man-pages/man2/ioctl_list.2

.\" Ioctl List 1.3.27 is copyright 1995 by Michael Elizabeth Chastain.
.\" Michael Elizabeth Chastain
.\" <mec@duracef.shout.net>
.\"
.\" %%%LICENSE_START(GPLv2_MISC)
.\" It is licensed under the GNU General Public License, Version 2.
.\" %%%LICENSE_END
.\"
.\" Ioctl List 1.3.27
.\" Sun 17 Sep 1995
.\"
.\" // Copyright
.\"
.\"
.\"
.\" // Change Log
.\"
.\" 1.3.27	421 ioctls.
.\" 	Type information for non-pointer args.
.\" 	SIOCDEVPRIVATE, SIOCPROTOPRIVATE ioctls.
.\" 	Descriptions of extended arguments.
.\"
.\" 1.2.9	365 ioctls.
.\" 	First public version.
.\"
.\"
.\" 2007-12-29 Alain Portal <aportal@univ-montp2.fr> and Michael Kerrisk
.\"     <mtk.manpages@gmail.com>:
.\"          Various formatting improvements
.\"
.TH IOCTL_LIST 2 2019-11-19 "Linux" "Linux Programmer's Manual"
.SH NAME
ioctl_list \- list of ioctl calls in Linux/i386 kernel
.SH DESCRIPTION
This is Ioctl List 1.3.27, a list of ioctl calls in Linux/i386 kernel
1.3.27.
It contains 421 ioctls from
.IR </usr/include/{asm,linux}/*.h> .
For each ioctl, its numerical value, its name, and its argument
type are given.
.PP
An argument type of
.I "const struct foo\ *"
means the argument is input to the kernel.
.I "struct foo\ *"
means the kernel outputs the argument.
If the kernel uses the argument for both input and output, this is
marked with \fI//\ I-O\fP.
.PP
Some ioctls take more arguments or return more values than a single
structure.
These are marked \fI//\ MORE\fP and documented further in a
separate section.
In addition, information about some ioctls can be found in
the pages listed under SEE ALSO in
.BR ioctl (2).
.PP
This list is very incomplete.
.SS ioctl structure
.\" added two sections - aeb
Ioctl command values are 32-bit constants.
In principle these constants are completely arbitrary, but people have
tried to build some structure into them.
.PP
The old Linux situation was that of mostly 16-bit constants, where the
last byte is a serial number, and the preceding byte(s) give a type
indicating the driver.
Sometimes the major number was used: 0x03
for the
.B HDIO_*
ioctls, 0x06 for the
.B LP*
ioctls.
And sometimes
one or more ASCII letters were used.
For example,
.B TCGETS
has value
0x00005401, with 0x54 = \(aqT\(aq indicating the terminal driver, and
.B CYGETTIMEOUT
has value 0x00435906, with 0x43 0x59 = \(aqC\(aq \(aqY\(aq
indicating the cyclades driver.
.PP
Later (0.98p5) some more information was built into the number.
One has 2 direction bits
(00: none, 01: write, 10: read, 11: read/write)
followed by 14 size bits (giving the size of the argument),
followed by an 8-bit type (collecting the ioctls in groups
for a common purpose or a common driver), and an 8-bit
serial number.
.PP
The macros describing this structure live in
.I <asm/ioctl.h>
and are
.B _IO(type,nr)
and
.BR "{_IOR,_IOW,_IOWR}(type,nr,size)" .
They use
.I sizeof(size)
so that size is a
misnomer here: this third argument is a data type.
.PP
Note that the size bits are very unreliable: in lots of cases
they are wrong, either because of buggy macros using
.IR sizeof(sizeof(struct)) ,
or because of legacy values.
.PP
Thus, it seems that the new structure only gave disadvantages:
it does not help in checking, but it causes varying values
for the various architectures.
.SH RETURN VALUE
Decent ioctls return 0 on success and \-1 on error, while
any output value is stored via the argument.
However,
quite a few ioctls in fact return an output value.
This is not yet indicated below.
.PP
// Main table.
.PP
// <include/asm-i386/socket.h>
.TS
l l.
FIOSETOWN	const int *
SIOCSPGRP	const int *
FIOGETOWN	int *
SIOCGPGRP	int *
SIOCATMAR	int *
SIOCGSTAMP	timeval *
.TE
.sp 1
// <include/asm-i386/termios.h>
.TS
l l.
