[sane-devel] Canon PIXMA MX890

[Rolf Bensch]

Hi Henry,

The sense of sniffing some windows usb protocols is that we catch
running protocols. With them we can walk through the source code to find
the problem.

It's not a problem for me to wait until you are ready.

Cheers,
Rolf


Am 13.12.2012 21:07, schrieb Henry Ptasinski:
> Rolf,
> 
> I don't have an XP machine up and running at the moment.  I may have one
> in a while, but not sure when.
> 
> I believe the problem occurs via both USB and network, so could this be
> debugged by sniffing network traffic instead (and preferably using a
> different OS than XP).
> 
> ---
> Henry Ptasinski
> henry at logout.com
> 
> 
> On 12/07/2012 10:57 AM, Rolf Bensch wrote:
>> Hi Henry,
>>
>> The backend has an ADF paper empty bug. You can try to debug this issue,
>> if you like.
>>
>> The first step could be to sniff the complete usb protocol from a 5mm x
>> 5mm ADF scan on a windows machine with usbsnoop
>> (http://benoit.papillault.free.fr/usbsnoop/). This program is old and
>> runs with xp only, but we have a parser for the log files (spike4.pl).
>>
>> Cheers,
>> Rolf
>>
>>
>> Am 05.12.2012 00:57, schrieb Henry Ptasinski:
>>> Rolf,
>>>
>>> The ADF partially works.  I've been able to get simplex scans
>>> occasionally.  Duplex scans so far have only yielded the front page, and
>>> some errors such as:
>>>
>>> ...
>>> [pixma] bjnp_write_bulk(0, bufferptr, 0x10 = 16)
>>> [pixma] bjnp_set_timeout to 20000
>>> [pixma] bjnp_read_bulk(0, bufferptr, 0x200 = 512)
>>> [pixma] bjnp_set_timeout to 20000
>>> [pixma] bjnp_write_bulk(0, bufferptr, 0x10 = 16)
>>> [pixma] bjnp_set_timeout to 20000
>>> [pixma] bjnp_read_bulk(0, bufferptr, 0x200 = 512)
>>> [pixma] bjnp_set_timeout to 20000
>>> [pixma] bjnp_write_bulk(0, bufferptr, 0x10 = 16)
>>> [pixma] bjnp_set_timeout to 20000
>>> [pixma] bjnp_read_bulk(0, bufferptr, 0x200 = 512)
>>> [pixma] bjnp_set_timeout to 20000
>>> [pixma] bjnp_write_bulk(0, bufferptr, 0x10 = 16)
>>> [pixma] bjnp_set_timeout to 20000
>>> [pixma] bjnp_read_bulk(0, bufferptr, 0x200 = 512)
>>> [pixma] WARNING:image size mismatches
>>> [pixma]     1678578 expected (877 lines) but 1556082 received (813
>>> lines)
>>> [pixma] pixma_read_image(): completed (underrun detected)
>>> [pixma] sanei_bjnp_deactivate (0)
>>> [pixma] Reader task terminated
>>> [pixma] pixma_close(): Canon PIXMA MX890 Series
>>> [pixma] sanei_bjnp_close(0):
>>> [pixma] sanei_bjnp_deactivate (0)
>>>
>>>
>>> When this happens, the display on the printer continues to say "Scanning
>>> document", and I'm not able to cancel out of the scan.
>>>
>>> My recent tests were via network.  I'll attach the scanner via USB and
>>> try to collect some debug info.
>>>
>>> ---
>>> Henry Ptasinski
>>> henry at logout.com
>>>
>>>
> 
>