backend but for whatever special reason it fails at least in my particular case... -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=594812 http://bugzilla.novell.com/show_bug.cgi?id=594812#c8 Johannes Meixner changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |WONTFIX Summary|udev-configure-printer uses |udev-configure-printer uses |"usb/..." device URI for HP |"usb/..." device URI for |printers |particular HP printer | |model(s) --- Comment #8 from Johannes Meixner 2010-06-18 14:29:18 UTC --- Because it is model dependant, I assume it works o.k. in very most cases and therefore I like to close the issue as "wontfix" - at least for now unless we get several such bug reports from customers. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.