Can't find device

Dan Mueth (dmueth@rheo.uchicago.edu)
Wed, 17 Sep 1997 09:27:48 -0700

I have just downloaded Sane and am trying to get it to work with a
HP ScanJet IIc ( which appears to not have been tested with Sane.)
I am running Sane-0.63 on Linux 2.0.7 with an NCR53c810 based SCSI
card. My only other SCSI device is a JAZ drive on /dev/sda4 which
is working fine. When I boot the machine, it appears that things
are okay:

ncr53c8xx : at PCI bus 0, device 15, function 0
ncr_attach: unit=0 chip=810 base=fffbff00, io_port= fc00, irq=9
ncr53c810-0: using memory mapped IO at virtual address 0x5841f00
ncr53c810-0: requesting shared irq 9 (dev_id=0x4ffc 068)
ncr53c810-0: restart (scsi reset).
scsi0 : ncr53c8xx (rel 1.12a)
scsi : 1 host.
Vendor: HP Model: C1750A Rev: 3125
Type: Processor ANSI SCSI revision: 01
Vendor: iomega Model: jaz 1GB Rev: H.72
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi removable disk sda at scsi0, channel0, id 4, lun 0
scsi : detected 1 SCSI disk total.
ncr53c810-0-<target 4, lun 0>: FAST SCSI-2 100ns (10 Mb/sec) offset 8.
SCSI device sda: hdwr sector= 512 bytes. Sectors= 2091050 [1021 MB] [1.0
GB]
sda: Write Protect is off

After compiling, I have "chmod 666 /dev/sg*" since I expected the
scanner to appear as one of these. I have tried
scanimage -d hp:/dev/sgb -h
and the other sg? devices, as well as for various sda,sda1, and others.
I always get the error:
open of device hp:/dev/sgh failed: Invalid argument
The same occurs if I leave out the "hp:".

Is there some way of knowing which device my scanner is attached to?
Have I left out any steps in configuring things after installing
Sane?

TIA,

Dan