ev3dev.utils

Class Sysfs

java.lang.Object

ev3dev.utils.Sysfs

public class Sysfs
extends java.lang.Object

The class responsible to interact with Sysfs on EV3Dev

Field Summary

Fields

Modifier and Type	Field and Description
private static Logger	log

Constructor Summary

Constructors

Constructor and Description
Sysfs()

Method Summary

Modifier and Type	Method and Description
static boolean	existFile(java.nio.file.Path pathToFind)
static boolean	existPath(java.lang.String filePath) This method is used to detect folders in /sys/class/
static java.util.List<java.io.File>	getElements(java.lang.String filePath)
static float	readFloat(java.lang.String filePath)
static int	readInteger(java.lang.String filePath) Read an Attribute in the Sysfs with containing Integer values
static java.lang.String	readString(java.lang.String filePath) Read an Attribute in the Sysfs with containing String values
static boolean	writeBytes(java.lang.String path, byte[] value)
static boolean	writeInteger(java.lang.String filePath, int value)
static boolean	writeString(java.lang.String filePath, java.lang.String value) Write a value in a file.

Methods inherited from class java.lang.Object

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

Field Detail

log

private static final Logger log

Constructor Detail

Sysfs

public Sysfs()

Method Detail

writeString

public static boolean writeString(java.lang.String filePath,
                                  java.lang.String value)

Write a value in a file.

Parameters:

filePath - File path

value - value to write

Returns:

A boolean value if the operation was written or not.

writeInteger

public static boolean writeInteger(java.lang.String filePath,
                                   int value)

readString

public static java.lang.String readString(java.lang.String filePath)

Read an Attribute in the Sysfs with containing String values

Parameters:

filePath - path

Returns:

value from attribute

readInteger

public static int readInteger(java.lang.String filePath)

Read an Attribute in the Sysfs with containing Integer values

Parameters:

filePath - path

Returns:

value from attribute

readFloat

public static float readFloat(java.lang.String filePath)

getElements

public static java.util.List<java.io.File> getElements(java.lang.String filePath)

Parameters:

filePath - path

Returns:

an List with options from a path

existPath

public static boolean existPath(java.lang.String filePath)

This method is used to detect folders in /sys/class/

Parameters:

filePath - path

Returns:

boolean

existFile

public static boolean existFile(java.nio.file.Path pathToFind)

writeBytes

public static boolean writeBytes(java.lang.String path,
                                 byte[] value)