USB Video Device List

USB Video Device List block


Simulink® Real-Time™ Library for USB Camera


When you connect a USB Video Class (UVC) webcam to the target computer, the USB Video Device List block probes the device and displays the manufacturer information of the webcam. Based on this information, the block configures its parameters with supported options. You can choose the configuration parameters required by your USB webcam, and then name the configuration for future use.

When you add the From USB Video Device block to your model, add the USB Video Device List block. You need the USB Video Device List block to configure the webcam.

Block Parameters


Select the manufacturer for the installed webcam.


Select an image format that the connected webcam supports, for example, MJPEG.


Select a supported resolution for the image.


Select the sample time for the video frame.


Use this parameter to store and name a particular configuration. A configuration consists of the settings that you select for a particular webcam.

After you select the options in the other parameters:

  1. In the edit field, enter a name for the configuration.

  2. Click the Add button to add the configuration.

To remove the configuration, click the Remove button.

Reload Device List

Click this button to refresh the list of webcam information. Clicking this button also updates the mask and parameters for the From USB Video Device block.

Introduced in R2011a

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