[sane-devel] no devices available

[Karl Heinz Kremer]

On Sun, Sep 09, 2001 at 04:33:13PM +0200, Henning Meier-Geinitz wrote:
[ ... ]
> 
> > T:  Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  2 Spd=12  MxCh= 0
> > D:  Ver= 1.00 Cls=ff(vend.) Sub=00 Prot=ff MxPS= 8 #Cfgs=  1
> > P:  Vendor=04b8 ProdID=010c Rev= 0.01
> > S:  Manufacturer=EPSON
> > S:  Product=Perfection640  
> > C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  2mA
> > I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
> > E:  Ad=81(I) Atr=02(Bulk) MxPS=  64 Ivl=  0ms
> > E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=  0ms
> 
> ... there is something wrong here. Driver=(none) means, the Linux scanner
> driver has NOT detected the scanner. Maybe try to "rmmod scanner" and
> "modprobe scanner vendor=0x04b8 product=0x010c" again. Any messages in
> syslog?

You may have to run /sbin/depmod -a after you modify modules.conf. Which
distribution are you using? If it's SuSE, then there is one more step
required. Please see the instructions at http://www.freecolormanagement.com/sane/suse71.html
- this does also work for SuSE 7.2.

> 
> > lrwxrwxrwx    1 root     root           15 Sep  8 05:47 /dev/scanner -> 
> > /dev/usbscanner
> 
> Don't do this. All the SCSI backends will try to access your scanner
> with SCSI commands.

You should either use /dev/usbscanner directly in epson.conf or use
/dev/usb/scanner0 (this is what all newer distributions use by default).

But this still would not work: You have to change the permissions on 
the scanner device file to 666, otherwise only "root" can access this
device.

Karl Heinz


-- 
Karl Heinz Kremer                                  khk at khk.net
PGP Key at http://www.freecolormanagement.com/download/khk.asc
EPSON Sane Backend:         http://www.freecolormanagement.com
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 292 bytes
Desc: not available
URL: <http://alioth-lists.debian.net/pipermail/sane-devel/attachments/20010909/156e2f35/attachment.sig>