On 1/17/2012 23:27, Till Kamppeter wrote: > Note that the URI has changed with my new patch. It must be something > like > > usb://Unknown/Printer > > or > > usb://Unknown/Printer?serial=... > > Printer setup tools should show the model simply as "Unknown". At least > system-config-printer does so. http://localhost:631/ (CUPS web > interface) should do so, too. > > Please have the printer connected and turned on, preferably connect the > parallel port at the printer before connecting the USB port at the > computer. Have the printer turned on when connecting the USB. Then run > the following commands in a terminal window: > > sudo rmmod usblp > lsusb > ls -l /dev/bus/usb/*/* > ls -l /dev/usb/lp* > sudo /usr/lib/cups/backend/usb > ldd /usr/lib/cups/backend/usb | grep usb > lpinfo -v > sudo modprobe usblp > lsmod | grep usb > sudo usb_printerid /dev/usb/lp0 > sudo rmmod usblp > > Post the output here. For info - the printer is powered, connected, and ready to go prior to system boot. Attached is the response to the above set of queries from the Ubuntu 11.10 system with the ~ppa CUPS version. The responses below are from the proposed Ubuntu7 CUPS version; also Ubuntu 11.10 on a different external drive; same HP 6600f computer. ------------------- w8@w8u-iomega:~$ sudo rmmod usblp ERROR: Module usblp does not exist in /proc/modules
w8@w8u-iomega:~$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 04b4:6830 Cypress Semiconductor Corp. CY7C68300A EZ-USB AT2 USB 2.0 to ATA/ATAPI Bus 001 Device 003: ID 058f:6377 Alcor Micro Corp. Multimedia Card Reader Bus 002 Device 002: ID 050d:0002 Belkin Components w8@w8u-iomega:~$ ls -l /dev/bus/usb/*/* crw-rw-r-- 1 root root 189, 0 2012-01-18 10:09 /dev/bus/usb/001/001 crw-rw-r-- 1 root root 189, 1 2012-01-18 10:09 /dev/bus/usb/001/002 crw-rw-r-- 1 root root 189, 2 2012-01-18 10:09 /dev/bus/usb/001/003 crw-rw-r-- 1 root root 189, 128 2012-01-18 10:09 /dev/bus/usb/002/001 crw-rw-r-- 1 root lp 189, 129 2012-01-18 10:09 /dev/bus/usb/002/002 w8@w8u-iomega:~$ ls -l /dev/usb/lp* ls: cannot access /dev/usb/lp*: No such file or directory w8@w8u-iomega:~$ sudo /usr/lib/cups/backend/usb DEBUG: list_devices DEBUG: usb_find_busses=2 DEBUG: usb_find_devices=5 w8@w8u-iomega:~$ ldd /usr/lib/cups/backend/usb | grep usb libusb-0.1.so.4 => /lib/libusb-0.1.so.4 (0x006d6000) w8@w8u-iomega:~$ lpinfo -v network http network beh network socket direct scsi network ipp network lpd network smb w8@w8u-iomega:~$ sudo modprobe usblp w8@w8u-iomega:~$ lsmod | grep usb usblp 17833 0 usb_storage 44173 8 ums_cypress w8@w8u-iomega:~$ sudo usb_printerid /dev/usb/lp0 Error: No such file or directory: can't open '/dev/usb/lp0' w8@w8u-iomega:~$ sudo rmmod usblp --------------- ** Attachment added: "910272_18Jan2012c.txt" https://bugs.launchpad.net/bugs/910272/+attachment/2682096/+files/910272_18Jan2012c.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/910272 Title: USB->Parallel adapter produces crappy device URI and CUPS "usb" backend cannot cope with it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/910272/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs