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A590IS and A1100 frezz on remote shoot

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A590IS and A1100 frezz on remote shoot
« on: 19 / November / 2014, 13:30:54 »
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Hi all, i`m complete newbie with CHDK, i`m developing book scanner for home use and found great script Spreads (https://github.com/DIYBookScanner/spreads) which uses chdkptp to communicate with cameras. I have two cameras A590IS and A1100 that works perfectly (I mostly use auto yum and remote shoot) on windows xp with chdkptp (chdkptp-r658-win32.zip). I start A1100 with play  button (not on/off) and it is ready to go, A590IS i start in play mode and it is ok (all in xp). In linux, lubuntu 14.04.1 LTS fresh install I have a couple of problems:


- A590IS won`t switch to rec mode if i start it as in xp, if I start it in rec mode computer does not see it
Code: [Select]
(.spreads)[email protected]:~$ /usr/local/lib/chdkptp/chdkptp -i -c
connected: Canon PowerShot A590 IS, max packet size 512
con> rec
ERROR: switch failed
con 4>

- A1100 goes to rec mode but when I type shoot it just power off camera leaving it in rec mode and i get this output:
Code: [Select]
(.spreads)[email protected]:~$ /usr/local/lib/chdkptp/chdkptp -i -c
connected: Canon PowerShot A1100 IS, max packet size 512
con> rec
con 1> shoot
ERROR: I/O error
___>

I get same results if i install CHDK 1.2 or 1.3 on cameras via stick.

Can someone please help me with this, I was searching for the problem on forum but couldn`t find the answer.
Thanx

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Re: A590IS and A1100 frezz on remote shoot
« Reply #1 on: 19 / November / 2014, 22:36:51 »
Can someone please help me with this, I was searching for the problem on forum but couldn`t find the answer.
This is most likely due to something in the udev rules accessing the camera automatically when you plug it in. After certain (standard, non CHDK) PTP commands have been sent to the camera, CHDK can no longer switch to rec mode.

See this thread http://chdk.setepontos.com/index.php?topic=10664.msg115401#msg115401

Some related discussion in http://chdk.setepontos.com/index.php?topic=6231.msg100671#msg100671
Don't forget what the H stands for.

Re: A590IS and A1100 frezz on remote shoot
« Reply #2 on: 20 / November / 2014, 00:25:12 »
Yes it was gphoto that was automatically taking control ower the cameras, when I killed a process and disabled it from running every thing worked as it should.

Thanx for help

 

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