Package com.diozero.internal.provider.builtin

Class DefaultNativeSpiDevice

java.lang.Object

com.diozero.internal.spi.AbstractDevice

com.diozero.internal.provider.builtin.DefaultNativeSpiDevice

All Implemented Interfaces:

DeviceInterface, SpiDeviceInterface, InternalDeviceInterface, InternalSpiDeviceInterface, AutoCloseable

public class DefaultNativeSpiDevice
extends AbstractDevice
implements InternalSpiDeviceInterface

Constructor Summary

Constructors

Constructor	Description
DefaultNativeSpiDevice(DeviceFactoryInterface deviceFactory, String key, int controller, int chipSelect, int frequency, SpiClockMode spiClockMode, boolean lsbFirst)

Method Summary

Modifier and Type	Method	Description
protected void	closeDevice()
int	getChipSelect()	Get the SPI Chip Select
int	getController()	Get the SPI controller
void	write(byte... txBuffer)	Write the entire contents of data to the device
void	write(byte[] txBuffer, int txOffset, int length)	Write length bytes from data starting at offset
byte[]	writeAndRead(byte... txBuffer)	Write the data to the device then read data.length bytes from the device

Methods inherited from class com.diozero.internal.spi.AbstractDevice

close, getDeviceFactory, getKey, isOpen

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.diozero.api.DeviceInterface

close

Methods inherited from interface com.diozero.internal.spi.InternalDeviceInterface

getKey, isOpen

Constructor Details

DefaultNativeSpiDevice

public DefaultNativeSpiDevice(DeviceFactoryInterface deviceFactory,
String key,
int controller,
int chipSelect,
int frequency,
SpiClockMode spiClockMode,
boolean lsbFirst)

Method Details

closeDevice

protected void closeDevice()
                    throws RuntimeIOException

Specified by:

closeDevice in class AbstractDevice

Throws:

RuntimeIOException

getController

public int getController()

Description copied from interface: SpiDeviceInterface

Get the SPI controller

Specified by:

getController in interface SpiDeviceInterface

Returns:

the SPI controller

getChipSelect

public int getChipSelect()

Description copied from interface: SpiDeviceInterface

Get the SPI Chip Select

Specified by:

getChipSelect in interface SpiDeviceInterface

Returns:

the SPI chip select

write

public void write(byte... txBuffer)

Description copied from interface: SpiDeviceInterface

Write the entire contents of data to the device

Specified by:

write in interface SpiDeviceInterface

Parameters:

txBuffer - the data to write

write

public void write(byte[] txBuffer,
int txOffset,
int length)

Description copied from interface: SpiDeviceInterface

Write length bytes from data starting at offset

Specified by:

write in interface SpiDeviceInterface

Parameters:

txBuffer - the data to write.

txOffset - the start offset in the data.

length - the number of bytes to write.

writeAndRead

public byte[] writeAndRead(byte... txBuffer)
                    throws RuntimeIOException

Description copied from interface: SpiDeviceInterface

Write the data to the device then read data.length bytes from the device

Specified by:

writeAndRead in interface SpiDeviceInterface

Parameters:

txBuffer - the data to write.

Returns:

the data read from the device, same length as the data written.

Throws:

RuntimeIOException - if an I/O error occurs