[sane-devel] Device Selection
olaf.meeuwissen at avasys.jp
Fri Dec 16 00:40:30 UTC 2011
CACook at quantum-sci.com writes:
> Anyone have any ideas?
> On Tuesday, December 13, 2011 07:03:57 AM CACook at quantum-sci.com wrote:
>> On Sunday, December 11, 2011 03:42:26 PM Olaf Meeuwissen wrote:
>> > > # sane-find-scanner
>> > > ...
>> > > found USB scanner (vendor=0x138a, product=0x0007) at libusb:003:004
>> > > # Your USB scanner was (probably) detected. It may or may not be supported by
>> > > # SANE. Try scanimage -L and read the backend's manpage.
>> > Is this your scanner? Looks like a VFS451 Fingerprint Reader to me.
>> > At the very least none of the SANE backends don't mention they support
>> > this device. Nor do the external backends.
>> Hi, no it's a Canon MP460 multifunction printer/scanner.
>> It must be that the device found on the client was the fingerprint
>> reader on my HP Elitebook where I ran sane-find-scanner. For some
>> reason it is not referring to port 6566.
I believe sane-find-scanner was written to look for local scanners only.
As such it will not attempt to find networked devices.
>> On the server where the scanner is connected the device shows in lsusb as:
>> Bus 001 Device 006: ID 04a9:1716 Canon, Inc. MP460 Composite
>> ... and sane-find-scanner:
>> found USB scanner (vendor=0x04a9 [Canon], product=0x1716 [MP460]) at libusb:001:006
This device is reportedly supported by the pixma backend (0.16.1) of the
latest stable sane-backends release (1.0.22).
>> On Sunday, December 11, 2011 03:58:49 PM m. allan noah wrote:
>> > Try this:
>> > SANE_DEBUG_DLL=15 scanimage -L 2>dll.log
>> # SANE_DEBUG_DLL=15 scanimage -L 2>/home/carl/dl/dll.log
>> No scanners were identified.
IIRC, that log was taken on the client. Can you scan on the server? If
you can, it's probably a network related configuration issue.
Hmm, going up the thread I noticed you wrote:
> OK there's more to the story: My saned server is running on Hex, where
> the scanner is. I'm using a reverse SSH tunnel to serve 6566 on
> Droog. So 6566 appears on Droog as localhost:6566 yet the server is
> actually on Hex. For years I've remotely served services like this
> such as Squid, MythTV, Cups, etc, and they all (still) work. It is a
> great secure method. I am seeing localhost:6566 on Droog, just as I
> should, and there are no firewall errors. But XSane is not using it.
Your /etc/sane.d/net.conf has localhost enabled, right? Debian doesn't
enable it by default.
Your saned process have read/write access to the device, right? There
are (were?) distributions where scanners are configured for read/write
by one system group and saned runs as another ...
> Xsane runs fine on Hex, and when I stop saned it can no longer find
> any devices, so I know XSane is using saned on Hex. For some reason
> though, XSane is not finding the server on Droog.
> Is there anything I should know about XSane's use of saned?
I'm not quite sure I understand your setup but ...
How would XSane deal with the SSH authentication? Does it have to?
Can you telnet to localhost:6566 on Droog? Have you tried capturing
Hope this helps,
Olaf Meeuwissen, LPIC-2 FLOSS Engineer -- AVASYS CORPORATION
FSF Associate Member #1962 Help support software freedom
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