[sane-devel] Canon MP700 Error during device I/O

[Wade Fitzpatrick]

Hi Dominik

Firstly, please send the output of ``lsusb -v'' for the Canon device so
that we can confirm that it also suffers from the bug in
sanei/sanei_usb.c where it tries to use the wrong endpoints. See
http://waddles.org/content/sane-canon-mp730-driver for more info. There
is still some work to be done for reliable support but the patches there
should at least get it working.

AFAIK, SmartBase, imageCLASS and MultiPASS are all just different
marketing names for the same devices, depending on which region they
were sold in.

Regards,
Wade.

Dominik Wnek wrote:
> Hello,
>
> I know this issue has been discussed extensively during the past month.
>
> I'm trying to get working a Canon SmartBase MP700 Photo (this is a
> European model); lsusb reports:
>
> ID 04a9:2630 Canon, Inc. MultiPASS MP700
>
> with easily predictable scanning results: 
>
> Error during device I/O
>
> I have also been reading the threads "MP730 driver broken since
> pixma-0.12.2" and "ERROR DURING READ: Error during device I/O PIXMA" and
> realise there has been success and that work is planned on this soon.
>
> The attached log was obtained using the instructions quoted below;
> they're from the thread "ERROR DURING READ: Error during device I/O
> PIXMA".
>
> I understand my device is not the same as the PIXMA, but the error seems
> to be the same and I'm thinking maybe I am able to provide useful info.
>
> The system is Ubuntu 9.04, kernel 2.6.28, libusb 0.1.12, sane-backends
> compiled from latest (20090509) git snapshot.
>
> Hope this is useful. Looking forward to using the device in Linux :-)
>
> Thanks,
>
> Dominik 
>
>   
>> Just gave you a wrong answer before (was for another thread)
>>
>> Yes, I took a look at it, and it looks like a timeout in libusb
>> interrupt read is not correctly taken into account. 
>>
>> Could you get a more detailed thread like this:
>>
>> $ export SANE_DEBUG_SANEI_USB=255
>> $ export SANE_DEBUG=255
>> $ export SANE_DEBUG_PIXMA=21
>> $ scanimage -T &> scan.log
>>
>> Nicolas
>>     
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>>
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