TCGETS	struct termios *
TCSETS	const struct termios *
TCSETSW	const struct termios *
TCSETSF	const struct termios *
TCGETA	struct termio *
TCSETA	const struct termio *
TCSETAW	const struct termio *
TCSETAF	const struct termio *
TCSBRK	int
TCXONC	int
TCFLSH	int
TIOCEXCL	void
TIOCNXCL	void
TIOCSCTTY	int
TIOCGPGRP	pid_t *
TIOCSPGRP	const pid_t *
TIOCOUTQ	int *
TIOCSTI	const char *
TIOCGWINSZ	struct winsize *
TIOCSWINSZ	const struct winsize *
TIOCMGET	int *
TIOCMBIS	const int *
TIOCMBIC	const int *
TIOCMSET	const int *
TIOCGSOFTCAR	int *
TIOCSSOFTCAR	const int *
FIONREAD	int *
TIOCINQ	int *
TIOCLINUX	const char *	// MORE
TIOCCONS	void
TIOCGSERIAL	struct serial_struct *
TIOCSSERIAL	const struct serial_struct *
TIOCPKT	const int *
FIONBIO	const int *
TIOCNOTTY	void
TIOCSETD	const int *
TIOCGETD	int *
TCSBRKP	int
TIOCTTYGSTRUCT	struct tty_struct *
FIONCLEX	void
FIOCLEX	void
FIOASYNC	const int *
TIOCSERCONFIG	void
TIOCSERGWILD	int *
TIOCSERSWILD	const int *
TIOCGLCKTRMIOS	struct termios *
TIOCSLCKTRMIOS	const struct termios *
TIOCSERGSTRUCT	struct async_struct *
TIOCSERGETLSR	int *
.TE
.\" Some tables are split into two or more to avoid the warning:
.\" "table wider than line width".  Some lines are to long to fit
.\" on one line on an 80 columns console
.TS
l l.
TIOCSERGETMULTI	struct serial_multiport_struct *
TIOCSERSETMULTI	const struct serial_multiport_struct *
.TE
.sp 1
// <include/linux/ax25.h>
.TS
l l.
SIOCAX25GETUID	const struct sockaddr_ax25 *
SIOCAX25ADDUID	const struct sockaddr_ax25 *
SIOCAX25DELUID	const struct sockaddr_ax25 *
SIOCAX25NOUID	const int *
SIOCAX25DIGCTL	const int *
SIOCAX25GETPARMS	struct ax25_parms_struct *	// I-O
.TE
.TS
l l.
SIOCAX25SETPARMS	const struct ax25_parms_struct *
.TE
.sp 1
// <include/linux/cdk.h>
.TS
l l.
STL_BINTR	void
STL_BSTART	void
STL_BSTOP	void
STL_BRESET	void
.TE
.sp 1
// <include/linux/cdrom.h>
.TS
l l.
CDROMPAUSE	void
CDROMRESUME	void
CDROMPLAYMSF	const struct cdrom_msf *
CDROMPLAYTRKIND	const struct cdrom_ti *
CDROMREADTOCHDR	struct cdrom_tochdr *
.TE
.TS
l l l.
CDROMREADTOCENTRY	struct cdrom_tocentry *	// I-O
.TE
.TS
l l l.
CDROMSTOP	void
CDROMSTART	void
CDROMEJECT	void
CDROMVOLCTRL	const struct cdrom_volctrl *
CDROMSUBCHNL	struct cdrom_subchnl *	// I-O
CDROMREADMODE2	const struct cdrom_msf *	// MORE
CDROMREADMODE1	const struct cdrom_msf *	// MORE
CDROMREADAUDIO	const struct cdrom_read_audio *	// MORE
CDROMEJECT_SW	int
.TE
.TS
l l l.
CDROMMULTISESSION	struct cdrom_multisession *	// I-O
.TE
.TS
l l l.
CDROM_GET_UPC	struct { char [8]; } *
CDROMRESET	void
CDROMVOLREAD	struct cdrom_volctrl *
CDROMREADRAW	const struct cdrom_msf *	// MORE
CDROMREADCOOKED	const struct cdrom_msf *	// MORE
CDROMSEEK	const struct cdrom_msf *
.TE
.sp 1
// <include/linux/cm206.h>
.TS
l l.
CM206CTL_GET_STAT	int
CM206CTL_GET_LAST_STAT	int
.TE
.sp 1
// <include/linux/cyclades.h>
.TS
l l.
CYGETMON	struct cyclades_monitor *
CYGETTHRESH	int *
CYSETTHRESH	int
CYGETDEFTHRESH	int *
CYSETDEFTHRESH	int
CYGETTIMEOUT	int *
CYSETTIMEOUT	int
CYGETDEFTIMEOUT	int *
CYSETDEFTIMEOUT	int
.TE
.sp 1
// <include/linux/fd.h>
.TS
l l.
