[sane-devel] ScanJet 4C

[Jeff Hubbs]

Did you reboot or at least rmmod/modprobe your scsi card beore changing
the scanner's scsi id?


On Mon, 2005-03-28 at 07:04 +0800, Ted Parks wrote:
> Checking the place in the SCSI chain indicated on the small dial on my ScanJet 4C, I discovered the scanner was set on 7. I changed it to 0 and 1, but Sane still cannot find the scanner.
> 
> My continuing questions:
> 1) What should the SCSI setting be for the ScanJet? 0? It is the only device I have connected to the SCSI port. As Martin suggested, changing the setting from 7 cleared up the repetitions in dmesg, where the machine found the scanner 7 times! But Sane still does not see the ScanJet.
> 
> 2) Dmesg still has two entries associated with the scanner:
> 
> First:
> 
> SCSI subsystem initialized
> PCI: Found IRQ 9 for device 0000:00:10.0
> PCI: Sharing IRQ 9 with 0000:00:07.2
> scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
>         <Adaptec 2940 SCSI adapter>
>         aic7870: Single Channel A, SCSI Id=7, 16/253 SCBs
>  
>   Vendor: HP        Model: C2520A            Rev: 3503
>   Type:   Processor                          ANSI SCSI revision: 02
> Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 3
> 
> Then:
> 
>   Vendor: HP        Model: C2520A            Rev: 3503
>   Type:   Processor                          ANSI SCSI revision: 02
> Attached scsi generic sg0 at scsi1, channel 0, id 0, lun 0,  type 3
> 
> This seems to me, perhaps because of my inexperience with SCSI, that FedoraCore is attaching the scanner in two places. Why is sg0 found at scsi0 in the first entry, then at scsi1 in the second? If this is an error, how do I correct it?
> 
> 3) Finally, to provide a fuller account of my problem, the output from sane-find-scanner follows. Is it normal for a usb scanner to appear, even though none is attached?
> 
> [root@localhost tparks]# sane-find-scanner
>  
>   # No SCSI scanners found. If you expected something different, make sure that
>   # you have loaded a SCSI driver for your SCSI adapter.
>  
> found USB scanner (vendor=0x049f, product=0x505a) at libusb:001:002
>   # Your USB scanner was (probably) detected. It may or may not be supported by
>   # SANE. Try scanimage -L and read the backend's manpage.
>  
>   # Scanners connected to the parallel port or other proprietary ports can't be
>   # detected by this program.
> 
> Thanks,
> Ted Parks
> 
> 
> ----- Original Message -----
> From: "Martin Collins" <martin@mkcollins.org>
> To: sane-devel@lists.alioth.debian.org
> Subject: Re: [sane-devel] ScanJet 4C
> Date: Sun, 27 Mar 2005 04:34:16 +0100
> 
> > 
> > On Sun, 27 Mar 2005 08:41:42 +0800
> > "Ted Parks" <tparks@linuxmail.org> wrote:
> > 
> > > Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 3
> > ...
> > > Attached scsi generic sg6 at scsi0, channel 0, id 6, lun 0,  type 3
> > >
> > > But, when I run sane-find-scanner, sane reports that there are no
> > > SCSI scanners attached, instead finding a USB scanner that does not
> > > exist. I created a symbolic link between /dev/scanner and 
> > > /dev/sg0. What am I doing wrong?
> > 
> > The scanner should only be found once not seven times. Have you set
> > the ID on the scanner and terminated the chain properly?
> > 
> > Martin
> > 
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