usbstringdescriptor.h

Atmel的AT91SAM9263芯片的usb存储源程序

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/*
    Title: USBStringDescriptor

    About: Purpose
        Definition of a class for manipulating String descriptors.
*/

#ifndef USBSTRINGDESCRIPTOR_H
#define USBSTRINGDESCRIPTOR_H

//------------------------------------------------------------------------------
//         Definitions
//------------------------------------------------------------------------------
/*
    Constants: Language IDs
        USBStringDescriptor_ENGLISH_US - Language ID for US english.
*/
#define USBStringDescriptor_ENGLISH_US          0x09, 0x04

/*
    Macros:
        USBStringDescriptor_LENGTH - Calculates the length of a string
            descriptor given the number of ascii characters/language IDs in it.
        USBStringDescriptor_UNICODE - Converts an ascii character to its
            unicode representation.
*/
#define USBStringDescriptor_LENGTH(length)      ((length) * 2 + 2)
#define USBStringDescriptor_UNICODE(ascii)      (ascii), 0

#endif //#ifndef USBSTRINGDESCRIPTOR_H