[sane-devel] Acer 640BU :-(

Henning Meier-Geinitz henning@meier-geinitz.de
Sun, 9 Sep 2001 23:18:52 +0200


On Sun, Sep 09, 2001 at 04:53:33PM -0400, Desmond Rivet wrote:
> This is apparently a developers mailing list. Ummm...I'm I'm in the
> wrong place, could you kindly point wher I should look?

You are at the right place. However, I don't know your scanner.

> 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=ff Prot=ff MxPS= 8 #Cfgs=  1
> P:  Vendor=04a5 ProdID=207e Rev= 1.00
> S:  Manufacturer=Color
> S:  Product= FlatbedScanner 13
> C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=100mA
> I:  If#= 0 Alt= 0 #EPs= 3 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=   8 Ivl=  0ms
> E:  Ad=83(I) Atr=03(Int.) MxPS=   8 Ivl= 16ms
> As you can see, I have a device listed as "Vendor=04a5 ProdID=207e Rev=
> 1.00". I checked and this is indeed the code for my scanner. The
> "Product= FlatbedScanner 13" part is also a clue :-)

Yes, but it's not detected by the scanner driver: Driver=(none)!

Example for a Mustek USB scanner:
I:  If#= 0 Alt= 0 #EPs= 3 Cls=00(>ifc ) Sub=00 Prot=00 Driver=usbscanner

> So far so good. I also checked my /dev directory and found all sorts of
> scanner files (though I don't know exactly what these are used for).
> Specifically, I found :
> /dev/usb/scanner0
> ...
> /dev/usb/scanner15
> I did *NOT* find any /dev/usbscanner or /dev/scanner files. Are these
> necessary? How do I make them?

Usually these are links. Do NOT create /dev/scanner. If you like, you
can create /dev/usbscanner (or /dev/usb/scanner) by just linking it to

Probably you need to tell the scanner module which scanner it should

rmmod scanner
modprobe scanner vendor=0x04a5 product=0x207e
scanimage -L

Check the syntax, I didn't look at the docs for that.