X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/654baf7d609963cf25da328f2b3fc8ced0eaf68a..f42a4f3a47f23208d70dca308d302d9ba5a80c46:/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c

diff --git a/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c b/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c
index eaba6185a..746a00725 100644
--- a/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c
+++ b/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2013.
+     Copyright (C) Dean Camera, 2015.
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
-  Copyright 2013  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2015  Dean Camera (dean [at] fourwalledcubicle [dot] com)
 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
@@ -45,7 +45,7 @@ USB_ClassInfo_CDC_Device_t VirtualSerial1_CDC_Interface =
 	{
 		.Config =
 			{
-				.ControlInterfaceNumber   = 0,
+				.ControlInterfaceNumber   = INTERFACE_ID_CDC1_CCI,
 				.DataINEndpoint           =
 					{
 						.Address          = CDC1_TX_EPADDR,
@@ -76,7 +76,7 @@ USB_ClassInfo_CDC_Device_t VirtualSerial2_CDC_Interface =
 	{
 		.Config =
 			{
-				.ControlInterfaceNumber   = 2,
+				.ControlInterfaceNumber   = INTERFACE_ID_CDC2_CCI,
 				.DataINEndpoint           =
 					{
 						.Address          = CDC2_TX_EPADDR,
@@ -216,3 +216,27 @@ void EVENT_USB_Device_ControlRequest(void)
 	CDC_Device_ProcessControlRequest(&VirtualSerial2_CDC_Interface);
 }
 
+/** CDC class driver callback function the processing of changes to the virtual
+ *  control lines sent from the host..
+ *
+ *  \param[in] CDCInterfaceInfo  Pointer to the CDC class interface configuration structure being referenced
+ */
+void EVENT_CDC_Device_ControLineStateChanged(USB_ClassInfo_CDC_Device_t *const CDCInterfaceInfo)
+{
+	/* You can get changes to the virtual CDC lines in this callback; a common
+	   use-case is to use the Data Terminal Ready (DTR) flag to enable and
+	   disable CDC communications in your application when set to avoid the
+	   application blocking while waiting for a host to become ready and read
+	   in the pending data from the USB endpoints.
+	*/
+	bool HostReady = (CDCInterfaceInfo->State.ControlLineStates.HostToDevice & CDC_CONTROL_LINE_OUT_DTR) != 0;
+
+	if (CDCInterfaceInfo == &VirtualSerial1_CDC_Interface)
+	{
+		// CDC interface 1's host is ready to send/receive data
+	}
+	else
+	{
+		// CDC interface 2's host is ready to send/receive data
+	}
+}