Package com.diozero.internal.provider.builtin.gpio

Class GpioChip

java.lang.Object

com.diozero.internal.provider.builtin.gpio.GpioChipInfo

com.diozero.internal.provider.builtin.gpio.GpioChip

All Implemented Interfaces:

GpioLineEventListener, AutoCloseable

public class GpioChip
extends GpioChipInfo
implements AutoCloseable, GpioLineEventListener

Field Summary

Fields

Modifier and Type	Field	Description
static int	GPIOEVENT_EVENT_FALLING_EDGE
static int	GPIOEVENT_EVENT_RISING_EDGE

Method Summary

Modifier and Type	Method	Description
void	close()
void	deregister(int lineFd)
void	event(int lineFd, int eventDataId, long epochTimeMs, long timestampNanos)
int	getChipId()
static List<GpioChipInfo>	getChips()
GpioLine	getLineByName(String name)
int	getLineOffset()
GpioLine[]	getLines()
static Map<Integer,GpioChip>	openAllChips()
static GpioChip	openChip(int chipNum)
static GpioChip	openChip(String chipDeviceFile)
GpioLine	provisionGpioInputDevice(int offset, GpioPullUpDown pud, GpioEventTrigger trigger)
GpioLine	provisionGpioOutputDevice(int offset, int initialValue)
void	register(int fd, GpioLineEventListener listener)

Methods inherited from class com.diozero.internal.provider.builtin.gpio.GpioChipInfo

getLabel, getName, getNumLines

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

GPIOEVENT_EVENT_RISING_EDGE

public static final int GPIOEVENT_EVENT_RISING_EDGE

See Also:

Constant Field Values

GPIOEVENT_EVENT_FALLING_EDGE

public static final int GPIOEVENT_EVENT_FALLING_EDGE

See Also:

Constant Field Values

Method Detail

openAllChips

public static Map<Integer,GpioChip> openAllChips()
                                                throws IOException

Throws:

IOException

getChips

public static List<GpioChipInfo> getChips()

openChip

public static GpioChip openChip(int chipNum)

openChip

public static GpioChip openChip(String chipDeviceFile)

getChipId

public int getChipId()

getLineOffset

public int getLineOffset()

getLines

public GpioLine[] getLines()

getLineByName

public GpioLine getLineByName(String name)

provisionGpioInputDevice

public GpioLine provisionGpioInputDevice(int offset,
                                         GpioPullUpDown pud,
                                         GpioEventTrigger trigger)

provisionGpioOutputDevice

public GpioLine provisionGpioOutputDevice(int offset,
                                          int initialValue)

close

public void close()

Specified by:

close in interface AutoCloseable

register

public void register(int fd,
                     GpioLineEventListener listener)

deregister

public void deregister(int lineFd)

event

public void event(int lineFd,
                  int eventDataId,
                  long epochTimeMs,
                  long timestampNanos)

Specified by:

event in interface GpioLineEventListener