USB Libraries Help > USB Device Libraries > USB CDC Device Library > Library Interface > b) Data Types and Constants > USB_CDC_ACM_SUPPORT_COMM_FEATURE Macro
MPLAB Harmony USB Stack
USB_CDC_ACM_SUPPORT_COMM_FEATURE Macro

This is macro USB_CDC_ACM_SUPPORT_COMM_FEATURE.

C
#define USB_CDC_ACM_SUPPORT_COMM_FEATURE ( 1 << 0 )