USB Library
USB_CDC_UNION_FN_DSC Structure
Syntax
typedef struct _USB_CDC_UNION_FN_DSC {
  uint8_t bFNLength;
  uint8_t bDscType;
  uint8_t bDscSubType;
  uint8_t bMasterIntf;
  uint8_t bSaveIntf0;
} USB_CDC_UNION_FN_DSC;
Description

Union Functional Descriptor

Members
Members 
Description 
uint8_t bFNLength; 
Size of this functional descriptor, in uint8_ts. 
uint8_t bDscType; 
CS_INTERFACE 
uint8_t bDscSubType; 
Union Descriptor Functional Descriptor subtype as defined in [USBCDC1.2]. 
uint8_t bMasterIntf; 
Interface number of the control (Communications Class) interface 
uint8_t bSaveIntf0; 
Interface number of the subordinate (Data Class) interface 
MLA - USB Library Help Version : 2.16
http://www.microchip.com/mla