[sane-devel] no devices available

Henning Meier-Geinitz henning@meier-geinitz.de
Sun, 9 Sep 2001 16:33:13 +0200


On Sun, Sep 09, 2001 at 03:45:12PM +0200, jochen georges wrote:
> sorry for the newbie question on an devel-list, but i did not find the help i 
> need.

As this is the only list for SANE, it's ok to ask all SANE-related
questions here.

> i try to get my epson perfection640u (usb) scanner running with sane and 
> xsane.

I don't know this scanner and the epson backend but ...

> 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

> 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.