com.pi4j.io.i2c.impl

Class I2CBusImplBananaPi

java.lang.Object

com.pi4j.io.i2c.impl.I2CBusImpl

com.pi4j.io.i2c.impl.I2CBusImplBananaPi

All Implemented Interfaces:

I2CBus

public class I2CBusImplBananaPi
extends I2CBusImpl

This is implementation of i2c bus. This class keeps underlying linux file descriptor of particular bus. As all reads and writes from/to i2c bus are blocked I/Os current implementation uses only one file per bus for all devices. Device implementations use this class file handle.

Author:

Daniel Sendula

Field Summary

Fields inherited from class com.pi4j.io.i2c.impl.I2CBusImpl

fd, filename

Fields inherited from interface com.pi4j.io.i2c.I2CBus

BUS_0, BUS_1

Constructor Summary

Constructors

Constructor and Description
I2CBusImplBananaPi(String filename) Constructor of i2c bus implementation.

Method Summary

Modifier and Type	Method and Description
void	close() Closes this i2c bus
static I2CBus	getBus(int busNumber) Factory method that returns bus implementation.

Methods inherited from class com.pi4j.io.i2c.impl.I2CBusImpl

getDevice, getFileDescriptor, getFileName

Methods inherited from class java.lang.Object

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

Constructor Detail

I2CBusImplBananaPi

public I2CBusImplBananaPi(String filename)
                   throws IOException

Constructor of i2c bus implementation.

Parameters:

filename - file name of device to be opened.

Throws:

IOException - thrown in case that file cannot be opened

Method Detail

getBus

public static I2CBus getBus(int busNumber)
                     throws IOException

Factory method that returns bus implementation.

Parameters:

busNumber - bus number

Returns:

appropriate bus implementation

Throws:

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

close

public void close()
           throws IOException

Closes this i2c bus

Specified by:

close in interface I2CBus

Overrides:

close in class I2CBusImpl

Throws:

IOException - never in this implementation