[sane-devel] [CanoScan5000f] Analyse of logs

[Thibault North]

>:-))))))))))))))))))
>
> =20
>
It hurts badly when reading them on a 75Hz screen :))

>> 00000000: 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f
>> 00000010: 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
>>
>>   =20
>>
>Hmm, seems that these are some lookup-tables - IMHO could be ignored,
>as long, as your "future" driver will do the same...
>
> =20
>
Ok. It means that SANE will take care of that? (Sorry not very familiar=20
with SANE, and don't know what I have to do and what is already done.=20
But apparently with this wonderful SANE project I have just to give my=20
scanner's specifications (how the chipset works) isn't it ?

>>2) Others seems to be more interesting :
>>
>>Urb 16 (C) ep=3D (write) 3 ms
>> 00000000: 44
>> 00000000: 40 0c 88 00 00 00 01 00
>>
>>But are rare.
>>   =20
>>
>
>These are important -> register I/O
>What's the chipset inside? looks like some genesys logic chipset!
> =20
>
Really ? sane-find-scanner -v -v doesn't find the chip's type, but if it=20
is close to it, I would be pleased to have informations about that :)
You can look at http://home.gna.org/canoscan5000f/sniff/ for other=20
gzipped logs, i you want to verify that :)

> =20
>
>>- for 2) Are all these short orders all important ? And does "(write)"
>>mean "data sent to scanner" and "(read)" data recieved mean "data read
>>from scanner" ?
>>   =20
>>
>
>AFAIK - yes. Mostly something will be written to the scanner, to tell it=
, that
>with the next read, data will be red.
>
> =20
>
AFAIK =3D ? (Sorry, I don't know enought english to know abbreviations=20
(You must certainly already got it :)) ))
Ok for that.

>>-for 3) If this is parf of scanning data, why do I find this type of =A7
>>later too ? Does it correspond to a "flush" from scanner after having
>>scanned a little part ?
>>   =20
>>
>
>What do you mean? I guess, that there will be some kind of calibration,
>where you'll find image data too before scanning.
> =20
>
I was wondering if the image data could be sent in may times, or if as=20
you suggest there is some calibration : indeed the Windows driver says :=20
"lamp adjusment, please wait" or something like that in French :)

Thank you very much,
Thibault North