at91work/at91lib/usb/common/cdc/CDCHeaderDescriptor.h

78 lines
2.9 KiB
C

/* ----------------------------------------------------------------------------
* 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,
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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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