New on an A520, RE: Still problems with canon a510 and 2.4.7

[aasf]

Hello:

I believe I am having the same or similar problem with a Canon A520 as
stated in this previous post on 9/11/2009.

"PTP: Sequence number mismatch 56 vs expected 58."

This occurs when I use:

"gphoto2 --capture-image"

or

"gphoto2 --capture-image-and-download"

more than one time.  Like the original post, I am writing a script which
will continuously capture images.  In my case I want to do this about
every 5 minutes to display on a website.  I'm planning to eventually
create daily time lapse videos from the pictures. We are a bunch of
soaring pilots and want a good look at what is happening with the weather
at our glider port along with other weather data before we commit to the
drive out to fly.

Anyway, after the first (or second on rare occasions) successful capture,
gphoto2 generates a long stream of "Sequence number mismatch....." errors
with the next capture attempt, then "freezes" and I have to ctrl-C to get
back to the shell prompt.  I can only successfully again capture images if
I cycle the power on the camera.

Otherwise, I can set and get parameters successfully.

I am using gphoto2.4.7 and libgphoto2.4.7 which I downloaded from
SourceForge.  The Linux OS on my computer is Ubuntu 9.04 with the latest
updates.

A log file from an unsuccessful run can be found at:

http://adamsfive.com/aasf/gphoto2.4.7_log.txt

>From reading the previous posts on this issue, it appears a patch might
have been created.  I am certainly willing to attempt to try it.

Thanks for any help on this problem,
Aland












------------------------------------------------------------------------------
Come build with us! The BlackBerry(R) Developer Conference in SF, CA
is the only developer event you need to attend this year. Jumpstart your
developing skills, take BlackBerry mobile applications to market and stay
ahead of the curve. Join us from November 9 - 12, 2009. Register now!
http://p.sf.net/sfu/devconference
_______________________________________________
Gphoto-user mailing list
Gphoto-user@...
https://lists.sourceforge.net/lists/listinfo/gphoto-user

On Fri, Oct 23, 2009 at 01:07:13AM -0600, aasf@... wrote:

> Hello:
>
> I believe I am having the same or similar problem with a Canon A520 as
> stated in this previous post on 9/11/2009.
>
> "PTP: Sequence number mismatch 56 vs expected 58."
>
> This occurs when I use:
>
> "gphoto2 --capture-image"
>
> or
>
> "gphoto2 --capture-image-and-download"
>
> more than one time.  Like the original post, I am writing a script which
> will continuously capture images.  In my case I want to do this about
> every 5 minutes to display on a website.  I'm planning to eventually
> create daily time lapse videos from the pictures. We are a bunch of
> soaring pilots and want a good look at what is happening with the weather
> at our glider port along with other weather data before we commit to the
> drive out to fly.
>
> Anyway, after the first (or second on rare occasions) successful capture,
> gphoto2 generates a long stream of "Sequence number mismatch....." errors
> with the next capture attempt, then "freezes" and I have to ctrl-C to get
> back to the shell prompt.  I can only successfully again capture images if
> I cycle the power on the camera.
>
> Otherwise, I can set and get parameters successfully.
>
> I am using gphoto2.4.7 and libgphoto2.4.7 which I downloaded from
> SourceForge.  The Linux OS on my computer is Ubuntu 9.04 with the latest
> updates.
>
> A log file from an unsuccessful run can be found at:
>
> http://adamsfive.com/aasf/gphoto2.4.7_log.txt
>
> >From reading the previous posts on this issue, it appears a patch might
> have been created.  I am certainly willing to attempt to try it.

I have built a test libgphoto2 which should handle those sequence errors,
can you test?

http://www.lst.de/~mm/libgphoto2-2.4.7.3.tar.bz2

Ciao, Marcus

------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now.  http://p.sf.net/sfu/bobj-july
_______________________________________________
Gphoto-user mailing list
Gphoto-user@...
https://lists.sourceforge.net/lists/listinfo/gphoto-user