QFW Class Reference

#include <quantum_wheel.h>

Inheritance diagram for QFW:

Collaboration diagram for QFW:

Public Member Functions
	QFW ()
virtual	~QFW ()=default
void	debugTriggered (bool enable)
	Inform driver that the debug option was triggered. More...
void	simulationTriggered (bool enable)
	Inform driver that the simulation option was triggered. More...
bool	Handshake ()
	perform handshake with device to check communication More...
const char *	getDefaultName ()
bool	initProperties ()
	Initilize properties initial state and value. More...
void	ISGetProperties (const char *dev)
	define the driver's properties to the client. More...
int	QueryFilter ()
	Return current filter position. More...
bool	SelectFilter (int)
	Select a new filter position. More...
Public Member Functions inherited from INDI::FilterWheel
virtual bool	updateProperties ()
	updateProperties is called whenever there is a change in the CONNECTION status of the driver. More...
virtual bool	ISSnoopDevice (XMLEle *root)
	Process a snoop event from INDI server. More...
virtual bool	ISNewSwitch (const char *dev, const char *name, ISState *states, char *names[], int n)
	Process the client newSwitch command. More...
virtual bool	ISNewNumber (const char *dev, const char *name, double values[], char *names[], int n)
	Process the client newNumber command. More...
virtual bool	ISNewText (const char *dev, const char *name, char *texts[], char *names[], int n)
	Process the client newSwitch command. More...
void	setFilterConnection (const uint8_t &value)
	setFilterConnection Set Filter connection mode. More...
uint8_t	getFilterConnection () const
virtual bool	updateProperties ()
	updateProperties is called whenever there is a change in the CONNECTION status of the driver. More...
virtual bool	ISSnoopDevice (XMLEle *root)
	Process a snoop event from INDI server. More...
virtual bool	ISNewSwitch (const char *dev, const char *name, ISState *states, char *names[], int n)
	Process the client newSwitch command. More...
virtual bool	ISNewNumber (const char *dev, const char *name, double values[], char *names[], int n)
	Process the client newNumber command. More...
virtual bool	ISNewText (const char *dev, const char *name, char *texts[], char *names[], int n)
	Process the client newSwitch command. More...
void	setFilterConnection (const uint8_t &value)
	setFilterConnection Set Filter connection mode. More...
uint8_t	getFilterConnection () const
Public Member Functions inherited from INDI::DefaultDevice
	DefaultDevice ()
virtual	~DefaultDevice ()
void	addAuxControls ()
	Add Debug, Simulation, and Configuration options to the driver. More...
void	addDebugControl ()
	Add Debug control to the driver. More...
void	addSimulationControl ()
	Add Simulation control to the driver. More...
void	addConfigurationControl ()
	Add Configuration control to the driver. More...
void	addPollPeriodControl ()
	Add Polling period control to the driver. More...
void	resetProperties ()
	Set all properties to IDLE state. More...
void	defineNumber (INumberVectorProperty *nvp)
	Define number vector to client & register it. More...
void	defineText (ITextVectorProperty *tvp)
	Define text vector to client & register it. More...
void	defineSwitch (ISwitchVectorProperty *svp)
	Define switch vector to client & register it. More...
void	defineLight (ILightVectorProperty *lvp)
	Define light vector to client & register it. More...
void	defineBLOB (IBLOBVectorProperty *bvp)
	Define BLOB vector to client & register it. More...
virtual bool	deleteProperty (const char *propertyName)
	Delete a property and unregister it. More...
virtual void	setConnected (bool status, IPState state=IPS_OK, const char *msg=nullptr)
	Set connection switch status in the client. More...
int	SetTimer (uint32_t ms)
	Set a timer to call the function TimerHit after ms milliseconds. More...
void	RemoveTimer (int id)
	Remove timer added with SetTimer. More...
virtual void	TimerHit ()
	Callback function to be called once SetTimer duration elapses. More...
virtual const char *	getDriverExec ()
virtual const char *	getDriverName ()
void	setVersion (uint16_t vMajor, uint16_t vMinor)
	Set driver version information to be defined in DRIVER_INFO property as vMajor.vMinor. More...
uint16_t	getMajorVersion ()
uint16_t	getMinorVersion ()
virtual bool	ISNewBLOB (const char *dev, const char *name, int sizes[], int blobsizes[], char *blobs[], char *formats[], char *names[], int n)
	Process the client newBLOB command. More...
virtual uint16_t	getDriverInterface ()
void	setDriverInterface (uint16_t value)
	setInterface Set driver interface. More...
	DefaultDevice ()
virtual	~DefaultDevice ()
void	addAuxControls ()
	Add Debug, Simulation, and Configuration options to the driver. More...
void	addDebugControl ()
	Add Debug control to the driver. More...
void	addSimulationControl ()
	Add Simulation control to the driver. More...
void	addConfigurationControl ()
	Add Configuration control to the driver. More...
void	addPollPeriodControl ()
	Add Polling period control to the driver. More...
void	resetProperties ()
	Set all properties to IDLE state. More...
void	defineNumber (INumberVectorProperty *nvp)
	Define number vector to client & register it. More...
void	defineText (ITextVectorProperty *tvp)
	Define text vector to client & register it. More...
void	defineSwitch (ISwitchVectorProperty *svp)
	Define switch vector to client & register it. More...
