[sane-devel] HP ScanJet 4200 backend ("hp4200") and SANE 1.0.13

[Till Kamppeter]

There is a bug in the "hp4200" backend. It recognizes an HP ScanJet 4200 
even if only another (arbitrary) USB scanner is connected. "scanimage 
-L" or xsane list an HP ScanJet 4200 with the URI 
hp4200:/dev/usb/scanner0 whenever a USB scanner is connected and the 
"hp4200" line in /etc/sane.d/dll.conf is not commented out. xsane 
naturally gives an error message when trying to scan on this 
non-existing HP ScanJet 4200 ("Failed to open device 
'hp4200:/dev/usb/scanner0': Operation not supported").

The actual scanners I have on my test box are the Epson Perfection 2450 
Photo and the HP PSC 950 (with HPOJ 0.91).

    Till

Adrian Perez Jorge wrote:
> Hey!  Wait a bit! ;)
> 
>   I did not tested the compilation with libusb support, sorry.  I have 
> now tested both: compiling sane with libusb support and without it and 
> you can now download again the corrected patch at the same location:
> 
>        
> http://hp4200-backend.sourceforge.net/sane-backends-1.0.13-hp4200-0.4.patch.gz 
> 
> 
>  Excuse me for the inconveniences.
> 
> Cheers,
> 
> Adrian.