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Unread 26-01-2017, 14:30
Thad House Thad House is offline
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Re: ioctl Errors and Intermediate Vision sample not working

Quote:
Originally Posted by YairZiv View Post
ioctl Errors:
ERROR: ioctl VIDIOC_S_CTRL failed at UsbCameraProperty.cpp:72: Input/output error (UsbUtil.cpp:122)
ERROR: ioctl VIDIOC_S_EXT_CTRLS failed at UsbCameraProperty.cpp:66: Input/output error (UsbUtil.cpp:122)
ERROR: ioctl VIDIOC_S_EXT_CTRLS failed at UsbCameraProperty.cpp:66: Input/output error (UsbUtil.cpp:122)

What do they mean and how do I fix them?

Additionaly, I tried running the Intermediate VIsion example and when I changed the camera properties to the OpenCV output I got the following error:
ERROR: serve_Processed: : Too many simultaneous client streams (MjpegServerImpl.cpp:403)

What do these errors mean and how do I fix them?

Thanks in advance!
For the first errors, which properties are you trying to set? There as some properties that will fail to be set if a certain other property is at a specific setting. For an example, if the exposure type is set to auto (which it is by default) any attempt to set the exposure manually will print that error. Knowing which camera, and which property you are trying to set will help debug that.

We're taking a look into the too many streams issue. For now, make sure all dashboards are closed, all internet browsers are closed, and restart the program. It seems like something is opening multiple stream connections.
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