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

[Noe Nieto]

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 <https://twitter.com/#%21/tzicatl>
Li: Perfil en LinkedIn <http://www.linkedin.com/profile/view?id=84300665>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20110722/88c24b7e/attachment.html>