FDCLRPRM	void
FDSETPRM	const struct floppy_struct *
FDDEFPRM	const struct floppy_struct *
FDGETPRM	struct floppy_struct *
FDMSGON	void
FDMSGOFF	void
FDFMTBEG	void
FDFMTTRK	const struct format_descr *
FDFMTEND	void
FDSETEMSGTRESH	int
FDFLUSH	void
FDSETMAXERRS	const struct floppy_max_errors *
FDGETMAXERRS	struct floppy_max_errors *
FDGETDRVTYP	struct { char [16]; } *
FDSETDRVPRM	const struct floppy_drive_params *
FDGETDRVPRM	struct floppy_drive_params *
FDGETDRVSTAT	struct floppy_drive_struct *
FDPOLLDRVSTAT	struct floppy_drive_struct *
FDRESET	int
FDGETFDCSTAT	struct floppy_fdc_state *
FDWERRORCLR	void
FDWERRORGET	struct floppy_write_errors *
.TE
.TS
l l l.
FDRAWCMD	struct floppy_raw_cmd *	// MORE // I-O
FDTWADDLE	void
.TE
.sp 1
// <include/linux/fs.h>
.TS
l l l.
BLKROSET	const int *
BLKROGET	int *
BLKRRPART	void
BLKGETSIZE	unsigned long *
BLKFLSBUF	void
BLKRASET	unsigned long
BLKRAGET	unsigned long *
FIBMAP	int *	// I-O
FIGETBSZ	int *
FS_IOC_GETFLAGS	int *
FS_IOC_SETFLAGS	int *
FS_IOC_GETVERSION	int *
FS_IOC_SETVERSION	int *
FS_IOC_FIEMAP	struct fiemap *
FS_IOC32_SETFLAGS	int *
FS_IOC32_SETFLAGS	int *
FS_IOC32_GETVERSION	int *
FS_IOC32_SETVERSION	int *
.TE
.sp 1
// <include/linux/hdreg.h>
.TS
l l.
HDIO_GETGEO	struct hd_geometry *
HDIO_GET_UNMASKINTR	int *
HDIO_GET_MULTCOUNT	int *
HDIO_GET_IDENTITY	struct hd_driveid *
HDIO_GET_KEEPSETTINGS	int *
HDIO_GET_CHIPSET	int *
HDIO_GET_NOWERR	int *
HDIO_GET_DMA	int *
HDIO_DRIVE_CMD	int *	// I-O
HDIO_SET_MULTCOUNT	int
HDIO_SET_UNMASKINTR	int
HDIO_SET_KEEPSETTINGS	int
HDIO_SET_CHIPSET	int
HDIO_SET_NOWERR	int
HDIO_SET_DMA	int
.TE
.sp 1
// <include/linux/if_eql.h>
.TS
l l l.
EQL_ENSLAVE	struct ifreq *	// MORE // I-O
EQL_EMANCIPATE	struct ifreq *	// MORE // I-O
EQL_GETSLAVECFG	struct ifreq *	// MORE // I-O
EQL_SETSLAVECFG	struct ifreq *	// MORE // I-O
EQL_GETMASTRCFG	struct ifreq *	// MORE // I-O
EQL_SETMASTRCFG	struct ifreq *	// MORE // I-O
.TE
.sp 1
// <include/linux/if_plip.h>
.TS
l l l.
SIOCDEVPLIP	struct ifreq *	// I-O
.TE
.sp 1
// <include/linux/if_ppp.h>
.TS
l l.
PPPIOCGFLAGS	int *
PPPIOCSFLAGS	const int *
PPPIOCGASYNCMAP	int *
PPPIOCSASYNCMAP	const int *
PPPIOCGUNIT	int *
PPPIOCSINPSIG	const int *
PPPIOCSDEBUG	const int *
PPPIOCGDEBUG	int *
PPPIOCGSTAT	struct ppp_stats *
PPPIOCGTIME	struct ppp_ddinfo *
PPPIOCGXASYNCMAP	struct { int [8]; } *
PPPIOCSXASYNCMAP	const struct { int [8]; } *
PPPIOCSMRU	const int *
PPPIOCRASYNCMAP	const int *
PPPIOCSMAXCID	const int *
.TE
.sp 1
// <include/linux/ipx.h>
.TS
l l.
SIOCAIPXITFCRT	const char *
SIOCAIPXPRISLT	const char *
SIOCIPXCFGDATA	struct ipx_config_data *
.TE
.sp 1
// <include/linux/kd.h>
.TS
l l.
