Re: will my scanner work

From: Oliver Schwartz (Oliver.Schwartz@gmx.de)
Date: Sun Sep 24 2000 - 03:23:42 PDT

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    Hi,

    > I've got sane-1.0.3 and linux-2.4.0-test9-pre6. I've tried hand
    > crafting the USB patches to work with sane-1.0.3, but it fails to
    > recognise my scanner's existence even after I got the patches to
    > apply. (The same thing happens under kernel 2.2.15 with USB backport)

    With sane-1.0.3 it should be quite simple. You get the USB files (from
    http://www.ginko.de/user/oschwartz/snapscan/snapscan-usb.tgz), remove the
    comments for USB includes from snapscan.c and snapscan.h and recompile.

    > I've followed all the documentation I could find on the 1212U, it
    > seems to be the older one that doesn't use firmware upload. How do I
    > debug the problem? I've tried 'export SANE_DEBUG_SNAPSCAN=255', but
    > all it tells me is

    > [snapscan] add_device: error opening device /dev/usb/scanner0:
    > Invalid argument

    That looks like an easy one... Does the device (/dev/usb/scanner0) exist? At
    least on my machine (2.2.16 with USB backport) the correct device is
    /dev/usbscanner. You have to supply the devicename in snapscan.conf, e.g.

    scsi AGFA
    scsi COLOR
    scsi Color
    /dev/usbscanner

    Good luck,

    Oliver

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