void	defineLight (ILightVectorProperty *lvp)
	Define light vector to client & register it. More...
void	defineBLOB (IBLOBVectorProperty *bvp)
	Define BLOB vector to client & register it. More...
virtual bool	deleteProperty (const char *propertyName)
	Delete a property and unregister it. More...
virtual void	setConnected (bool status, IPState state=IPS_OK, const char *msg=nullptr)
	Set connection switch status in the client. More...
int	SetTimer (uint32_t ms)
	Set a timer to call the function TimerHit after ms milliseconds. More...
void	RemoveTimer (int id)
	Remove timer added with SetTimer. More...
virtual void	TimerHit ()
	Callback function to be called once SetTimer duration elapses. More...
virtual const char *	getDriverExec ()
virtual const char *	getDriverName ()
void	setVersion (uint16_t vMajor, uint16_t vMinor)
	Set driver version information to be defined in DRIVER_INFO property as vMajor.vMinor. More...
uint16_t	getMajorVersion ()
uint16_t	getMinorVersion ()
virtual bool	ISNewBLOB (const char *dev, const char *name, int sizes[], int blobsizes[], char *blobs[], char *formats[], char *names[], int n)
	Process the client newBLOB command. More...
virtual uint16_t	getDriverInterface ()
void	setDriverInterface (uint16_t value)
	setInterface Set driver interface. More...
Public Member Functions inherited from INDI::BaseDevice
	BaseDevice ()
virtual	~BaseDevice ()
INumberVectorProperty *	getNumber (const char *name)
ITextVectorProperty *	getText (const char *name)
ISwitchVectorProperty *	getSwitch (const char *name)
ILightVectorProperty *	getLight (const char *name)
IBLOBVectorProperty *	getBLOB (const char *name)
IPState	getPropertyState (const char *name)
IPerm	getPropertyPermission (const char *name)
void	registerProperty (void *p, INDI_PROPERTY_TYPE type)
int	removeProperty (const char *name, char *errmsg)
	Remove a property. More...
void *	getRawProperty (const char *name, INDI_PROPERTY_TYPE type=INDI_UNKNOWN)
	Return a property and its type given its name. More...
INDI::Property *	getProperty (const char *name, INDI_PROPERTY_TYPE type=INDI_UNKNOWN)
	Return a property and its type given its name. More...
std::vector< INDI::Property * > *	getProperties ()
	Return a list of all properties in the device. More...
bool	buildSkeleton (const char *filename)
	Build driver properties from a skeleton file. More...
bool	isConnected ()
void	setDeviceName (const char *dev)
	Set the device name. More...
const char *	getDeviceName ()
void	addMessage (const std::string &msg)
	Add message to the driver's message queue. More...
void	checkMessage (XMLEle *root)
void	doMessage (XMLEle *msg)
std::string	messageQueue (int index) const
std::string	lastMessage ()
void	setMediator (INDI::BaseMediator *med)
	Set the driver's mediator to receive notification of news devices and updated property values. More...
INDI::BaseMediator *	getMediator ()
const char *	getDriverName ()
const char *	getDriverExec ()
const char *	getDriverVersion ()
	BaseDevice ()
virtual	~BaseDevice ()
INumberVectorProperty *	getNumber (const char *name)
ITextVectorProperty *	getText (const char *name)
ISwitchVectorProperty *	getSwitch (const char *name)
ILightVectorProperty *	getLight (const char *name)
IBLOBVectorProperty *	getBLOB (const char *name)
IPState	getPropertyState (const char *name)
IPerm	getPropertyPermission (const char *name)
void	registerProperty (void *p, INDI_PROPERTY_TYPE type)
int	removeProperty (const char *name, char *errmsg)
	Remove a property. More...
void *	getRawProperty (const char *name, INDI_PROPERTY_TYPE type=INDI_UNKNOWN)
	Return a property and its type given its name. More...
INDI::Property *	getProperty (const char *name, INDI_PROPERTY_TYPE type=INDI_UNKNOWN)
	Return a property and its type given its name. More...
std::vector< INDI::Property * > *	getProperties ()
	Return a list of all properties in the device. More...
bool	buildSkeleton (const char *filename)
	Build driver properties from a skeleton file. More...
bool	isConnected ()
void	setDeviceName (const char *dev)
	Set the device name. More...
const char *	getDeviceName ()
void	addMessage (const std::string &msg)
	Add message to the driver's message queue. More...
void	checkMessage (XMLEle *root)
void	doMessage (XMLEle *msg)
std::string	messageQueue (int index) const
std::string	lastMessage ()
void	setMediator (INDI::BaseMediator *med)
	Set the driver's mediator to receive notification of news devices and updated property values. More...
INDI::BaseMediator *	getMediator ()
const char *	getDriverName ()
const char *	getDriverExec ()
const char *	getDriverVersion ()
Public Member Functions inherited from INDI::FilterInterface
virtual bool	SetFilterNames ()
	Set filter names as defined by the client for each filter position. More...
virtual bool	GetFilterNames ()
	Obtains a list of filter names from the hardware and initializes the FilterNameTP property. More...
void	SelectFilterDone (int newpos)
	The child class calls this function when the hardware successfully finished selecting a new filter wheel position. More...
virtual bool	SetFilterNames ()
	Set filter names as defined by the client for each filter position. More...
virtual bool	GetFilterNames ()
	Obtains a list of filter names from the hardware and initializes the FilterNameTP property. More...
void	SelectFilterDone (int newpos)
	The child class calls this function when the hardware successfully finished selecting a new filter wheel position. More...

