Some RT targets have support for onboard USB hardware. You can connect an external USB Communications Device Class (CDC) ACM device to a USB port of an RT target and then access the device from VIs running on the RT target. To access the device, modify and use existing driver VIs that are configured for serial communication and use NI-VISA to communicate with the device.
Complete the following steps to modify a driver to communicate with a USB device.
|Note When you modify drivers that are configured for serial communication, you do not need to specify values for serial-specific properties.|