[sane-devel] Canoscan 8800F]

[m. allan noah]

DEBUG_SANE_SANEI_USB is not a proper variable. should be SANE_DEBUG_SANEI_USB

allan

On Mon, May 17, 2010 at 9:25 PM, Gernot Hassenpflug
<aikishugyo at gmail.com> wrote:
> On Tue, May 18, 2010 at 7:14 AM, Kurt Rosenfeld
> <hardware at ee.ccny.cuny.edu> wrote:
>> Gernot,
>>
>> This is the stderr output of scanimage with DEBUG_SANE,
>> DEBUG_SANE_SANEI_USB, and SANE_DEBUG_DLL all set to 255:
>> http://acm.poly.edu/~kurt/scanimage_all255.txt
>>
>> Here is the stderr output of scanimage -d test
>> with SANE_DEBUG_TEST set to 255:
>> http://acm.poly.edu/~kurt/scanimage_-d_test.txt
>>
>> thanks, -kurt
>>
>> On Mon, May 17, 2010 at 01:09:23AM +0900, Gernot Hassenpflug wrote:
>>> Hello Kurt,
>>>
>>> I am concerned about this part of the log file:
>>>
>>> [pixma] pixma_open(): Canoscan 8800F
>>> [pixma] WARNING:pixma_write(): count(0) != len(16)
>>> [pixma] OUT  T=3.054 len=-1
>>> [pixma]  00000000:ef 20 00 00 00 00 00 00  00 00 00 00 00 00 00 00
>>> [pixma]   ERROR: EIO
>>>
>>> It looks as though the scanner is not responding even at the start of
>>> the operation. Maybe you can try setting more debug options to 255:
>
> Hi, looks like exactly the same. I thought we would see the raw USB
> operations now but apparently not: what I wanted to see was the USB
> attachment and configuration URBs. Since no I/O is possible at all,
> maybe the attachment or configuration is not going well.
>
> Q to the list: Are there any other DEBUG variables that can be set to
> see this kind of information?
>
> Otherwise, I recommend doing a USB snoop on a Windows machine (which I
> understand you do not have available) so I can try to see what if any
> differences there are to my scanner. No-one else has reported trouble
> using the 8800F, but I have no idea if Canon made different variations
> that require some tuning of the communication protocol.
>
> Regards,
> Gernot
>
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