haiku/headers/os/device/DigitalPort.h

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/********************************************************************************
/
/ File: DigitalPort.h
/
/ Description: Digital Port class header.
/
/ Copyright 1996-98, Be Incorporated, All Rights Reserved.
/
********************************************************************************/
#ifndef _DIGITAL_PORT_H
#define _DIGITAL_PORT_H
#include <BeBuild.h>
#include <stddef.h>
#include <SupportDefs.h>
/* -----------------------------------------------------------------------*/
class BDigitalPort {
public:
BDigitalPort();
virtual ~BDigitalPort();
status_t Open(const char *portName);
void Close(void);
bool IsOpen(void);
ssize_t Read(uint8 *buf);
ssize_t Write(uint8 value);
status_t SetAsOutput (void);
bool IsOutput (void);
status_t SetAsInput (void);
bool IsInput (void);
/* -----------------------------------------------------------------------*/
private:
virtual void _ReservedDigitalPort1();
virtual void _ReservedDigitalPort2();
virtual void _ReservedDigitalPort3();
int ffd;
bool fIsInput;
uint32 _fReserved[3];
};
#endif