GIO_FONT	struct { char [8192]; } *
PIO_FONT	const struct { char [8192]; } *
.TE
.TS
l2 l2 l.
GIO_FONTX	struct console_font_desc *	// MORE // I-O
PIO_FONTX	const struct console_font_desc *	//MORE
.TE
.TS
l l l.
GIO_CMAP	struct { char [48]; } *
PIO_CMAP	const struct { char [48]; }
.TE
.TS
l l l.
KIOCSOUND	int
KDMKTONE	int
KDGETLED	char *
KDSETLED	int
KDGKBTYPE	char *
KDADDIO	int	// MORE
KDDELIO	int	// MORE
KDENABIO	void	// MORE
KDDISABIO	void	// MORE
KDSETMODE	int
KDGETMODE	int *
KDMAPDISP	void	// MORE
KDUNMAPDISP	void	// MORE
GIO_SCRNMAP	struct { char [E_TABSZ]; } *
.TE
.TS
l l.
PIO_SCRNMAP	const struct { char [E_TABSZ]; } *
GIO_UNISCRNMAP	struct { short [E_TABSZ]; } *
PIO_UNISCRNMAP	const struct { short [E_TABSZ]; } *
.TE
.TS
l l l.
GIO_UNIMAP	struct unimapdesc *	// MORE // I-O
PIO_UNIMAP	const struct unimapdesc *	// MORE
PIO_UNIMAPCLR	const struct unimapinit *
KDGKBMODE	int *
KDSKBMODE	int
KDGKBMETA	int *
KDSKBMETA	int
KDGKBLED	int *
KDSKBLED	int
KDGKBENT	struct kbentry *	// I-O
KDSKBENT	const struct kbentry *
KDGKBSENT	struct kbsentry *	// I-O
KDSKBSENT	const struct kbsentry *
KDGKBDIACR	struct kbdiacrs *
KDSKBDIACR	const struct kbdiacrs *
KDGETKEYCODE	struct kbkeycode *	// I-O
KDSETKEYCODE	const struct kbkeycode *
KDSIGACCEPT	int
.TE
.sp 1
// <include/linux/lp.h>
.TS
l l.
LPCHAR	int
LPTIME	int
LPABORT	int
LPSETIRQ	int
LPGETIRQ	int *
LPWAIT	int
LPCAREFUL	int
LPABORTOPEN	int
LPGETSTATUS	int *
LPRESET	void
LPGETSTATS	struct lp_stats *
.TE
.sp 1
// <include/linux/mroute.h>
.TS
l l l.
SIOCGETVIFCNT	struct sioc_vif_req *	// I-O
SIOCGETSGCNT	struct sioc_sg_req *	// I-O
.TE
.sp 1
// <include/linux/msdos_fs.h> see
.BR ioctl_fat (2)
.TS
l l.
VFAT_IOCTL_READDIR_BOTH	struct dirent [2]
VFAT_IOCTL_READDIR_SHORT	struct dirent [2]
FAT_IOCTL_GET_ATTRIBUTES	__u32 *
FAT_IOCTL_SET_ATTRIBUTES	const __u32 *
FAT_IOCTL_GET_VOLUME_ID	__u32 *
.TE
.sp 1
// <include/linux/mtio.h>
.TS
l l.
MTIOCTOP	const struct mtop *
MTIOCGET	struct mtget *
MTIOCPOS	struct mtpos *
MTIOCGETCONFIG	struct mtconfiginfo *
MTIOCSETCONFIG	const struct mtconfiginfo *
.TE
.sp 1
// <include/linux/netrom.h>
.TS
l l l.
SIOCNRGETPARMS	struct nr_parms_struct *	// I-O
SIOCNRSETPARMS	const struct nr_parms_struct *
SIOCNRDECOBS	void
SIOCNRRTCTL	const int *
.TE
.sp 1
// <include/uapi/linux/wireless.h>
.br
// This API is deprecated.
.br
// It is being replaced by nl80211 and cfg80211.
