- /** Macro to define a CDC class-specific functional descriptor. CDC functional descriptors have a
- * uniform structure but variable sized data payloads, thus cannot be represented accurately by
- * a single typedef struct. A macro is used instead so that functional descriptors can be created
- * easily by specifying the size of the payload. This allows sizeof() to work correctly.
- *
- * \param[in] DataSize Size in bytes of the CDC functional descriptor's data payload
- */
- #define CDC_FUNCTIONAL_DESCRIPTOR(DataSize) \
- struct \
- { \
- USB_Descriptor_Header_t Header; \
- uint8_t SubType; \
- uint8_t Data[DataSize]; \
- }
-