- * \param[in] Data Pointer to the string to send to the host.
- * \param[in] Length Size in bytes of the string to send to the host.
+ * \param[in] Buffer Pointer to a buffer containing the data to send to the device.
+ * \param[in] Length Length of the data to send to the host.
+ *
+ * \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum.
+ */
+ uint8_t CDC_Device_SendData(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo,
+ const char* const Buffer,
+ const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
+ /** Sends a given null terminated string to the attached USB host, if connected. If a host is not connected when
+ * the function is called, the string is discarded. Bytes will be queued for transmission to the host until either
+ * the endpoint bank becomes full, or the \ref CDC_Device_Flush() function is called to flush the pending data to
+ * the host. This allows for multiple bytes to be packed into a single endpoint packet, increasing data throughput.
+ *
+ * \pre This function must only be called when the Device state machine is in the \ref DEVICE_STATE_Configured state or
+ * the call will fail.
+ *
+ * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state.
+ * \param[in] String Pointer to the null terminated string to send to the host.