This is a work-around for the scanner permissions bug. $ lsb_release -a Distributor ID: Ubuntu Description: Ubuntu 8.04.1 Release: 8.04 Codename: hardy
$ uname -a Linux home 2.6.24-23-generic #1 SMP Thu Nov 27 18:44:42 UTC 2008 i686 GNU/Linux $ sane-find-scanner ... found USB scanner (vendor=0x04a5, product=0x2060) at libusb:002:003 $ lsusb ... Bus 002 Device 003: ID 04a5:2060 Acer Peripherals Inc. (now BenQ Corp.) Prisa 620U+/640U $ grep 2060 /etc/sane.d/*conf /etc/sane.d/snapscan.conf:usb 0x04a5 0x2060 $ SANE_DEBUG_SNAPSCAN=128 scanimage -L [sanei_debug] Setting debug level of snapscan to 128. [snapscan] sane_snapscan_init [snapscan] sane_snapscan_init: Snapscan backend version 1.4.53 [snapscan] add_usb_device(libusb:002:003) [snapscan] add_usb_device: Detected (kind of) an USB device [snapscan] snapscani_usb_open(libusb:002:003) [snapscan] add_usb_device: error opening device libusb:002:003: Access to resource has been denied [snapscan] sane_snapscan_get_devices (0xbff8e418, 0) No scanners were identified. If you were expecting something different, check that the scanner is plugged in, turned on and detected by the sane-find-scanner tool (if appropriate). Please read the documentation which came with this software (README, FAQ, manpages). [snapscan] sane_snapscan_exit -------------- This works as root: root# scanimage -L device `snapscan:libusb:002:003' is a Acer FlatbedScanner13 flatbed scanner So it's a permission problem with the device. What will fix it? "chgrp scanner /dev/usb* ; chmod 777 /dev/usb*" doesn't do it: crwxrwxrwx 1 root scanner 254, 13 Jan 14 08:41 /dev/usbdev2.3_ep83 crwxrwxrwx 1 root scanner 254, 12 Jan 14 08:41 /dev/usbdev2.3_ep02 crwxrwxrwx 1 root scanner 254, 11 Jan 14 08:41 /dev/usbdev2.3_ep81 crwxrwxrwx 1 root scanner 254, 10 Jan 14 08:41 /dev/usbdev2.3_ep00 More investigation: lrwxrwxrwx 1 root root 14 Jan 14 08:41 /dev/.udev/db/\\x2fdevices\\x2fpci0000:00\\x2f0000:00:02.1\\x2fusb2\\x2f2-1\\x2f2-1:1.0\\x2fusb_endpoint\\x2fusbdev2.3_ep83 -> usbdev2.3_ep83 lrwxrwxrwx 1 root root 14 Jan 14 08:41 /dev/.udev/db/\\x2fdevices\\x2fpci0000:00\\x2f0000:00:02.1\\x2fusb2\\x2f2-1\\x2f2-1:1.0\\x2fusb_endpoint\\x2fusbdev2.3_ep02 -> usbdev2.3_ep02 lrwxrwxrwx 1 root root 14 Jan 14 08:41 /dev/.udev/db/\\x2fdevices\\x2fpci0000:00\\x2f0000:00:02.1\\x2fusb2\\x2f2-1\\x2f2-1:1.0\\x2fusb_endpoint\\x2fusbdev2.3_ep81 -> usbdev2.3_ep81 lrwxrwxrwx 1 root root 14 Jan 14 08:41 /dev/.udev/db/\\x2fdevices\\x2fpci0000:00\\x2f0000:00:02.1\\x2fusb2\\x2f2-1\\x2fusb_endpoint\\x2fusbdev2.3_ep00 -> usbdev2.3_ep00 lrwxrwxrwx 1 root root 15 Jan 14 08:41 /dev/.udev/db/\\x2fdevices\\x2fpci0000:00\\x2f0000:00:02.1\\x2fusb2\\x2f2-1 -> bus/usb/002/003 Looking at the last line above, and checking permissions: $ ls -l /dev/bus/usb/002/003 crw-rw-r-- 1 root root 189, 130 Jan 14 09:26 /dev/bus/usb/002/003 Fixing permissions: root# chgrp scanner /dev/bus/usb/002/003 And now it works fine as non-root (as long as I'm in group scanner): $ SANE_DEBUG_SNAPSCAN=128 scanimage -L [sanei_debug] Setting debug level of snapscan to 128. [snapscan] sane_snapscan_init [snapscan] sane_snapscan_init: Snapscan backend version 1.4.53 [snapscan] add_usb_device(libusb:002:003) [snapscan] add_usb_device: Detected (kind of) an USB device [snapscan] snapscani_usb_open(libusb:002:003) [snapscan] add_usb_device: Checking if 0x04a5 is a supported USB vendor ID [snapscan] snapscani_check_device() [snapscan] mini_inquiry [snapscan] snapscan_cmd [snapscan] snapscani_usb_cmd(0,0xbf97cbba,6,0xbf97cbc4,0xbf97cbc0 (36)) [snapscan] atomic_usb_cmd(0,0xbf97cbba,6,0xbf97cbc4,0xbf97cbc0 (36)) [snapscan] usb_cmd(0,0xbf97cbba,6,0xbf97cbc4,0xbf97cbc0 (36)) [snapscan] usb_cmd: cmdlen=6, datalen=0 [snapscan] usb_write: writing: 0x12 0x00 0x00 0x00 0x24 0x00 [snapscan] Written 6 bytes [snapscan] usb_read: reading: 0xf9 0x00 0x00 0x00 0x00 0x00 0x00 0x00 [snapscan] Read 8 bytes [snapscan] usb_read: reading: 0x06 0x00 0x02 0x02 0x49 0x00 0x00 0x00 0x43 0x6f ... [snapscan] Read 36 bytes [snapscan] usb_read: reading: 0xfb 0x00 0x00 0x00 0x00 0x00 0x00 0x00 [snapscan] Read 8 bytes [snapscan] snapscani_check_device: Is vendor "Color" model "FlatbedScanner13" a supported scanner? [snapscan] snapscani_get_model_id(FlatbedScanner13, 0, 2) [snapscan] snapscani_get_model_id: looking up scanner for ID 0x04a5,0x2060. [snapscan] snapscani_check_device: Autodetected driver: Acer620 [snapscan] snapscani_usb_close(0) [snapscan] 1st read 3 write 1 [snapscan] snapscani_usb_cmd(0,0xbf97cba2,6,0x0,0x0 (0)) [snapscan] atomic_usb_cmd(0,0xbf97cba2,6,0x0,0x0 (0)) [snapscan] usb_cmd(0,0xbf97cba2,6,0x0,0x0 (0)) [snapscan] usb_cmd: cmdlen=6, datalen=0 [snapscan] usb_write: writing: 0x00 0x00 0x00 0x00 0x00 0x00 [snapscan] Written 6 bytes [snapscan] usb_read: reading: 0xfb 0x00 0x00 0x00 0x00 0x00 0x00 0x00 [snapscan] Read 8 bytes [snapscan] 2nd read 4 write 2 [snapscan] snapscani_init_device_structure() [snapscan] sane_snapscan_get_devices (0xbf97de08, 0) device `snapscan:libusb:002:003' is a Acer FlatbedScanner13 flatbed scanner [snapscan] sane_snapscan_exit -- sane-find-scanner sees scanner, scanimage -L does not https://bugs.launchpad.net/bugs/270185 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
