#include <vfile.h>

Inheritance diagram for cdev::VFile:

Collaboration diagram for cdev::VFile:

Public Member Functions
	~VFile ()=default

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...

	CDev (const CDev &)=delete

CDev &	operator= (const CDev &)=delete

	CDev (CDev &&)=delete

CDev &	operator= (CDev &&)=delete

virtual	~CDev ()

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)

Private Member Functions
	VFile (const char *fname, mode_t mode)

	VFile (const VFile &)

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. More...

int	unregister_driver_and_memory ()
	First, unregisters the driver. More...

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

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. More...

Detailed Description

Definition at line 48 of file vfile.h.

Constructor & Destructor Documentation

◆ ~VFile()

cdev::VFile::~VFile ( )

default

◆ VFile() [1/2]

cdev::VFile::VFile	(	const char *	fname,
		mode_t	mode
	)

private

Definition at line 46 of file vfile.cpp.

Referenced by createFile().

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◆ VFile() [2/2]

cdev::VFile::VFile ( const VFile & )

private

Member Function Documentation

◆ createFile()

VFile * cdev::VFile::createFile	(	const char *	fname,
		mode_t	mode
	)

static

Definition at line 51 of file vfile.cpp.

References register_driver(), and VFile().

Referenced by px4_open().

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◆ write()

ssize_t cdev::VFile::write	(	file_t *	filep,
		const char *	buffer,
		size_t	buflen
	)

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.

Returns: The number of bytes written or -errno otherwise.

Reimplemented from cdev::CDev.

Definition at line 59 of file vfile.cpp.

References cdev::CDev::poll_notify().

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

src/lib/cdev/posix/vfile.h
src/lib/cdev/posix/vfile.cpp

Public Member Functions

Static Public Member Functions

Private Member Functions

Additional Inherited Members