LED Class Reference

Inheritance diagram for LED:

Collaboration diagram for LED:

Public Member Functions
	LED ()
	~LED () override=default
int	init () override
int	ioctl (cdev::file_t *filp, int cmd, unsigned long arg) override
	Perform an ioctl operation on the device. More...
	LED ()
	~LED () override=default
int	init () override
int	devIOCTL (unsigned long cmd, unsigned long arg) override

Protected Member Functions
void	_measure () override

Additional Inherited Members
Private Member Functions inherited from cdev::CDev
	CDev (const char *devname)
	Constructor. More...
	CDev (const CDev &)=delete
CDev &	operator= (const CDev &)=delete
	CDev (CDev &&)=delete
CDev &	operator= (CDev &&)=delete
virtual	~CDev ()
virtual int	open (file_t *filep)
	Handle an open of the device. More...
virtual int	close (file_t *filep)
	Handle a close of the device. More...
virtual ssize_t	read (file_t *filep, char *buffer, size_t buflen)
	Perform a read from the device. More...
virtual ssize_t	write (file_t *filep, const char *buffer, size_t buflen)
	Perform a write to the device. More...
virtual off_t	seek (file_t *filep, off_t offset, int whence)
	Perform a logical seek operation on the device. More...
virtual int	poll (file_t *filep, px4_pollfd_struct_t *fds, bool setup)
	Perform a poll setup/teardown operation. More...
const char *	get_devname () const
	Get the device name. More...
virtual pollevent_t	poll_state (file_t *filep)
	Check the current state of the device for poll events from the perspective of the file. More...
virtual void	poll_notify (pollevent_t events)
	Report new poll events. More...
virtual void	poll_notify_one (px4_pollfd_struct_t *fds, pollevent_t events)
	Internal implementation of poll_notify. More...
virtual int	open_first (file_t *filep)
	Notification of the first open. More...
virtual int	close_last (file_t *filep)
	Notification of the last close. More...
virtual int	register_class_devname (const char *class_devname)
	Register a class device name, automatically adding device class instance suffix if need be. More...
virtual int	unregister_class_devname (const char *class_devname, unsigned class_instance)
	Register a class device name, automatically adding device class instance suffix if need be. More...
void	lock ()
	Take the driver lock. More...
void	unlock ()
	Release the driver lock. More...
int	unregister_driver_and_memory ()
	First, unregisters the driver. More...
Private Attributes inherited from cdev::CDev
px4_sem_t	_lock
	lock to protect access to all class members (also for derived classes) More...
Static Private Attributes inherited from cdev::CDev
static const px4_file_operations_t	fops = {}
	Pointer to the default cdev file operations table; useful for registering clone devices etc. More...

Detailed Description

Definition at line 59 of file led.cpp.

Constructor & Destructor Documentation

LED() [1/2]

LED::LED

(

)

Definition at line 69 of file led.cpp.

References init().

Referenced by _measure(), and drv_led_start().

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~LED() [1/2]

LED::~LED ( )

overridedefault

LED() [2/2]

LED::LED

(

)

~LED() [2/2]

LED::~LED ( )

overridedefault

Member Function Documentation

_measure()

void LED::_measure ( void  )

inlineoverrideprotected

Definition at line 72 of file led.cpp.

References init(), ToneAlarmInterface::init(), LED(), LED_BASE_DEVICE_PATH, and led_init().

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devIOCTL()

int LED::devIOCTL ( unsigned long  cmd, unsigned long  arg  )

override

Definition at line 95 of file led.cpp.

References led_off(), LED_OFF, led_on(), LED_ON, led_toggle(), LED_TOGGLE, and OK.

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init() [1/2]

int LED::init ( )

overridevirtual

Reimplemented from cdev::CDev.

Definition at line 76 of file led.cpp.

References ToneAlarmInterface::init(), and led_init().

Referenced by _measure(), drv_led_start(), and LED().

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init() [2/2]

int LED::init ( )

overridevirtual

Reimplemented from cdev::CDev.

ioctl()

int LED::ioctl ( cdev::file_t *  filep, int  cmd, unsigned long  arg  )

overridevirtual

Perform an ioctl operation on the device.

The default implementation handles DIOC_GETPRIV, and otherwise returns -ENOTTY. Subclasses should call the default implementation for any command they do not handle themselves.

Parameters

filep	Pointer to the NuttX file structure.
cmd	The ioctl command value.
arg	The ioctl argument value.

Returns

OK on success, or -errno otherwise.

Reimplemented from cdev::CDev.

Definition at line 88 of file led.cpp.

References led_off(), LED_OFF, led_on(), LED_ON, led_toggle(), LED_TOGGLE, and OK.

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

• src/lib/drivers/led/led.cpp