Some USB 2.0 cameras have an LED power indicator. Make sure that the camera is plugged into the USB port of the computer and has power.If this is how it is accessing attributes then the functionality may not be available through IMAQdx. However, AMCap is capable of hosting a custom user interface. A sample AMCap application is installed with Windows SDK. AMCap is a thin, low level application which allows for testing without many extra variables. Use Third Party Software to Test - There are third party applications, such as Microsoft's AMCap, that also interface with DirectShow.Enter the following: mxsr.exe -uconfig.mxs.Go to the MAX directory in by typing cd \Program Files\National Instruments\MAX.Make sure you close MAX when executing the command:
You should execute this command from a command prompt. Alternatively, use the following command to regenerate the configuration file.
To fix the corrupt database follow this tutorial, How to Fix or Reset the NI Measurement and Automation Explorer Database File.
NI drivers for USB 2.0 devices use the DirectShow interface of the manufacturer's device driver to communicate with the device. The manufacturer's device driver must be installed.Driver Installation - The camera driver allows the NI Software to interface with the camera.If not all attributes are available through the DirectShow programmatic API then only those available will be accessible with the NI-IMAQdx. Attributes need to be available through the DirectShow programmatic API in order to be accessed by the IMAQdx driver. Compliant Camera - USB 2.0 cameras must be compliant with the DirectShow specification to work with NI-IMAQdx or IMAQ for USB Cameras.
Note: You must log in as an administrator or have administrator privileges in Windows to install any NI software and hardware.