ioctl_console(2)              System Calls Manual             ioctl_console(2)

NAME
       ioctl_console - ioctls for console terminal and virtual consoles

SYNOPSIS
       #include <sys/ioctl.h>

       int ioctl(int fd, unsigned long op, ...);

DESCRIPTION
       The following Linux-specific ioctl(2) operations are supported for
       console terminals and virtual consoles.

       KDGETLED(2const)
       KDSETLED(2const)
       KDGKBLED(2const)
       KDSKBLED(2const)
       KDGKBTYPE(2const)
       KDADDIO(2const)
       KDDELIO(2const)
       KDENABIO(2const)
       KDDISABIO(2const)
       KDSETMODE(2const)
       KDGETMODE(2const)
       KDMKTONE(2const)
       KIOCSOUND(2const)
       GIO_CMAP(2const)
       PIO_CMAP(2const)
       GIO_FONT(2const)
       GIO_FONTX(2const)
       PIO_FONT(2const)
       PIO_FONTX(2const)
       PIO_FONTRESET(2const)
       GIO_SCRNMAP(2const)
       GIO_UNISCRNMAP(2const)
       PIO_SCRNMAP(2const)
       PIO_UNISCRNMAP(2const)
       GIO_UNIMAP(2const)
       PIO_UNIMAP(2const)
       PIO_UNIMAPCLR(2const)
       KDGKBMODE(2const)
       KDSKBMODE(2const)
       KDGKBMETA(2const)
       KDSKBMETA(2const)
       KDGKBENT(2const)
       KDSKBENT(2const)
       KDGKBSENT(2const)
       KDSKBSENT(2const)
       KDGKBDIACR(2const)
       KDGETKEYCODE(2const)
       KDSETKEYCODE(2const)
       KDSIGACCEPT(2const)
              See ioctl_kd(2).

       TIOCLINUX(2const)

       VT_OPENQRY(2const)
       VT_GETMODE(2const)
       VT_SETMODE(2const)
       VT_GETSTATE(2const)
       VT_RELDISP(2const)
       VT_ACTIVATE(2const)
       VT_WAITACTIVE(2const)
       VT_DISALLOCATE(2const)
       VT_RESIZE(2const)
       VT_RESIZEX(2const)
              See ioctl_vt(2).

RETURN VALUE
       On success, 0 is returned (except where indicated).  On failure, -1 is
       returned, and errno is set to indicate the error.

STANDARDS
       Linux.

CAVEATS
       Do not regard this man page as documentation of the Linux console
       ioctls.  This is provided for the curious only, as an alternative to
       reading the source.  Ioctl's are undocumented Linux internals, liable
       to be changed without warning.  (And indeed, this page more or less
       describes the situation as of kernel version 1.1.94; there are many
       minor and not-so-minor differences with earlier versions.)

       Very often, ioctls are introduced for communication between the kernel
       and one particular well-known program (fdisk, hdparm, setserial,
       tunelp, loadkeys, selection, setfont, etc.), and their behavior will be
       changed when required by this particular program.

SEE ALSO
       ioctl(2), TIOCLINUX(2const), ioctl_kd(2), ioctl_vt(2), dumpkeys(1),
       kbd_mode(1), loadkeys(1), mknod(1), setleds(1), setmetamode(1),
       execve(2), fcntl(2), ioctl_tty(2), ioperm(2), termios(3),
       console_codes(4), mt(4), sd(4), tty(4), ttyS(4), vcs(4), vcsa(4),
       charsets(7), mapscrn(8), resizecons(8), setfont(8)

Linux man-pages 6.9.1             2024-06-14                  ioctl_console(2)