Inheritance diagram for cdev::VFile:

Public Member Functions
ssize_t	write (file_t handlep, const char buffer, size_t buflen) override
	Perform a write to the device. More...

Public Member Functions inherited from cdev::CDev
	CDev (const char *devname)
	Constructor. More...

virtual int	init ()

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 off_t	seek (file_t *filep, off_t offset, int whence)
	Perform a logical seek operation on the device. More...

virtual int	ioctl (file_t *filep, int cmd, unsigned long arg)
	Perform an ioctl 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...

Static Public Member Functions
static VFile *	createFile (const char *fname, mode_t mode)

Additional Inherited Members
Protected Member Functions inherited from cdev::CDev
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.

Protected Attributes inherited from cdev::CDev
px4_sem_t	_lock
	lock to protect access to all class members (also for derived classes)

Static Protected 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.

Member Function Documentation

§ write()

overridevirtual

Perform a write to the device.

The default implementation returns -ENOSYS.

Parameters

filep	Pointer to the NuttX file structure.
buffer	Pointer to the buffer from which data should be read.
buflen	The number of bytes to be written.

Reimplemented from cdev::CDev.

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