Additional Inherited Members
Public Types inherited from INDI::FilterWheel
enum	{ CONNECTION_NONE = 1 << 0, CONNECTION_SERIAL = 1 << 1, CONNECTION_TCP = 1 << 2 }
enum	{ CONNECTION_NONE = 1 << 0, CONNECTION_SERIAL = 1 << 1, CONNECTION_TCP = 1 << 2 }
Public Types inherited from INDI::BaseDevice
enum	INDI_ERROR {   INDI_DEVICE_NOT_FOUND = -1, INDI_PROPERTY_INVALID = -2, INDI_PROPERTY_DUPLICATED = -3, INDI_DISPATCH_ERROR = -4,   INDI_DEVICE_NOT_FOUND = -1, INDI_PROPERTY_INVALID = -2, INDI_PROPERTY_DUPLICATED = -3, INDI_DISPATCH_ERROR = -4 }
enum	DRIVER_INTERFACE {   GENERAL_INTERFACE = 0, TELESCOPE_INTERFACE = (1 << 0), CCD_INTERFACE = (1 << 1), GUIDER_INTERFACE = (1 << 2),   FOCUSER_INTERFACE = (1 << 3), FILTER_INTERFACE = (1 << 4), DOME_INTERFACE = (1 << 5), GPS_INTERFACE = (1 << 6),   WEATHER_INTERFACE = (1 << 7), AO_INTERFACE = (1 << 8), DUSTCAP_INTERFACE = (1 << 9), LIGHTBOX_INTERFACE = (1 << 10),   DETECTOR_INTERFACE = (1 << 11), ROTATOR_INTERFACE = (1 << 12), SPECTROGRAPH_INTERFACE = (1 << 13), AUX_INTERFACE = (1 << 15),   GENERAL_INTERFACE = 0, TELESCOPE_INTERFACE = (1 << 0), CCD_INTERFACE = (1 << 1), GUIDER_INTERFACE = (1 << 2),   FOCUSER_INTERFACE = (1 << 3), FILTER_INTERFACE = (1 << 4), DOME_INTERFACE = (1 << 5), GPS_INTERFACE = (1 << 6),   WEATHER_INTERFACE = (1 << 7), AO_INTERFACE = (1 << 8), DUSTCAP_INTERFACE = (1 << 9), LIGHTBOX_INTERFACE = (1 << 10),   DETECTOR_INTERFACE = (1 << 11), ROTATOR_INTERFACE = (1 << 12), SPECTROGRAPH_INTERFACE = (1 << 13), AUX_INTERFACE = (1 << 15) }
	The DRIVER_INTERFACE enum defines the class of devices the driver implements. More...
enum	INDI_ERROR {   INDI_DEVICE_NOT_FOUND = -1, INDI_PROPERTY_INVALID = -2, INDI_PROPERTY_DUPLICATED = -3, INDI_DISPATCH_ERROR = -4,   INDI_DEVICE_NOT_FOUND = -1, INDI_PROPERTY_INVALID = -2, INDI_PROPERTY_DUPLICATED = -3, INDI_DISPATCH_ERROR = -4 }
enum	DRIVER_INTERFACE {   GENERAL_INTERFACE = 0, TELESCOPE_INTERFACE = (1 << 0), CCD_INTERFACE = (1 << 1), GUIDER_INTERFACE = (1 << 2),   FOCUSER_INTERFACE = (1 << 3), FILTER_INTERFACE = (1 << 4), DOME_INTERFACE = (1 << 5), GPS_INTERFACE = (1 << 6),   WEATHER_INTERFACE = (1 << 7), AO_INTERFACE = (1 << 8), DUSTCAP_INTERFACE = (1 << 9), LIGHTBOX_INTERFACE = (1 << 10),   DETECTOR_INTERFACE = (1 << 11), ROTATOR_INTERFACE = (1 << 12), SPECTROGRAPH_INTERFACE = (1 << 13), AUX_INTERFACE = (1 << 15),   GENERAL_INTERFACE = 0, TELESCOPE_INTERFACE = (1 << 0), CCD_INTERFACE = (1 << 1), GUIDER_INTERFACE = (1 << 2),   FOCUSER_INTERFACE = (1 << 3), FILTER_INTERFACE = (1 << 4), DOME_INTERFACE = (1 << 5), GPS_INTERFACE = (1 << 6),   WEATHER_INTERFACE = (1 << 7), AO_INTERFACE = (1 << 8), DUSTCAP_INTERFACE = (1 << 9), LIGHTBOX_INTERFACE = (1 << 10),   DETECTOR_INTERFACE = (1 << 11), ROTATOR_INTERFACE = (1 << 12), SPECTROGRAPH_INTERFACE = (1 << 13), AUX_INTERFACE = (1 << 15) }
	The DRIVER_INTERFACE enum defines the class of devices the driver implements. More...
Static Public Member Functions inherited from INDI::FilterWheel
static void	joystickHelper (const char *joystick_n, double mag, double angle, void *context)
static void	buttonHelper (const char *button_n, ISState state, void *context)
static void	joystickHelper (const char *joystick_n, double mag, double angle, void *context)
static void	buttonHelper (const char *button_n, ISState state, void *context)
Public Attributes inherited from INDI::FilterWheel
