Re: Debian 11 issues

Thank you Marcus. Problem solved after updating to 2.5.29.


--------------------------------

Thank you,



Michael Zhang



----- Original Message -----
From: Marcus Meissner <[email protected]>
To: zhangxiuchuan <[email protected]>
Cc: gphoto-devel <[email protected]>
Subject: Re: [gphoto-devel] Debian 11 issues
Date: 2022-04-18 19:13

Hi,
On Sat, Apr 16, 2022 at 04:26:14AM +0800, zhangxiuchuan wrote:
> Hello,
> 
> I've used gphoto2 to control DSLR cameras (Canon EOS
> T3i, T7, SL3, etc.) on Debian 8~10 for years without any issues. I've been
> testing my cameras on Debian 11 these days and found some issues.
> 
> After running some basic commands like gphoto2
> --list-config on a laptop with Debian 11, the EOS T3i and SL3 are locked and
> cannot be triggered by pressing the capture button, and the command gphoto2
> --set-config opcode=0 does not work which is good on Debian 8~10. Although the EOS T7 is
> not locked, gphoto2 --set-config opcode=0 doesn't work either.
> 
> I tried these cameras on a Raspberry pi 4B with
> Bullseye OS and the results were the same as on my laptop with Debian 11.
> 
> It looks like these problems are related to Debian 11.
> Is it possible to solve them?
This is something related to the libgphoto2 version, we changed the logic
of unlocking EOS on exit a bit over time.
In 2.5.29 it is unlocking the EOS at the end, with a bit more refined
code in the next release (or current libgphoto2 git).
--set-config opcode=0 	is not valid, there usually is a 4 digit hexnumber
missing (--set-config opcode=0x1001 or similar)
Ciao, Marcus

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