ioctl_fs(2)

filesystem operations

distropkg manpages-dev@6.9.1-1dataset 2026-04-01T06:19:02Z+debian+ec4110e+mandoc:1.14.6-4

Synopsis

#include <linux/fs.h>
  /* Definition of op constants */
#include <sys/ioctl.h>
int ioctl(int 
fd
, unsigned long 
op
, ...);

—

NAME

ioctl_fs - filesystem operations

Standard C library (libc, -lc)

bash

#include <linux/fs.h>\n  /* Definition of op constants */
\n#include <sys/ioctl.h>

bash

int ioctl(int \nfd\n, unsigned long \nop\n, ...);

The following op values are available.

On success, a nonnegative value is returned. On error, -1 is returned, and errno is set to indicate the error.

Linux.