See
.br
//
.I https://wireless.wiki.kernel.org/en/developers/documentation/nl80211
.TS
l l l.
x00008b00	SIOCSIWCOMMIT	struct iwreq *
x00008b01	SIOCGIWNAME	struct iwreq *
x00008b02	SIOCSIWNWID	struct iwreq *
x00008b03	SIOCGIWNWID	struct iwreq *
x00008b04	SIOCSIWFREQ	struct iwreq *
x00008b05	SIOCGIWFREQ	struct iwreq *
x00008b06	SIOCSIWMODE	struct iwreq *
x00008b07	SIOCGIWMODE	struct iwreq *
x00008b08	SIOCSIWSENS	struct iwreq *
x00008b09	SIOCGIWSENS	struct iwreq *
x00008b0a	SIOCSIWRANGE	struct iwreq *
x00008b0b	SIOCGIWRANGE	struct iwreq *
x00008b0c	SIOCSIWPRIV	struct iwreq *
x00008b0d	SIOCGIWPRIV	struct iwreq *
x00008b0e	SIOCSIWSTATS	struct iwreq *
x00008b0f	SIOCGIWSTATS	struct iwreq *
x00008b10	SIOCSIWSPY	struct iwreq *
x00008b11	SIOCGIWSPY	struct iwreq *
x00008b12	SIOCSIWTHRSPY	struct iwreq *
x00008b13	SIOCGIWTHRSPY	struct iwreq *
x00008b14	SIOCSIWAP	struct iwreq *
x00008b15	SIOCGIWAP	struct iwreq *
x00008b17	SIOCGIWAPLIST	struct iwreq *
x00008b18	SIOCSIWSCAN	struct iwreq *
x00008b19	SIOCGIWSCAN	struct iwreq *
x00008b1a	SIOCSIWESSID	struct iwreq *
x00008b1b	SIOCGIWESSID	struct iwreq *
x00008b1c	SIOCSIWNICKN	struct iwreq *
x00008b1d	SIOCGIWNICKN	struct iwreq *
x00008b20	SIOCSIWRATE	struct iwreq *
x00008b21	SIOCGIWRATE	struct iwreq *
x00008b22	SIOCSIWRTS	struct iwreq *
x00008b23	SIOCGIWRTS	struct iwreq *
x00008b24	SIOCSIWFRAG	struct iwreq *
x00008b25	SIOCGIWFRAG	struct iwreq *
x00008b26	SIOCSIWTXPOW	struct iwreq *
x00008b27	SIOCGIWTXPOW	struct iwreq *
x00008b28	SIOCSIWRETRY	struct iwreq *
x00008b29	SIOCGIWRETRY	struct iwreq *
x00008b2a	SIOCSIWENCODE	struct iwreq *
x00008b2b	SIOCGIWENCODE	struct iwreq *
x00008b2c	SIOCSIWPOWER	struct iwreq *
x00008b2d	SIOCGIWPOWER	struct iwreq *
x00008b30	SIOCSIWGENIE	struct iwreq *
x00008b31	SIOCGIWGENIE	struct iwreq *
x00008b16	SIOCSIWMLME	struct iwreq *
x00008b32	SIOCSIWAUTH	struct iwreq *
x00008b33	SIOCGIWAUTH	struct iwreq *
x00008b34	SIOCSIWENCODEEXT	struct iwreq *
x00008b35	SIOCGIWENCODEEXT	struct iwreq *
x00008b36	SIOCSIWPMKSA	struct iwreq *
.TE
.sp 1
// <include/linux/sbpcd.h>
.TS
l l.
DDIOCSDBG	const int *
CDROMAUDIOBUFSIZ	int
.TE
.sp 1
// <include/linux/scc.h>
.TS
l l l.
TIOCSCCINI	void
TIOCCHANINI	const struct scc_modem *
TIOCGKISS	struct ioctl_command *	// I-O
TIOCSKISS	const struct ioctl_command *
TIOCSCCSTAT	struct scc_stat *
.TE
.sp 1
// <include/linux/scsi.h>
.TS
l l.
SCSI_IOCTL_GET_IDLUN	struct { int [2]; } *
SCSI_IOCTL_TAGGED_ENABLE	   void
SCSI_IOCTL_TAGGED_DISABLE 	void
.TE
.TS
l l l.
SCSI_IOCTL_PROBE_HOST	const int *	// MORE
.TE
.sp 1
// <include/linux/smb_fs.h>
.TS
l l l.
SMB_IOC_GETMOUNTUID	uid_t *
.TE
.sp 1
// <include/uapi/linux/sockios.h> see
.BR netdevice (7)
.PP
.TS
l l l.
