/* ----------------------------------------------------------------------------
 *         ATMEL Microcontroller Software Support 
 * ----------------------------------------------------------------------------
 * Copyright (c) 2008, Atmel Corporation
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/*
    Title: USBInterfaceRequest

    About: Purpose
        Implementation of USBInterfaceRequest class methods.
*/

//------------------------------------------------------------------------------
//         Headers
//------------------------------------------------------------------------------

#include "USBInterfaceRequest.h"

//------------------------------------------------------------------------------
//         Exported functions
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
/// Indicates which interface is targetted by a GET_INTERFACE or
/// SET_INTERFACE request.
/// \param request Pointer to a USBGenericRequest instance.
/// \return Interface number.
//------------------------------------------------------------------------------
unsigned char USBInterfaceRequest_GetInterface(const USBGenericRequest *request)
{
    return (USBGenericRequest_GetIndex(request) & 0xFF);
}

//------------------------------------------------------------------------------
/// Indicates the new alternate setting that the interface targetted by a
/// SET_INTERFACE request should use.
/// \param request Pointer to a USBGenericRequest instance.
/// \return New active setting for the interface.
//------------------------------------------------------------------------------
unsigned char USBInterfaceRequest_GetAlternateSetting(
    const USBGenericRequest *request)
{
    return (USBGenericRequest_GetValue(request) & 0xFF);
}