Hello Dag,
I've you need some beta-tester, as I had a brand new Lide 500F, and I'm
working under
Mandriva, I would be happy to help you. I'm just not a C man :-)

Hope really this scan to be soon supported under SANE.
Many thanks for your efforts.

You could find my usbsnoop capture log under
http://ftp.ioda.net/ioda-net/usbsnoop.log.tar.gz ( 1Mo)
Just putting the scan into USB port.

>------------------------------
>
>Message: 2
>Date: Tue, 26 Jul 2005 08:16:41 +0200
>From: Dag Rune Sneeggen <[email protected]>
>Subject: Re: [sane-devel] Contributing to CanoScan LiDE 500F
>       development.
>To: St?phane VOLTZ <[email protected]>,
>       [email protected]
>Message-ID: <[email protected]>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>Excellent!
>Thanks a bunch for all the useful information and your awk scripts.
>I'll see if I can get around to fiddling a bit with it this week...
>Hopefully hehe ;)
>
>Cheers,
>Dag Rune Sneeggen
>
>---
>dudcore Consulting(http://www.dudcore.net) - Quality state-of-art hosting and 
>IT Consulting.
>Personal, reasonable, and honest idealism!
>For geeks by geeks...
>
>
>St?phane VOLTZ wrote:
>  
>
>>Le Mardi 26 Juillet 2005 02:39, Dag Rune Sneeggen a ?crit :
>>
>>    
>>
>>>I've read over at
>>>http://www.sane-project.org/unsupported/canon-canoscan-lide-500f.html and
>>>http://www.meier-geinitz.de/sane/genesys-backend/ that there is some work
>>>being done to get support for this scanner. At the moment I have to haul up
>>>vmware with windows virtually to scan stuff.
>>>
>>>As such, I'm wondering how fast this development is going, and if there's
>>>any way I could help? Anything in particular that could be helpful?
>>>
>>>Cheers,
>>>Dag Rune Sneeggen
>>>
>>>---
>>>dudcore Consulting(http://www.dudcore.net) - Quality state-of-art hosting
>>>and IT Consulting. Personal, reasonable, and honest idealism!
>>>For geeks by geeks...
>>>      
>>>
>>      Hello,
>>
>>      here are the scripts I use to analyze gl646 logs taken with usbsniff 
>> 1.8. It 
>>takes a raw log and turn it into a file with higher level functions decoded, 
>>which is much easier to understand. The decode() function used by 
>>scripts/genesys_bulk_write_register.awk
>>scripts/genesys_bulk_write_register2.awk
>>scripts/genesys_read_register.awk
>>needs to be changed to decode gl841 registers. But the rest is OK. There are 
>>still a few raw URB in the results, but they are understable (bulk reads of 
>>data).
>>
>>      Once the scripts are tuned the process of adding support for GL841 is:
>>      - use usbsniff to log scans with clearly identified parameters (dpi,
>>        geometry, ...)
>>      - decode the log with the scripts
>>      - isolate portion of it and match them with high level action such as 
>> head
>>        parking, shading calibration etc ...
>>      - change the corresponding functions in genesys_gl841.c to match the
>>        decoded log.
>>      - run scanimage to test with full debug log
>>      - compare the scanimage log with the decoded log and fixe the 
>> differences
>>        you get.
>>      - once a high level function is done, get to the next one.
>>
>>      I estimate it should take about 20 to 40 hours of work to finish the 
>> gl841 
>>backend.
>>
>>      Patches and questions are welcomed.
>>
>>Regards,
>>      Stef
>>
>>
>>    
>>
>
>  
>

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