[sane-devel] Canon MP250 detected by sane-find-scanner but not by scanimage

[m. allan noah]

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
>
>
> --
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