enum INDI::FilterWheel:: { ... }	FilterConnection
enum INDI::FilterWheel:: { ... }	FilterConnection
Protected Member Functions inherited from INDI::FilterWheel
	FilterWheel ()
virtual	~FilterWheel ()=default
virtual bool	saveConfigItems (FILE *fp)
	saveConfigItems Save specific properties in the provide config file handler. More...
void	processJoystick (const char *joystick_n, double mag, double angle)
void	processButton (const char *button_n, ISState state)
	FilterWheel ()
virtual	~FilterWheel ()=default
virtual bool	saveConfigItems (FILE *fp)
	saveConfigItems Save specific properties in the provide config file handler. More...
void	processJoystick (const char *joystick_n, double mag, double angle)
void	processButton (const char *button_n, ISState state)
Protected Member Functions inherited from INDI::DefaultDevice
void	setDynamicPropertiesBehavior (bool defineEnabled, bool deleteEnabled)
	setDynamicPropertiesBehavior controls handling of dynamic properties. More...
virtual bool	loadConfig (bool silent=false, const char *property=nullptr)
	Load the last saved configuration file. More...
virtual bool	saveConfig (bool silent=false, const char *property=nullptr)
	Save the current properties in a configuration file. More...
virtual bool	saveAllConfigItems (FILE *fp)
	saveAllConfigItems Save all the drivers' properties in the configuration file More...
virtual bool	loadDefaultConfig ()
	Load the default configuration file. More...
void	setDebug (bool enable)
	Toggle driver debug status A driver can be more verbose if Debug option is enabled by the client. More...
void	setSimulation (bool enable)
	Toggle driver simulation status A driver can run in simulation mode if Simulation option is enabled by the client. More...
bool	isDebug ()
bool	isSimulation ()
virtual bool	Connect ()
	Connect to the device. More...
virtual bool	Disconnect ()
	Disconnect from device. More...
void	registerConnection (Connection::Interface *newConnection)
	registerConnection Add new connection plugin to the existing connection pool. More...
bool	unRegisterConnection (Connection::Interface *existingConnection)
	unRegisterConnection Remove connection from existing pool More...
Connection::Interface *	getActiveConnection ()
void	setDefaultPollingPeriod (uint32_t period)
uint32_t	getPollingPeriod ()
void	setDynamicPropertiesBehavior (bool defineEnabled, bool deleteEnabled)
	setDynamicPropertiesBehavior controls handling of dynamic properties. More...
virtual bool	loadConfig (bool silent=false, const char *property=nullptr)
	Load the last saved configuration file. More...
virtual bool	saveConfig (bool silent=false, const char *property=nullptr)
	Save the current properties in a configuration file. More...
virtual bool	saveAllConfigItems (FILE *fp)
	saveAllConfigItems Save all the drivers' properties in the configuration file More...
virtual bool	loadDefaultConfig ()
	Load the default configuration file. More...
void	setDebug (bool enable)
	Toggle driver debug status A driver can be more verbose if Debug option is enabled by the client. More...
void	setSimulation (bool enable)
	Toggle driver simulation status A driver can run in simulation mode if Simulation option is enabled by the client. More...
bool	isDebug ()
bool	isSimulation ()
virtual bool	Connect ()
	Connect to the device. More...
virtual bool	Disconnect ()
	Disconnect from device. More...
void	registerConnection (Connection::Interface *newConnection)
