ioctl.h File Reference

POSIX device I/O control (<sys/ioctl.h>) More...

#include <zephyr/sys/fdtable.h>

Include dependency graph for ioctl.h:

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Macros
#define	FIONBIO   ZFD_IOCTL_FIONBIO
	Set or clear non-blocking I/O mode on a file descriptor.
#define	FIONREAD   ZFD_IOCTL_FIONREAD
	Return the number of bytes available to read without blocking.

Functions
int	ioctl (int fd, unsigned long request,...)
	Perform a device-specific control operation.

Detailed Description

POSIX device I/O control (<sys/ioctl.h>)

Provides ioctl() for performing device-specific control operations on file descriptors, along with the standard non-blocking and pending-read flags.

Note

sys/ioctl.h is not part of the strict POSIX.1-2017 standard but is a widely-supported extension available on Linux and BSD systems.

Definition in file ioctl.h.