A little more...
When scanning (after rebooting), the color option doesn't transfer the image. I does
scan, but no actual data transfer takes place. This _does_ work under grayscale and
line art. I also tried several resolutions. The progress bar in the small window doesn't
even appear when colour is selected.
Another question... Should the preview be in color or in b/w (it's b/w here)
John
On Tue, 19 Dec 2000 01:20:34 -0300 John Coppens <jcoppens@linux2.uccor.edu.ar> wrote/El dddd> Hi Chris!
>
> Thanks for the reply. This certainly pushed me in the right direction. I tried several combinations
> of scanner/usbscanner in /dev and /dev/usb, but never hit on the correct one till your mail.
> It wasn't enough though. I also had to edit manually scanimage.h to add the SNAPSCAN
> 1212U_2 line. From then on things started to look up...
>
> I tried a few scans - made a preview that came out monochrome (this normal?). Generally
> the scanner seems to be slow. After hours of testing I did some social life for a while, when
> I came back scanner was dead: I cannot use the 'sleep' button, and no programs run
> anymore. Dmesg says:
>
> scanner.c: write_scanner: NAK recieved.
> usb_control/bulk_msg: timeout
>
> find-scanner hangs and times out after a minute or so. Same for other programs...
>
> I rmmod and re-insmodded the scanner, no difference. Tried the same with usb-uhci,
> and the scanner light went out/on/out, but still no action with the sane programs.
>
> Suggestions?
>
> John
>
> On Mon, 18 Dec 2000 16:56:25 -0500 cbagwell@sprynet.com wrote/El dddd> You might want to look for an email I sent out a while back on snapscan and USB gotchas.
> >
> > Here are a few things about that again. If I ever get some free time, I'll clean up the USB code so its not such a problem.
> >
> > 1) Do not have a /dev/scanner link if your using USB. It just confuses to much of the current code.
> > 2) Make a symbolic link from /dev/usb/scanner0 to /dev/usbscanner (if your scanner is really at scanner0).
> > 3) Make sure you have modified your snapscan.conf file and have /dev/usbscanner listed in it.
> > 4) Do not run *scanimage from the backend directory (it will use the wrong snapscan.conf file).
> > 5) run scanimage with -d snapscan:/dev/usbscanner
> >
> > Part of the problem is that the device name /dev/usbscanner is hardcoded in parts of the scapscan USB driver. If thats not consistently used then you will see the "... not in current list" error.
> >
> > Chris
> >
> > sane-devel@mostang.com wrote:
> > > Thanks for replying Sebastien!
> > This is the debug log:
> >
> >
> > on6jc:/usr/local/src/hardware/sane-1.0.3# scanimage -dsnapscan:/dev/usbscanner0
> > [sanei_debug] Setting debug level of snapscan to 255.
> > [snapscan] sane_snapscan_init
> > [snapscan] add_device(/dev/usb/usbscanner0)
> > [snapscan] usb_open(/dev/usb/usbscanner0)
> > [snapscan] add_device: error opening device /dev/usb/usbscanner0: Invalid argument
> > [snapscan] add_device(option connect-device)
> > [snapscan] usb_open(option connect-device)
> > [snapscan] add_device: error opening device option connect-device: Invalid argument
> > [snapscan] sane_snapscan_open (/dev/usbscanner0, 0xbffff250)
> > [snapscan] find_device
> > [snapscan] sane_snapscan_open: device "/dev/usbscanner0" not in current device list.
> > scanimage: open of device snapscan:/dev/usbscanner0 failed: Invalid argument
> > [snapscan] sane_snapscan_exit
> >
> >
> >
> > On 18 Dec 2000 18:53:53 +0100 Sebastien Sable wrote/El dddd> John Coppens writes:
> > >
> > > > Hi...
> > > >
> > > > I'm near desperation. Also, I'm frustrated, as everything seems to be ok, still
> > > > I cannot scan.
> > >
> > > Have you tried snapscan last version?
> > > http://snapscan.sourceforge.net
> > >
> > > what about:
> > >
> > > export SANE_DEBUG_SNAPSCAN = 255
> > > xscanimage
> > >
> >
> > --
> >
> > --
> > Source code, list archive, and docs: http://www.mostang.com/sane/
> > To unsubscribe: echo unsubscribe sane-devel | mail majordomo@mostang.com
> >
> >
> > --
> > Source code, list archive, and docs: http://www.mostang.com/sane/
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>
>
> --
>
> --
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