Experimental Physics and
Industrial Control System

On 12/14/21 8:55 AM, Gofron, Kazimierz via Tech-talk wrote:
> kgofron@xf11id-m3:/epics/iocs$ arv-tool-0.8 -d all
> [18:33:23.193] 🆆 interface> Failed to open USB device
...

When trying to understand maddeningly non-specific error messages
like this, I find 'strace' to be helpful.  eg.

> strace -f -e trace=%file arv-tool-0.8 -d all

This should print every syscall which includes a file/path name.
I would then search the (likely very verbose) output for mentions
of "/dev" and/or "EPERM".

References:

arv-tools not detecting USB3 camera Gofron, Kazimierz via Tech-talk

RE: arv-tools not detecting USB3 camera Engbretson, Mark S. via Tech-talk

Re: arv-tools not detecting USB3 camera Gofron, Kazimierz via Tech-talk

RE: arv-tools not detecting USB3 camera Engbretson, Mark S. via Tech-talk

Re: arv-tools not detecting USB3 camera Gofron, Kazimierz via Tech-talk

RE: arv-tools not detecting USB3 camera Mark Rivers via Tech-talk

Re: arv-tools not detecting USB3 camera Gofron, Kazimierz via Tech-talk

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