io.h File Reference

#include <sys/types.h>

Include dependency graph for io.h:

Go to the source code of this file.

Defines
#define	IOCTL_GETSTATUS   0x0001
#define	IOCTL_SETSTATUS   0x0002
#define	IOCTL_SETBUFFERMODE   0x0003
#define	IOCTL_GETBUFFERMODE   0x0004
#define	IOCTL_GETOUTBUFSIZE   0x0005
#define	IOCTL_SETOUTBUFSIZE   0x0006
#define	IOCTL_GETINBUFSIZE   0x0007
#define	IOCTL_SETINBUFSIZE   0x0008
#define	IOCTL_FLUSHOUTBUF   0x0009
	Flush the output buffer.
#define	IOCTL_GETFILESIZE   0x000A
	Return the number of bytes currently available in the input buffer.
#define	IOCTL_GETOUTBUFCOUNT   0x000B
	Return the number of bytes currently available in the input buffer.
#define	IOCTL_GETINBUFCOUNT   0x000C
	Return the number of bytes currently available in the output buffer.
Functions
int	_close (int fd)
	Close a file, device or socket.
int	_open (CONST char *name, int mode)
	Open a file.
int	_read (int fd, void *buffer, size_t count)
int	_write (int fd, CONST void *buffer, size_t count)
int	_write_P (int fd, PGM_P buffer, size_t count)
int	_seek (int fd, long offset, int origin)
	Move read/write position of a file.
long	_tell (int fd)
	Return the read/write position of a stream.
int	_ioctl (int fd, int cmd, void *buffer)
	Perform device specific control functions.
long	_filelength (int fd)
	Return the length of a file.

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Function Documentation

int _read	(	int	fd,
		void *	buffer,
		size_t	count
	)

Examples:

uart/uart.c.

Referenced by fgetc(), fpurge(), fread(), main(), NutChatExpectString(), NutFtpTransferFile(), NutHttpProcessAsp(), PerCiDump(), PerCiOpen(), PerCiRead(), vfscanf(), and vfscanf_P().

int _write	(	int	fd,
		CONST void *	buffer,
		size_t	count
	)

Examples:

uart/uart.c.

Referenced by fflush(), fputc(), fputs(), fwrite(), main(), NutFtpTransferFile(), PerCiFlush(), PerCiInit(), PerCiWrite(), syslog_flush(), vfprintf(), and vfprintf_P().

int _write_P	(	int	fd,
		PGM_P	buffer,
		size_t	count
	)

Examples:

uart/uart.c.

Referenced by fputs_P(), fwrite_P(), and main().