Mario,

I was able to get it work with my A620 last autumn,
but I had to do the changes listed in the below email
to the sourcecode before it worked.

-s.

-------- Original Message --------
Subject:        poweshot A620 fixes
Date:   Mon, 24 Oct 2005 18:54:32 +0300
From:   Sami Sallinen <[EMAIL PROTECTED]>
To:     [email protected]



Hi,

I have been trying to get capture working with my Powershot A620.

My first problem was getting random timeouts with the capture ptp command.
That was fixed by increasing the tries count a bit.

The second problem was that capture always hung at the second get 
partial object usb request and the camera needed a reset afterwards. 
That was fixed by changing the values used for the pos parameter from 
0,2,3 to 0,1,2.

I have not tried the viewfinder, but otherwise it seems to work now.

the diff for my ptp-utils.c vs the cvs head:

319a320
>
433c434
<     int i, stat, tries=25;
---
>     int i, stat, tries=50;
468c469
<     int i,j, nblocks, bsize=5000, stat, tries=20;
---
>     int i,j, nblocks, bsize=5000, stat, tries=50;
539c540
<       pos   = (!i) ? 0 : ( (!tail && i==nblocks-1) ? 3:2 );
---
>       pos   = (!i) ? 0 : ( (!tail && i==nblocks-1) ? 2:1 );

Unless these changes are deemed harmful for other cameras, please feel 
free to add them to the cvs tree.

Best Regards,

-s.



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