SIOCADDRT	const struct rtentry *	// MORE
SIOCDELRT	const struct rtentry *	// MORE
SIOCGIFNAME	char []
SIOCSIFLINK	void
SIOCGIFCONF	struct ifconf *	// MORE // I-O
SIOCGIFFLAGS	struct ifreq *	// I-O
SIOCSIFFLAGS	const struct ifreq *
SIOCGIFADDR	struct ifreq *	// I-O
SIOCSIFADDR	const struct ifreq *
SIOCGIFDSTADDR	struct ifreq *	// I-O
SIOCSIFDSTADDR	const struct ifreq *
SIOCGIFBRDADDR	struct ifreq *	// I-O
SIOCSIFBRDADDR	const struct ifreq *
SIOCGIFNETMASK	struct ifreq *	// I-O
SIOCSIFNETMASK	const struct ifreq *
SIOCGIFMETRIC	struct ifreq *	// I-O
SIOCSIFMETRIC	const struct ifreq *
SIOCGIFMEM	struct ifreq *	// I-O
SIOCSIFMEM	const struct ifreq *
SIOCGIFMTU	struct ifreq *	// I-O
SIOCSIFMTU	const struct ifreq *
.TE
.TS
l l l.
OLD_SIOCGIFHWADDR	struct ifreq *	// I-O
SIOCSIFHWADDR	const struct ifreq *	// MORE
SIOCGIFENCAP	int *
SIOCSIFENCAP	const int *
SIOCGIFHWADDR	struct ifreq *	// I-O
SIOCGIFSLAVE	void
SIOCSIFSLAVE	void
SIOCADDMULTI	const struct ifreq *
SIOCDELMULTI	const struct ifreq *
SIOCADDRTOLD	void
SIOCDELRTOLD	void
SIOCDARP	const struct arpreq *
SIOCGARP	struct arpreq *	// I-O
SIOCSARP	const struct arpreq *
SIOCDRARP	const struct arpreq *
SIOCGRARP	struct arpreq *	// I-O
SIOCSRARP	const struct arpreq *
SIOCGIFMAP	struct ifreq *	// I-O
SIOCSIFMAP	const struct ifreq *
.TE
.sp 1
// <include/linux/soundcard.h>
.TS
l l.
SNDCTL_SEQ_RESET	void
SNDCTL_SEQ_SYNC	void
.TE
.TS
l l l.
SNDCTL_SYNTH_INFO	struct synth_info *	// I-O
SNDCTL_SEQ_CTRLRATE	int *	// I-O
SNDCTL_SEQ_GETOUTCOUNT	int *
SNDCTL_SEQ_GETINCOUNT	int *
SNDCTL_SEQ_PERCMODE	void
.TE
.TS
l l.
SNDCTL_FM_LOAD_INSTR	const struct sbi_instrument *
.TE
.TS
l l l.
SNDCTL_SEQ_TESTMIDI	const int *
SNDCTL_SEQ_RESETSAMPLES	const int *
SNDCTL_SEQ_NRSYNTHS	int *
SNDCTL_SEQ_NRMIDIS	int *
SNDCTL_MIDI_INFO	struct midi_info *	// I-O
SNDCTL_SEQ_THRESHOLD	const int *
SNDCTL_SYNTH_MEMAVL	int *	// I-O
SNDCTL_FM_4OP_ENABLE	const int *
SNDCTL_PMGR_ACCESS	struct patmgr_info *	// I-O
SNDCTL_SEQ_PANIC	void
.TE
.TS
l l.
SNDCTL_SEQ_OUTOFBAND	const struct seq_event_rec *
.TE
.TS
l l l.
SNDCTL_TMR_TIMEBASE	int *	// I-O
SNDCTL_TMR_START	void
SNDCTL_TMR_STOP	void
SNDCTL_TMR_CONTINUE	void
SNDCTL_TMR_TEMPO	int *	// I-O
SNDCTL_TMR_SOURCE	int *	// I-O
SNDCTL_TMR_METRONOME	const int *
SNDCTL_TMR_SELECT	int *	// I-O
SNDCTL_PMGR_IFACE	struct patmgr_info *	// I-O
SNDCTL_MIDI_PRETIME	int *	// I-O
SNDCTL_MIDI_MPUMODE	const int *
.TE
.TS
l l l.
SNDCTL_MIDI_MPUCMD	struct mpu_command_rec *	// I-O
.TE
.TS
l l l.
SNDCTL_DSP_RESET	void
SNDCTL_DSP_SYNC	void
SNDCTL_DSP_SPEED	int *	// I-O
SNDCTL_DSP_STEREO	int *	// I-O
SNDCTL_DSP_GETBLKSIZE	int *	// I-O
SOUND_PCM_WRITE_CHANNELS	int *	// I-O
SOUND_PCM_WRITE_FILTER	int *	// I-O
SNDCTL_DSP_POST	void
SNDCTL_DSP_SUBDIVIDE	int *	// I-O
SNDCTL_DSP_SETFRAGMENT	int *	// I-O
SNDCTL_DSP_GETFMTS	int *
SNDCTL_DSP_SETFMT	int *	// I-O
.TE
.TS
l l.
