ev3dev.hardware

Class EV3DevDevice

java.lang.Object

ev3dev.hardware.Device

ev3dev.hardware.EV3DevSysfs

ev3dev.hardware.EV3DevDevice

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

Direct Known Subclasses:

BaseRegulatedMotor, BaseSensor, BasicMotor

public class EV3DevDevice
extends EV3DevSysfs

Base class to interact with EV3Dev sysfs

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	ADDRESS
private boolean	connected
private java.lang.String	DEVICE_ROOT_PATH
protected java.io.File	PATH_DEVICE

Fields inherited from class ev3dev.hardware.Device

closeList

Constructor Summary

Constructors

Constructor and Description
EV3DevDevice(java.lang.String type, java.lang.String portName) Every device connected in a EV3 Brick with EV3Dev appears in /sys/class in a determinated category.

Method Summary

Modifier and Type	Method and Description
void	connect(java.lang.String type, java.lang.String portName) This method matches a input with the internal position in EV3Dev.
int	getIntegerAttribute(java.lang.String attribute) Returns the value of an attribute supported for a Device
java.lang.String	getStringAttribute(java.lang.String attribute) Returns the value of an attribute supported for a Device
void	setIntegerAttribute(java.lang.String attribute, int value) Set a value on an attribute
void	setStringAttribute(java.lang.String attribute, java.lang.String value) Set a value on an attribute

Methods inherited from class ev3dev.hardware.EV3DevSysfs

getElements, readFloat, readInteger, readString, writeInteger, writeString

Methods inherited from class ev3dev.hardware.Device

close, releaseOnClose

Methods inherited from class java.lang.Object

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

Field Detail

DEVICE_ROOT_PATH

private final java.lang.String DEVICE_ROOT_PATH

See Also:

Constant Field Values

ADDRESS

private final java.lang.String ADDRESS

See Also:

Constant Field Values

PATH_DEVICE

protected java.io.File PATH_DEVICE

connected

private boolean connected

Constructor Detail

EV3DevDevice

public EV3DevDevice(java.lang.String type,
                    java.lang.String portName)
             throws DeviceException

Every device connected in a EV3 Brick with EV3Dev appears in /sys/class in a determinated category. It is necessary to indicate the type and port.

Parameters:

type - A valid type. Example: tacho-motor, lego-sensor, etc...

portName - The port where is connected the sensor or the actuator.

Throws:

DeviceException

Method Detail

connect

public void connect(java.lang.String type,
                    java.lang.String portName)

This method matches a input with the internal position in EV3Dev.

Parameters:

type -

portName -

getStringAttribute

public java.lang.String getStringAttribute(java.lang.String attribute)

Returns the value of an attribute supported for a Device

Parameters:

attribute -

Returns:

getIntegerAttribute

public int getIntegerAttribute(java.lang.String attribute)

Returns the value of an attribute supported for a Device

Parameters:

attribute -

Returns:

setStringAttribute

public void setStringAttribute(java.lang.String attribute,
                               java.lang.String value)

Set a value on an attribute

Parameters:

attribute -

value -

setIntegerAttribute

public void setIntegerAttribute(java.lang.String attribute,
                                int value)

Set a value on an attribute

Parameters:

attribute -

value -