SANE_DEBUG_PIXMA=255 scanimage -L should produce some kind of debug info. If not, then the backend is not even being loaded. That could be caused by incorrect configuration, incorrect build-time arguments, or missing libraries at build time. Why did you build from source?
allan On Fri, Jul 22, 2011 at 10:00 AM, Noe Nieto <nnieto at noenieto.com> wrote: > I have a Canon MP250 device. The manpage of the pixma backend states that > this device is supported, but when trying to use scanimage, there's no > scanner detected. > > Test case: > > Plug the scanner, and check lsusb and /var/log/messages: > > # dmesg > [?? 48.452116] usb 1-5: new high speed USB device using ehci_hcd and address > 6 > [?? 48.568240] usb 1-5: New USB device found, idVendor=04a9, idProduct=173a > [?? 48.568248] usb 1-5: New USB device strings: Mfr=1, Product=2, > SerialNumber=3 > [?? 48.568255] usb 1-5: Product: MP250 series > [?? 48.568260] usb 1-5: Manufacturer: Canon > [?? 48.568265] usb 1-5: SerialNumber: 2A7E97 > [?? 48.757977] usblp0: USB Bidirectional printer dev 6 if 1 alt 0 proto 2 > vid 0x04A9 pid 0x173A > [?? 48.758422] usbcore: registered new interface driver usblp > [?? 51.250104] wlan0: no IPv6 routers present > [?? 60.211879] fuse init (API version 7.16) > [?? 60.257069] SELinux: initialized (dev fusectl, type fusectl), uses > genfs_contexts > [?? 60.270808] SELinux: initialized (dev fuse, type fuse), uses > genfs_contexts > > # 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 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 001 Device 002: ID 413c:a005 Dell Computer Corp. Internal 2.0 Hub > Bus 003 Device 002: ID 04d9:0499 Holtek Semiconductor, Inc. Optical Mouse > Bus 001 Device 004: ID 0b97:7761 O2 Micro, Inc. Oz776 1.1 Hub > Bus 001 Device 005: ID 0b97:7762 O2 Micro, Inc. Oz776 SmartCard Reader > Bus 001 Device 007: ID 04a9:173a Canon, Inc. > > Run sane-find-scanner: > > # sane-find-scanner > ... > found USB scanner (vendor=0x04a9 [Canon], product=0x173a [MP250 series]) at > libusb:001:007 > > > Scanimage doesn't get it: > > # scanimage -L > > 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). > > # scanimage -L > PIXMA_EXPERIMENT=0; SANE_DEBUG_PIXMA=21 scanimage -L > > 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). > > I'm using Fedora 15, with latest source from git repo: > > scanimage -V > scanimage (sane-backends) 1.0.23git; backend version 1.0.23 (commit id: > cbc281c30a3d7bfcc02750cf782a4c8e6efac07c) > > I want to help to get this fixed. Any hints? > > -- > --- > Noe Nieto > NNieto Consulting Services > M: nnieto at noenieto.com > W: http://noenieto.com > T:? @tzicatl > Li: Perfil en LinkedIn > > > -- > sane-devel mailing list: sane-devel at lists.alioth.debian.org > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel > Unsubscribe: Send mail with subject "unsubscribe your_password" > ? ? ? ? ? ? to sane-devel-request at lists.alioth.debian.org > -- "The truth is an offense, but not a sin"