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/**
 \unit

 !!!Purpose

 Definition of the CDCHeaderDescriptor class.

 !!!Usage

 Should be included in a USB configuration descriptor.
*/

#ifndef CDCHEADERDESCRIPTOR_H
#define CDCHEADERDESCRIPTOR_H

//------------------------------------------------------------------------------
//         Types
//------------------------------------------------------------------------------

#ifdef __ICCARM__          // IAR
#pragma pack(1)            // IAR
#define __attribute__(...) // IAR
#endif                     // IAR

//------------------------------------------------------------------------------
/// Marks the beginning of the concatenated set of functional descriptors
/// for the interface.
//------------------------------------------------------------------------------
typedef struct {

    /// Size of this descriptor in bytes.
    unsigned char bFunctionLength;
    /// Descriptor type (CDCDescriptors_INTERFACE).
    unsigned char bDescriptorType;
    /// Descriptor sub-type (CDCDescriptors_HEADER).
    unsigned char bDescriptorSubtype;
    /// USB CDC specification release number.
    unsigned short bcdCDC;

} __attribute__ ((packed)) CDCHeaderDescriptor; // GCC

#ifdef __ICCARM__          // IAR
#pragma pack()             // IAR
#endif                     // IAR

#endif //#ifndef CDCHEADERDESCRIPTOR_H