SNDCTL_DSP_GETOSPACE	struct audio_buf_info *
SNDCTL_DSP_GETISPACE	struct audio_buf_info *
SNDCTL_DSP_NONBLOCK	void
SOUND_PCM_READ_RATE	int *
SOUND_PCM_READ_CHANNELS	int *
SOUND_PCM_READ_BITS	int *
SOUND_PCM_READ_FILTER	int *
SNDCTL_COPR_RESET	void
SNDCTL_COPR_LOAD	const struct copr_buffer *
.TE
.TS
l l l.
SNDCTL_COPR_RDATA	struct copr_debug_buf *	// I-O
SNDCTL_COPR_RCODE	struct copr_debug_buf *	// I-O
.TE
.TS
l l.
SNDCTL_COPR_WDATA	const struct copr_debug_buf *
SNDCTL_COPR_WCODE	const struct copr_debug_buf *
.TE
.TS
l l l.
SNDCTL_COPR_RUN	struct copr_debug_buf *	// I-O
SNDCTL_COPR_HALT	struct copr_debug_buf *	// I-O
.TE
.TS
l l.
SNDCTL_COPR_SENDMSG	const struct copr_msg *
SNDCTL_COPR_RCVMSG	struct copr_msg *
SOUND_MIXER_READ_VOLUME	int *
SOUND_MIXER_READ_BASS	int *
SOUND_MIXER_READ_TREBLE	int *
SOUND_MIXER_READ_SYNTH	int *
SOUND_MIXER_READ_PCM	int *
SOUND_MIXER_READ_SPEAKER	int *
SOUND_MIXER_READ_LINE	int *
SOUND_MIXER_READ_MIC	int *
SOUND_MIXER_READ_CD	int *
SOUND_MIXER_READ_IMIX	int *
SOUND_MIXER_READ_ALTPCM	int *
SOUND_MIXER_READ_RECLEV	int *
SOUND_MIXER_READ_IGAIN	int *
SOUND_MIXER_READ_OGAIN	int *
SOUND_MIXER_READ_LINE1	int *
SOUND_MIXER_READ_LINE2	int *
SOUND_MIXER_READ_LINE3	int *
SOUND_MIXER_READ_MUTE	int *
SOUND_MIXER_READ_ENHANCE	int *
SOUND_MIXER_READ_LOUD	int *
SOUND_MIXER_READ_RECSRC	int *
SOUND_MIXER_READ_DEVMASK	int *
SOUND_MIXER_READ_RECMASK	int *
SOUND_MIXER_READ_STEREODEVS	int *
SOUND_MIXER_READ_CAPS	int *
.TE
.TS
l l l.
SOUND_MIXER_WRITE_VOLUME	int *	// I-O
SOUND_MIXER_WRITE_BASS	int *	// I-O
SOUND_MIXER_WRITE_TREBLE	int *	// I-O
SOUND_MIXER_WRITE_SYNTH	int *	// I-O
SOUND_MIXER_WRITE_PCM	int *	// I-O
SOUND_MIXER_WRITE_SPEAKER	int *	// I-O
SOUND_MIXER_WRITE_LINE	int *	// I-O
SOUND_MIXER_WRITE_MIC	int *	// I-O
SOUND_MIXER_WRITE_CD	int *	// I-O
SOUND_MIXER_WRITE_IMIX	int *	// I-O
SOUND_MIXER_WRITE_ALTPCM	int *	// I-O
SOUND_MIXER_WRITE_RECLEV	int *	// I-O
SOUND_MIXER_WRITE_IGAIN	int *	// I-O
SOUND_MIXER_WRITE_OGAIN	int *	// I-O
SOUND_MIXER_WRITE_LINE1	int *	// I-O
SOUND_MIXER_WRITE_LINE2	int *	// I-O
SOUND_MIXER_WRITE_LINE3	int *	// I-O
SOUND_MIXER_WRITE_MUTE	int *	// I-O
SOUND_MIXER_WRITE_ENHANCE	int *	// I-O
SOUND_MIXER_WRITE_LOUD	int *	// I-O
SOUND_MIXER_WRITE_RECSRC	int *	// I-O
.TE
.sp 1
// <include/linux/timerfd.h> see
.BR timerfd_create (2)
.TS
l l l.
TFD_IOC_SET_TICKS	uint64_t *
.TE
.sp 1
// <include/linux/umsdos_fs.h>
.TS
l l l.
