[sane-devel] Epson 640U problem

[Frank J.Ramsay]

I did look at that site (it's actually how I got the scanner working prior to 
the upgrade)       

crw-rw-rw-    1 fjr      root     180,  48 Aug 30 16:30 /dev/usb/scanner0

As you can see here the scanner device is read/write for everyone and it is 
180,48  and no root can't scan either.  The ownership of the device is 
strange, I tried making it root:root but that didn't help :(


I also noticed that if I don't kill xscanimage then eventually I get this in 
/var/log/messages:
Nov  9 21:51:44 atredies kernel: usb_control/bulk_msg: timeout


		-fjr


On Friday 09 November 2001 09:22 pm, Karl Heinz Kremer wrote:
> Frank,
>
> have you tried the tips on my web site
> (http://www.freecolormanagement.com/sane) ? There are a few things that
> could be wrong: Is the device file read/writeable for everybody? Can you
> scan as root? Does the device file have the right major/minor device
> number? When you do an ls -l /dev/usb/usbscanner0 you should see 180 and 48
> as major/minor device numbers. Does the device file exist at all?
>
> Karl Heinz
>
> On Fri, Nov 09, 2001 at 09:04:08PM -0500, Frank J.Ramsay wrote:
> > AUGH!!! I can't take it anymore!
> > I just upgrade my system and I can't get my scanner working.  I've
> > exausted my knowledge of sane, so if anyone has any idea what I'm doing
> > wrong _please_ say so, and if things look like they should be working...
> > well that's a bigger problem isn't it.  (oh it was working before the
> > upgrade)
> >
> > I installed sane-backends-1.0.6, sane-frontends-1.0.6 and xsane-0.80 on
> > RH 7.2 here are some partial file dumps...
> >
> > This is from /var/logs/messages, when I try and use the scanner I get
> > line after line of this.  It is the _only_ error message I recieve
> > regarding the scanner.
> > Nov  9 20:45:36 atredies kernel: scanner.c: open_scanner(5): Unable to
> > access minor data
> >
> > now to the configuration files:
> > >From /proc/bus/usb/devices:
> >
> > ...
> > P:  Vendor=04b8 ProdID=010c Rev= 0.01
> > S:  Manufacturer=EPSON
> > S:  Product=Perfection640
> > ...
> >
> > >From /etc/modules.conf:
> >
> > ...
> > options scanner vendor=0x04b8 product=0x010c
> >
> > modprobe doesn't report any errors and /var/log/messages has this:
> > ...
> > Nov  9 20:45:35 atredies kernel: usb.c: registered new driver usbscanner
> > Nov  9 20:45:35 atredies kernel: scanner.c: probe_scanner: User specified
> > USB scanner -- Vendor:Product - 4b8:10c
> > Nov  9 20:45:35 atredies kernel: scanner.c: USB Scanner support
> > registered. ...
> >
> > >From /etc/sane.d/epson.conf (the scsi line is commented out)
> >
> > ...
> > /dev/usb/usbscanner0  (I also tried 'usb /dev/usb/usbscanner0')
> >
> >
> > sane-find-scanner reports this:
> >
> > sane-find-scanner: found USB scanner (UNKNOWN vendor and product) at
> > device /dev/usb/scanner0
> >
> > # `UNKNOWN vendor and product' means that there seems to be a scanner
> > # at this device file but the vendor and product ids couldn't be
> > # identified. Currently identification only works with Linux versions
> > # >= 2.4.8.
> > I'm running kernel 2.4.7-10
> >
> > xsane report there is no scanning device.
> >
> > I also tried running 'xscanimage epson:/dev/usb/scanner0'
> > but all that happens is the scanner light blinks no file is produced and
> > those error messages I mentioned before are written.  Oh yea, the prompt
> > doesn't return and I end up having to kill the process.
> >
> > help please!
> >
> > 			-fjr
> >
> >
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