from usbh_def.h:431
typedef struct
{
uint8_t CfgDesc_Raw[USBH_MAX_SIZE_CONFIGURATION];
uint8_t Data[USBH_MAX_DATA_BUFFER];
uint8_t address;
uint8_t speed;
uint8_t EnumCnt;
uint8_t RstCnt;
__IO uint8_t is_connected;
__IO uint8_t is_disconnected;
__IO uint8_t is_ReEnumerated;
uint8_t PortEnabled;
uint8_t current_interface;
USBH_DevDescTypeDef DevDesc;
USBH_CfgDescTypeDef CfgDesc;
} USBH_DeviceTypeDef;