	registerConnection Add new connection plugin to the existing connection pool. More...
bool	unRegisterConnection (Connection::Interface *existingConnection)
	unRegisterConnection Remove connection from existing pool More...
Connection::Interface *	getActiveConnection ()
void	setDefaultPollingPeriod (uint32_t period)
uint32_t	getPollingPeriod ()
Protected Member Functions inherited from INDI::BaseDevice
int	buildProp (XMLEle *root, char *errmsg)
	Build a property given the supplied XML element (defXXX) More...
int	setValue (XMLEle *root, char *errmsg)
	handle SetXXX commands from client More...
int	setBLOB (IBLOBVectorProperty *pp, XMLEle *root, char *errmsg)
	Parse and store BLOB in the respective vector. More...
int	buildProp (XMLEle *root, char *errmsg)
	Build a property given the supplied XML element (defXXX) More...
int	setValue (XMLEle *root, char *errmsg)
	handle SetXXX commands from client More...
int	setBLOB (IBLOBVectorProperty *pp, XMLEle *root, char *errmsg)
	Parse and store BLOB in the respective vector. More...
Protected Member Functions inherited from INDI::FilterInterface
	FilterInterface (DefaultDevice *defaultDevice)
	FilterInterface Initiailize Filter Interface. More...
	~FilterInterface ()
void	initProperties (const char *groupName)
	Initilize filter wheel properties. More...
bool	updateProperties ()
	updateProperties Defines or Delete proprties based on default device connection status More...
bool	processNumber (const char *dev, const char *name, double values[], char *names[], int n)
	Process number properties. More...
bool	processText (const char *dev, const char *name, char *texts[], char *names[], int n)
	Process text properties. More...
void	generateSampleFilters ()
	generateSampleFilters Generate sample 8-filter wheel and fill it sample filters More...
bool	saveConfigItems (FILE *fp)
	saveConfigItems save Filter Names in config file More...
	FilterInterface (DefaultDevice *defaultDevice)
	FilterInterface Initiailize Filter Interface. More...
	~FilterInterface ()
void	initProperties (const char *groupName)
	Initilize filter wheel properties. More...
bool	updateProperties ()
	updateProperties Defines or Delete proprties based on default device connection status More...
bool	processNumber (const char *dev, const char *name, double values[], char *names[], int n)
	Process number properties. More...
bool	processText (const char *dev, const char *name, char *texts[], char *names[], int n)
	Process text properties. More...
void	generateSampleFilters ()
	generateSampleFilters Generate sample 8-filter wheel and fill it sample filters More...
bool	saveConfigItems (FILE *fp)
	saveConfigItems save Filter Names in config file More...
Protected Attributes inherited from INDI::FilterWheel
Controller *	controller
Connection::Serial *	serialConnection = NULL
Connection::TCP *	tcpConnection = NULL
int	PortFD = -1
	For Serial & TCP connections. More...
Protected Attributes inherited from INDI::DefaultDevice
uint32_t	POLLMS = 1000
	Period in milliseconds to call TimerHit(). Default 1000 ms. More...
Protected Attributes inherited from INDI::FilterInterface
INumberVectorProperty	FilterSlotNP
INumber	FilterSlotN [1]
ITextVectorProperty *	FilterNameTP { nullptr }
IText *	FilterNameT
int	CurrentFilter
int	TargetFilter
bool	loadingFromConfig = false
DefaultDevice *	m_defaultDevice { nullptr }

