[sane-devel] sane plustek with two similar usb scanners connected (Canon lide 20): error during device I/O

[Gerhard Jaeger]

On Freitag, 6. April 2007, xavier desurmont wrote:
> I try to use 2 scanners (the same ones). I connect the
> two usb, switch on the computer and then :
> 
> va2 at va2-desktop:~$ lsusb
> Bus 005 Device 001: ID 0000:0000  
> Bus 004 Device 001: ID 0000:0000  
> Bus 003 Device 005: ID 04a9:220d Canon, Inc. CanoScan
> N670U/N676U/LiDE 20
> Bus 003 Device 001: ID 0000:0000  
> Bus 001 Device 004: ID 04a9:220d Canon, Inc. CanoScan
> N670U/N676U/LiDE 20
> Bus 001 Device 001: ID 0000:0000  
> Bus 002 Device 002: ID 046d:c016 Logitech, Inc.
> M-UV69a Optical Wheel Mouse
> Bus 002 Device 001: ID 0000:0000  
> 
[SNIPSNAP]
I guess you really triggered a problem there, although it should work.
I'll try and retest that with my two Lide30.

BTW - which backend version did you try? Have you also tested using
2 times xsane?

Gerhard