com.pi4j.io.i2c.impl

Class I2CProviderImpl

java.lang.Object

com.pi4j.io.i2c.impl.I2CProviderImpl

All Implemented Interfaces:

I2CFactoryProvider

Direct Known Subclasses:

I2CFactoryProviderBananaPi, I2CFactoryProviderOdroid, I2CFactoryProviderRaspberryPi

public abstract class I2CProviderImpl
extends Object
implements I2CFactoryProvider

Constructor Summary

Constructors

Constructor and Description
I2CProviderImpl()

Method Summary

Modifier and Type	Method and Description
protected static void	closeBus(int busNumber, long lockAquireTimeout, TimeUnit lockAquireTimeoutUnit, Callable<Void> closeAction)
protected static I2CBus	getBus(int busNumber, Callable<I2CBusImpl> constructor, long lockAquireTimeout, TimeUnit lockAquireTimeoutUnit) Factory method that returns bus implementation.
I2CBus	getBus(int busNumber, long lockAquireTimeout, TimeUnit lockAquireTimeoutUnit)
protected abstract String	getFilenameForBusnumber(int busNumber)

Methods inherited from class java.lang.Object

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

Constructor Detail

I2CProviderImpl

public I2CProviderImpl()

Method Detail

getBus

protected static I2CBus getBus(int busNumber,
                               Callable<I2CBusImpl> constructor,
                               long lockAquireTimeout,
                               TimeUnit lockAquireTimeoutUnit)
                        throws I2CFactory.UnsupportedBusNumberException,
                               IOException

Factory method that returns bus implementation.

Parameters:

newInstanceCandidate - if no bus has been created yet, this instance is used

Returns:

appropriate bus implementation

Throws:

IOException - thrown in case there is a problem opening bus file or bus number is not 0 or 1.

I2CFactory.UnsupportedBusNumberException

closeBus

protected static void closeBus(int busNumber,
                               long lockAquireTimeout,
                               TimeUnit lockAquireTimeoutUnit,
                               Callable<Void> closeAction)

getBus

public I2CBus getBus(int busNumber,
                     long lockAquireTimeout,
                     TimeUnit lockAquireTimeoutUnit)
              throws I2CFactory.UnsupportedBusNumberException,
                     IOException

Specified by:

getBus in interface I2CFactoryProvider

Throws:

I2CFactory.UnsupportedBusNumberException

IOException

getFilenameForBusnumber

protected abstract String getFilenameForBusnumber(int busNumber)
                                           throws I2CFactory.UnsupportedBusNumberException

Throws:

I2CFactory.UnsupportedBusNumberException