Hi,
On Mon, Dec 2, 2013 at 11:06 AM, Daniel P. Berrange <d...@berrange.com> wrote:
> On Sun, Dec 01, 2013 at 12:52:33AM +1300, Jehan Pagès wrote:
>> Hi,
>>
>> On Sat, Nov 30, 2013 at 11:01 PM, Daniel P. Berrange <d...@berrange.com>
>> wrote:
>> > On Fri, Nov 29, 2013 at 04:46:50PM +1300, Jehan Pagès wrote:
>> >> Hey,
>> >>
>> >> I saw these commits and focusing through entangle, which is an awesome
>> >> addition.
>> >> Unfortunately when I try any of [,.< >], I get a popup error:
>> >> «
>> >> Manual focus failed
>> >>
>> >> Manual focus control was not a range widget
>> >> »
>> >
>> > Urgh, so looking the gphoto2 code the Canon cameras support manual
>> > focus in a totally different way. Nikon cameras let you nudge the
>> > focus point in arbitrary steps / granularity. Canon seems to be
>> > limited to just 7 separate manual focus points which really sucks.
>> > So I'll have to write some more code to deal with canon for this.
>> >
>>
>> I see. Well indeed only 7 levels of granularity only does not look all
>> that useful. :-/
>
> Actually it is possible I mis-understood the way it works - I have a
> feeling it might actually be 3 deltas in each direction - eg small
> step change, medium step change, large step change.
>
>> > Can you try to test in gphoto2 shell eg just set the autofocus config
>> > parameter
>> >
>> > # gphoto --shell
>>
>> I assume you meant `gphoto2 --shell` because I can't see a command
>> `gphoto` in any package.
>>
>> > > set-config-value /main/actions/autofocusdrive=1
>> > ....
>> > > set-config-value /main/actions/autofocusdrive=1
>> > ....
>> > > set-config-value /main/actions/autofocusdrive=1
>> >
>> > and see if the camera hangs in the same way.
>>
>> Just tested. It does. No error showing in the gphoto2 shell, but the
>> camera shows busy forever. And same as in entangle, only the first
>> call would actually focus something. Any subsequent call still shows
>> no error, but no additional focus going on (of course, I moved the
>> camera to be sure the focus point would be different).
>>
>> Interestingly if I quit gphoto2 shell and enter it again, then rerun
>> the command, this time I get a "I/O in progress" error, which for once
>> looks consistent with the "busy" camera.
>>
>> Below a copy-paste. Text after a '#' are obviously comments I added on
>> the copy-paste, and were not written in the shell. :-)
>>
>> -------------------------------------------------------------------
>> $ gphoto2 --shell
>> gphoto2: {/mnt/dev/prog/crossroad} /> set-config-value
>> /main/actions/autofocusdrive=1 # <- only here a focus happen!
>> gphoto2: {/mnt/dev/prog/crossroad} /> set-config-value
>> /main/actions/autofocusdrive=1 # <- no focus made!
>> gphoto2: {/mnt/dev/prog/crossroad} />
>> $ gphoto2 --shell # <- here I restart gphoto2 shell but I did not
>> restart the camera after the previous commands.
>> gphoto2: {/mnt/dev/prog/crossroad} /> set-config-value
>> /main/actions/autofocusdrive=1
>>
>> *** Error ***
>> Failed to set new configuration value 1 for configuration entry
>> /main/actions/autofocusdrive.
>> *** Error (-110: 'I/O in progress') ***
>> gphoto2: {/mnt/dev/prog/crossroad} />
>> -------------------------------------------------------------------
>>
>> Is that to say that the problem is upstream? Or is there more that you
>> may have to understand to work with a Canon camera and gphoto2?
>
> Ok, this is useful information. This is almost certainly a libgphoto2
> bug. The best thing todo is to report this problem to the ligphoto2
> mailing list directly. When reporting this, run the same 'gphoto2'
> commands above, but adding the --debug when launching it. Then add
> the debug logs as an attachment - that should give their devs enough
> info to start debugging the problem.
Ok I will do. I will start by installing the dev version of gphoto2
first though. Maybe that's something already fixed in the source repo.
Thanks.
Jehan
> Regards,
> Daniel
> --
> |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :|
> |: http://libvirt.org -o- http://virt-manager.org :|
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