Package com.diozero.internal.provider.sysfs

Class SysFsPwmOutputDevice

java.lang.Object

com.diozero.internal.provider.AbstractDevice

com.diozero.internal.provider.sysfs.SysFsPwmOutputDevice

All Implemented Interfaces:

DeviceInterface, GpioDeviceInterface, PwmOutputDeviceInterface, java.io.Closeable, java.lang.AutoCloseable

public class SysFsPwmOutputDevice
extends AbstractDevice
implements PwmOutputDeviceInterface

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SysFsPwmOutputDevice.Polarity

Constructor Summary

Constructors

Constructor	Description
SysFsPwmOutputDevice(java.lang.String key, DeviceFactoryInterface deviceFactory, int pwmChip, PwmPinInfo pinInfo, int frequency, float initialValue)

Method Summary

Modifier and Type	Method	Description
protected void	closeDevice()
int	getGpio()
int	getPwmNum()	Get the device PWM output device number
float	getValue()	Get the current PWM output value (0..1)
protected void	setPolarity(SysFsPwmOutputDevice.Polarity polarity)
void	setValue(float value)	Set the PWM output value (0..1)

Methods inherited from class com.diozero.internal.provider.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.internal.provider.DeviceInterface

close, getKey, isOpen

Methods inherited from interface com.diozero.internal.provider.PwmOutputDeviceInterface

getMode

Constructor Details

SysFsPwmOutputDevice

public SysFsPwmOutputDevice(java.lang.String key, DeviceFactoryInterface deviceFactory, int pwmChip, PwmPinInfo pinInfo, int frequency, float initialValue)

Method Details

closeDevice

protected void closeDevice()

Specified by:

closeDevice in class AbstractDevice

getGpio

public int getGpio()

Specified by:

getGpio in interface GpioDeviceInterface

getPwmNum

public int getPwmNum()

Description copied from interface: PwmOutputDeviceInterface

Get the device PWM output device number

Specified by:

getPwmNum in interface PwmOutputDeviceInterface

Returns:

Device native PWM output

getValue

public float getValue() throws RuntimeIOException

Description copied from interface: PwmOutputDeviceInterface

Get the current PWM output value (0..1)

Specified by:

getValue in interface PwmOutputDeviceInterface

Returns:

Range is 0..1

Throws:

RuntimeIOException - if an I/O error occurs

setValue

public void setValue(float value) throws RuntimeIOException

Description copied from interface: PwmOutputDeviceInterface

Set the PWM output value (0..1)

Specified by:

setValue in interface PwmOutputDeviceInterface

Parameters:

value - Relative value in the range 0..1

Throws:

RuntimeIOException - if an I/O error occurs

setPolarity

protected void setPolarity(SysFsPwmOutputDevice.Polarity polarity)