[sane-devel] Acer 640BU :-(

[Desmond Rivet]

Hi again,

> > 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.

I have the Acer 640BU :)

> > 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)!

Aha! This would appear to pose a problem! So on to my next question:
what does a scanner driver look like and how do I go about getting it to
recognize my scanner?
 
> Example for a Mustek USB scanner:
> I:  If#= 0 Alt= 0 #EPs= 3 Cls=00(>ifc ) Sub=00 Prot=00 Driver=usbscanner

Is there just one driver for all the USB scanners?

> > 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
> /dev/usb/scanner0.

Okay.

> Probably you need to tell the scanner module which scanner it should
> detect:
> 
> rmmod scanner
> modprobe scanner vendor=0x04a5 product=0x207e
> scanimage -L

Right, I did that, but see above concering my missing driver!

Thanks for the pointers, I appreciate the help!

-- 
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Desmond Rivet                                    des_riv@sympatico.ca
Programmer Wannabe

  It is a great art to saunter.  -- Henry David Thoreau