- /** Sends a Serial Control Line State Change notification to the host. This should be called when the virtual serial control\r
- * lines (DCD, DSR, etc.) have changed states, or to give BREAK notfications to the host. Line states persist until they are\r
- * cleared via a second notification.\r
+ /** Sends a Serial Control Line State Change notification to the host. This should be called when the virtual serial\r
+ * control lines (DCD, DSR, etc.) have changed states, or to give BREAK notifications to the host. Line states persist\r
+ * until they are cleared via a second notification. This should be called each time the CDC class driver's \r
+ * ControlLineStates.DeviceToHost value is updated to push the new states to the USB host.\r
+ *\r
+ * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state\r
+ */\r
+ void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);\r
+\r
+ /** Creates a standard characer stream for the given CDC Device instance so that it can be used with all the regular\r
+ * functions in the avr-libc <stdio.h> library that accept a FILE stream as a destination (e.g. fprintf). The created\r
+ * stream is bidirectional and can be used for both input and output functions.\r
+ *\r
+ * Reading data from this stream is non-blocking, i.e. in most instances, complete strings cannot be read in by a single\r
+ * fetch, as the endpoint will not be ready at some point in the transmission, aborting the transfer. However, this may\r
+ * be used when the read data is processed byte-per-bye (via getc()) or when the user application will implement its own\r
+ * line buffering.\r
+ *\r
+ * \note The created stream can be given as stdout if desired to direct the standard output from all <stdio.h> functions\r
+ * to the given CDC interface.\r
+ *\r
+ * \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state\r
+ * \param[in,out] Stream Pointer to a FILE structure where the created stream should be placed\r
+ */\r
+ void CDC_Device_CreateStream(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo, FILE* Stream);\r
+\r
+ /** Identical to CDC_Device_CreateStream(), except that reads are blocking until the calling stream function terminates\r
+ * the transfer. While blocking, the USB and CDC service tasks are called repeatedly to maintain USB communications.\r