User`s guide

Linux Video Hardware
16-39
Linux Video Hardware
Troubleshooting Linux Video Devices
If you have trouble using the Image Acquisition Toolbox software with a supported Linux
Video acquisition device, follow these recommended troubleshooting steps:
1
Verify that your image acquisition hardware functions properly and that you have
permission to access it.
Be sure that your system and login have the proper permissions to access the
hardware. See your system administrator if you need help.
You can verify that your hardware functions properly by running the WebCam
application that came with your Linux distribution, for example, Cheese or
Camorama.
If you can start the utility, run the utility, and close it without encountering any
errors, the toolbox should be able to operate with your image acquisition device. If
you encounter errors, resolve them before attempting to use the toolbox with the
device.
2
With previous versions of the Image Acquisition Toolbox, the files for all of the
adaptors were included in your installation. Starting with version R2014a, each
adaptor is available separately through the Support Package Installer. In order to
use the Image Acquisition Toolbox, you must install the adaptor that your camera
uses, in this case, the OS Generic Video Interface support package. See “Image
Acquisition Support Packages for Hardware Adaptors” on page 4-2 for information
about installing the adaptors.
3
If your hardware is functioning properly, verify that you are using hardware device
drivers that are compatible with the toolbox.
• Determine the driver version you are using on your system. The Image
Acquisition Toolbox software is only compatible with Video 4 Linux 2 drivers.
It is not supported for Video 4 Linux 1. (You may be able to get it to work – see
the next step.) Contact the hardware manufacturer to determine if the driver
provided with your hardware conforms to these driver classes.
• Verify that the version is compatible with the Image Acquisition Toolbox
software. For the correct driver information, check the list of supported drivers