[sane-devel] Fujitsu USB scanner support working!

[Ron Cemer]

It's definitely a bug.  And you're right, it's still not working in the 
epson module, even when you change the sscanf from %d to %i, so there's 
probably another bug somewhere.

However, when I copied the same code into fujitsu.c, changed the sscanf 
from %d to %i, and on success (sscanf returns 2) I call 
sanei_usb_attach_matching_devices(...) [instead of 
sanei_config_attach_matching_devices], I can now configure my fujitsu 
scanner using "usb 0x04c5 0x1042", and scanimage recognizes the scanner 
and I am able to scan just fine.  My guess is that either 
sanei_config_attach_matching_devices has a bug, or possibly more likely, 
it's more appropriate to call sanei_usb_attach_matching_devices, since 
we know for sure that we're trying to attach a USB device.

Till Kamppeter wrote:

> Henning Meier-Geinitz wrote:
>
>>
>> I think it's ok. The epson backend checks for "usb vendor product" and
>> calls sanei_usb_attach_matching_devices if it find such a line.
>> Otherwise it checks for "usb" and calls attach for the device name. If
>> it's not "usb", it calls sanei_config_attach_matching_devices(line,
>> attach_one);
>>
>>
>
> Are you sure that the "epson" backend understands something other than 
> fixed devices? I have tried
>
> usb 0x04b8 0x0112
>
> for my Epson Perfection 2450 and the "epson" backend did not find it. 
> The only way to get this scanner working is to use a fixed address as
>
> usb /dev/usb/scanner1
>
>    Till
>
>
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