Eye tracker not detected on pupil capture

[bila...@gmail.com]

I am trying to run pupil capture on a Scientific Linux 7. The fake capture is working. However, it is not detecting the eye tracker hardware. The eye tracker is connected through USB. When I select 'Local USB' on the 'Manager' drop down under 'Capture Selection'. Under the 'Activate source' drop down menu three unknown sources. Whichever is selected, it says "WORLD: The selected camera is already in use or blocked". What could be the problem?

[Pupil Labs Info]

Hi,

I m quite sure this has to do with USB user permissions. If you run as sudo it should work.

the proper way is to add your user to the 'plugdev' group.

```sh

sudo useradd -G plugdev USERNAME

```

Best,

Moritz

On Wed, May 31, 2017 at 8:15 PM, <bila...@gmail.com> wrote:

I am trying to run pupil capture on a Scientific Linux 7. The fake capture is working. However, it is not detecting the eye tracker hardware. The eye tracker is connected through USB. When I select 'Local USB' on the 'Manager' drop down under 'Capture Selection'. Under the 'Activate source' drop down menu three unknown sources. Whichever is selected, it says "WORLD: The selected camera is already in use or blocked". What could be the problem?

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[bila...@gmail.com]

On Thursday, June 1, 2017 at 12:18:36 PM UTC+2, info wrote:
> Hi,
>
>
> I m quite sure this has to do with USB user permissions. If you run as sudo it should work.
>
>
> the proper way is to add your user to the 'plugdev' group.
>
>
>
>
> ```sh
> sudo useradd -G plugdev USERNAME
>
> ```
>
>
> Best,
> Moritz
>
>
>
>
> On Wed, May 31, 2017 at 8:15 PM, <bila...@gmail.com> wrote:
> I am trying to run pupil capture on a Scientific Linux 7. The fake capture is working. However, it is not detecting the eye tracker hardware. The eye tracker is connected through USB. When I select 'Local USB' on the 'Manager' drop down under 'Capture Selection'. Under the 'Activate source' drop down menu three unknown sources. Whichever is selected, it says "WORLD: The selected camera is already in use or blocked". What could be the problem?
>
>
>
> --
>
> You received this message because you are subscribed to the Google Groups "pupil-discuss" group.
>

> To unsubscribe from this group and stop receiving emails from it, send an email to pupil-discus...@googlegroups.com.

>
> To post to this group, send email to pupil-...@googlegroups.com.
>
> To view this discussion on the web visit https://groups.google.com/d/msgid/pupil-discuss/e3b08626-1dcb-43ef-8535-370c67689853%40googlegroups.com.
>
> For more options, visit https://groups.google.com/d/optout.
>
>
>
>
>
> --
>
>
>
> Pupil Labs
> research + development + design
> in...@pupil-labs.com
>
> www.pupil-labs.com

Hi Moritz,

Thank you. It worked when I ran it as sudo. It was indeed due to USB user permissions.

Best regards,
Bilal Chaudhry

[Pupil Labs Info]

Hi,

glad to hear this is resolved.

best,

M

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