On setting focus on Canon A4000is - page 2 - Script Writing - CHDK Forum
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On setting focus on Canon A4000is

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Offline manoweb

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Re: On setting focus on Canon A4000is
« Reply #10 on: 17 / July / 2015, 03:57:30 »
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Quote from: reyalp on 16 / July / 2015, 17:59:25
Normally you would get this from the CHDK menu, but if your cameras physical controls aren't accessible, you should be able to use the romlog.lua script like

Unfortunately it seems I might need a different version of the CHDK compared the one I have downloaded and installed:

Code: [Select]
# ./chdkptp.sh
___> connect
connected: Canon PowerShot A4000 IS, max packet size 512
con> =loadfile('A/CHDK/SCRIPTS/TEST/romlog.lua')()
no match A/CHDK/SCRIPTS/TEST/romlog.lua:19: native calls disabled
ERROR: A/CHDK/SCRIPTS/TEST/romlog.lua:19: native calls disabled
I had one of those automated tools download the correct image for my camera, but it should be a4000-102a-1.3.0-4169-full_ALPHA.zip
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Offline waterwingz

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Re: On setting focus on Canon A4000is
« Reply #11 on: 17 / July / 2015, 08:12:04 »
Quote from: manoweb on 17 / July / 2015, 03:57:30
Unfortunately it seems I might need a different version of the CHDK compared the one I have downloaded and installed:
Your version is correct.  Go to the CHDK Miscellaneous Stuff menu and select  Enable Lua Native Calls [ * ]


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Offline manoweb

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Re: On setting focus on Canon A4000is
« Reply #12 on: 17 / July / 2015, 14:02:49 »
It seems to me the case of a cat that tries to bite its own tail. I need to access the controls through the GUI of chdkptp because the camera is in an expensive to open box; but it crashes, so I need to retrieve the debug log; but to do so I have to issue some commands on the controls.

Unless there is a way to enable native commands (why are they disabled in the first place?) form the chdkptp command line?

Thank you!
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Offline reyalp

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Re: On setting focus on Canon A4000is
« Reply #13 on: 17 / July / 2015, 16:08:14 »
Quote from: manoweb on 17 / July / 2015, 14:02:49
It seems to me the case of a cat that tries to bite its own tail. I need to access the controls through the GUI of chdkptp because the camera is in an expensive to open box; but it crashes, so I need to retrieve the debug log; but to do so I have to issue some commands on the controls.

Unless there is a way to enable native commands (why are they disabled in the first place?) form the chdkptp command line?
Sorry, I forgot about this :(

There currently isn't a way to enable them over PTP.

If you have another camera that isn't in the box, you could enable them and then copy the CFG file.  Zeno's CFG editor http://zenoshrdlu.com/cfgedit/chdkcfgedit.html might also let you do this.

Another option is to build your own CHDK with native calls permanently enabled, using OPT_FORCE_LUA_CALL_NATIVE=1 in your localbuildconf.inc. I think the chdkde builds (see http://forum.chdk-treff.de/download.php) are set this way by default, so you could use one of those.

Native calls are disabled by default because it makes it trivial to write a script that would permanently brick the camera.
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