Constructor & Destructor Documentation

QFW()

QFW::QFW

(

)

~QFW()

virtual QFW::~QFW ( )

virtualdefault

Member Function Documentation

debugTriggered()

void QFW::debugTriggered ( bool  enable )

virtual

Inform driver that the debug option was triggered.

This function is called after setDebug is triggered by the client. Reimplement this function if your driver needs to take specific action after debug is enabled/disabled. Otherwise, you can use isDebug() to check if simulation is enabled or disabled.

Parameters

enable

If true, the debug option is set to ON.

Reimplemented from INDI::DefaultDevice.

getDefaultName()

const char * QFW::getDefaultName ( )

virtual

Returns

Default name of the device.

Implements INDI::DefaultDevice.

Handshake()

bool QFW::Handshake ( )

virtual

perform handshake with device to check communication

Reimplemented from INDI::FilterWheel.

initProperties()

bool QFW::initProperties ( )

virtual

Initilize properties initial state and value.

The child class must implement this function.

Returns

True if initilization is successful, false otherwise.

Reimplemented from INDI::FilterWheel.

ISGetProperties()

void QFW::ISGetProperties ( const char *  dev )

virtual

define the driver's properties to the client.

Usually, only a minimum set of properties are defined to the client in this function if the device is in disconnected state. Those properties should be enough to enable the client to establish a connection to the device. In addition to CONNECT/DISCONNECT, such properties may include port name, IP address, etc. You should check if the device is already connected, and if this is true, then you must define the remainder of the the properties to the client in this function. Otherwise, the remainder of the driver's properties are defined to the client in updateProperties() function which is called when a client connects/disconnects from a device.

Parameters

dev	name of the device

Note

This function is called by the INDI framework, do not call it directly. See LX200 Generic driver for an example implementation

Reimplemented from INDI::FilterWheel.

QueryFilter()

int QFW::QueryFilter ( )

virtual

Return current filter position.

Reimplemented from INDI::FilterWheel.

SelectFilter()

bool QFW::SelectFilter ( int  position )

virtual

Select a new filter position.

Returns

True if operation is successful, false otherwise

Reimplemented from INDI::FilterWheel.

simulationTriggered()

void QFW::simulationTriggered ( bool  enable )

virtual

Inform driver that the simulation option was triggered.

This function is called after setSimulation is triggered by the client. Reimplement this function if your driver needs to take specific action after simulation is enabled/disabled. Otherwise, you can use isSimulation() to check if simulation is enabled or disabled.

Parameters

enable

If true, the simulation option is set to ON.

Reimplemented from INDI::DefaultDevice.

---

The documentation for this class was generated from the following files:

• ln/3rdparty/src/indilib/indi-1.7.4/libindi/drivers/filter_wheel/quantum_wheel.h
• ln/3rdparty/src/indilib/indi-1.7.4/libindi/drivers/filter_wheel/quantum_wheel.cpp