USBD_CDC_ACM_HandleTypeDef dubplicate data for NUMBER_OF_CDC?

[devOramaMan]

typedef struct
{
uint32_t data[NUMBER_OF_CDC][CDC_DATA_HS_MAX_PACKET_SIZE / 4U]; /* Force 32bits alignment */
uint8_t CmdOpCode;
uint8_t CmdLength;
uint8_t *RxBuffer;
uint8_t *TxBuffer;
uint32_t RxLength;
uint32_t TxLength;

__IO uint32_t TxState;
__IO uint32_t RxState;

} USBD_CDC_ACM_HandleTypeDef;

and

USBD_CDC_ACM_HandleTypeDef CDC_ACM_Class_Data[NUMBER_OF_CDC];

I couldn't quite understand from the code why data also has “NUMBER_OF_CDC” array aswell as the CDC_ACM_Class_Data. Is it something I’m missing?

[alambe94]

Yes, you are correct. [NUMBER_OF_CDC] is not necessary in USBD_CDC_ACM_HandleTypeDef.