Am Son, 06 Feb 2000 schrieben Sie:
> I've been following both the USB and the sane list since I bought an AGFA
> snapscan USB scanner. After much testing and fighting, and despite loads of help
> from both groups, I eventually flogged this scanner for a SCSI one. However, I
> do know that there has been success in this area. Namely, David Nelson was able
> to get a few HP USB scanners to work. The solution is two-fold. First, you have
> to get the scanner talking to your PC over the USB port. This is the job of the
I've gotten into contact with David Nelson and joined several
mailing lists. I get the scanner to be detected.
However, from the USB side the scanner is odd. I forced the driver
to talk to the scanner regardless. I am quite confident that I can write
to the scanner. I am not sure whether I can read from the scanner.
> USB driver. This will give you a /dev/usbscanner. Next, you need to get sane to
> talk to your scanner via /dev/usbscanner.
>
> First point: Have a look @ www.linux-usb.org and get on there mailing list.
> David Nelson has got some HP scanners talking via usb, and with a little
> modification of his code, I had my AGFA talking as well. David was quite helpful
> with this, considering that I'm am not a programmer, he showed me exactly where
> to modify the code and exactly what to change to get it talking. Once you get
> your scanner talking over USB, then you need to work with the sane side.
The scanner reports two sources of data. I am not sure
whether I am reading from the correct one, or even if I need to do some
weirder stuff.
The scanner simply doesn't answer. Now I don't know whether that is because
I do the reading wrongly, or I do send the wrong commands.
> Sane side: Now that your scanner is talking over USB, it may not be talking
> SCSI. If you are lucky, as David was with HP, the scanner may use the same
> protocol. Otherwise, you will need to find out what protocol the scanner uses
> over USB. The HP's did use SCSI over the USB port, but, sadly, my AGFA scanner
> didn't. This was why I eventually sold it to my niece, who is using Windows98.
The windows driver does, according to documentation, both types.
> This will be a major undertaking on your part to get this working. Lots of
> people on both lists will be quite helpful, but you can expect to do quite a bit
I am going to try to read from the other source, unless I get better ideas.
I'd appreciate links to tools. I know C but neither USB nor scanners.
Please, please suggestions !?
> of work, with assistance. IF you can get it working, you can feel quite good
in > yourself for making such a major contribution to Linux. USB and scanners
are > areas that need lots of work. If not, be more careful when buying
hardware. I > know, I've made many mistakes buying hardware only to find that
the support > wasn't there. I am now much more careful to check what is and
isn't supported > before I buy now. I've had to replace a modem, a printer and
a scanner. And I've > gotten loads of grief from the wife each time.
>
> Good luck with your scanner and I hope you can get it working. Linux need as
> much hardware support as possible. Especially USB.
>
> Cheers,
>
> John Gay
>
>
>
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