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+/* ----------------------------------------------------------------------------
+ * ATMEL Microcontroller Software Support
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ----------------------------------------------------------------------------
+ */
+
+/**
+ \unit
+
+ !!!Purpose
+
+ Definition of a class for manipulating CDC union descriptors.
+
+ !!!Usage
+
+ Should be included in the list of USB descriptor used for a device
+ configuration.
+*/
+
+#ifndef CDCUNIONDESCRIPTOR_H
+#define CDCUNIONDESCRIPTOR_H
+
+//------------------------------------------------------------------------------
+// Types
+//------------------------------------------------------------------------------
+
+#ifdef __ICCARM__ // IAR
+#pragma pack(1) // IAR
+#define __attribute__(...) // IAR
+#endif // IAR
+
+//------------------------------------------------------------------------------
+/// Describes the relationship between a group of interfaces that can
+/// be considered to form a functional unit.
+//------------------------------------------------------------------------------
+typedef struct {
+
+ /// Size of the descriptor in bytes.
+ unsigned char bFunctionLength;
+ /// Descriptor type (CDCDescriptors_INTERFACE).
+ unsigned char bDescriptorType;
+ /// Descriptor subtype (CDCDescriptors_UNION).
+ unsigned char bDescriptorSubtype;
+ /// Number of the master interface for this union.
+ unsigned char bMasterInterface;
+ /// Number of the first slave interface for this union.
+ unsigned char bSlaveInterface0;
+
+} __attribute__ ((packed)) CDCUnionDescriptor; // GCC
+
+#ifdef __ICCARM__ // IAR
+#pragma pack() // IAR
+#endif // IAR
+
+#endif //#ifndef CDCUNIONDESCRIPTOR_H
+
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