UMSDOS_READDIR_DOS	struct umsdos_ioctl *	// I-O
UMSDOS_UNLINK_DOS	const struct umsdos_ioctl *
UMSDOS_RMDIR_DOS	const struct umsdos_ioctl *
UMSDOS_STAT_DOS	struct umsdos_ioctl *	// I-O
UMSDOS_CREAT_EMD	const struct umsdos_ioctl *
UMSDOS_UNLINK_EMD	const struct umsdos_ioctl *
UMSDOS_READDIR_EMD	struct umsdos_ioctl *	// I-O
UMSDOS_GETVERSION	struct umsdos_ioctl *
UMSDOS_INIT_EMD	void
UMSDOS_DOS_SETUP	const struct umsdos_ioctl *
UMSDOS_RENAME_DOS	const struct umsdos_ioctl *
.TE
.sp 1
// <include/linux/vt.h>
.TS
l l.
VT_OPENQRY	int *
VT_GETMODE	struct vt_mode *
VT_SETMODE	const struct vt_mode *
VT_GETSTATE	struct vt_stat *
VT_SENDSIG	void
VT_RELDISP	int
VT_ACTIVATE	int
VT_WAITACTIVE	int
VT_DISALLOCATE	int
VT_RESIZE	const struct vt_sizes *
VT_RESIZEX	const struct vt_consize *
.TE
.sp 1
// More arguments.
Some ioctl's take a pointer to a structure which contains additional
pointers.
These are documented here in alphabetical order.
.PP
.B CDROMREADAUDIO
takes an input pointer
.IR "const struct cdrom_read_audio\ *" .
The
.I buf
field points to an output buffer of length
.IR "nframes\ * CD_FRAMESIZE_RAW" .
.PP
.BR CDROMREADCOOKED ,
.BR CDROMREADMODE1 ,
.BR CDROMREADMODE2 ,
and
.B CDROMREADRAW
take an input pointer
.IR "const struct cdrom_msf\ *" .
They use the same pointer as an output pointer to
.IR "char []" .
The length varies by request.
For
.BR CDROMREADMODE1 ,
most drivers use CD_FRAMESIZE, but the Optics Storage
driver uses OPT_BLOCKSIZE instead (both have the numerical value
2048).
.PP
.nf
    CDROMREADCOOKED    char [CD_FRAMESIZE]
    CDROMREADMODE1     char [CD_FRAMESIZE or OPT_BLOCKSIZE]
    CDROMREADMODE2     char [CD_FRAMESIZE_RAW0]
    CDROMREADRAW       char [CD_FRAMESIZE_RAW]
.fi
.PP
.BR EQL_ENSLAVE ,
.BR EQL_EMANCIPATE ,
.BR EQL_GETSLAVECFG ,
.BR EQL_SETSLAVECFG ,
.BR EQL_GETMASTERCFG ,
and
.B EQL_SETMASTERCFG
take a
.IR "struct ifreq\ *" .
The
.I ifr_data
field is a pointer to another structure as follows:
.PP
.nf
    EQL_ENSLAVE         const struct slaving_request *
    EQL_EMANCIPATE      const struct slaving_request *
    EQL_GETSLAVECFG     struct slave_config *           // I-O
    EQL_SETSLAVECFG     const struct slave_config *
    EQL_GETMASTERCFG    struct master_config *
    EQL_SETMASTERCFG    const struct master_config *
.fi
.PP
.B FDRAWCMD
takes a
.IR "struct floppy raw_cmd\ *" .
If
.I flags & FD_RAW_WRITE
is nonzero, then
.I data
points to an input buffer of length
.IR length .
If
.I flags & FD_RAW_READ
is nonzero, then
.I data
points to an output buffer of length
.IR length .
.PP
.B GIO_FONTX
and
.B PIO_FONTX
take a
.I struct console_font_desc\ *
or a
.IR "const struct console_font_desc\ *" ,
respectively.
.I chardata
points to a buffer of
.IR "char [charcount]" .
This is an output buffer for
.B GIO_FONTX
and an input buffer for
.BR PIO_FONTX .
.PP
.B GIO_UNIMAP
and
.B PIO_UNIMAP
take a
.I "struct unimapdesc\ *"
or a
.IR "const struct unimapdesc\ *" ,
respectively.
.I entries
points to a buffer of
.IR "struct unipair [entry_ct]" .
This is an output buffer for
.B GIO_UNIMAP
and an input buffer for
.BR PIO_UNIMAP .
.PP
KDADDIO, KDDELIO, KDDISABIO, and KDENABIO enable or disable access to
I/O ports.
They are essentially alternate interfaces to 'ioperm'.
.PP
.B KDMAPDISP
and
.B KDUNMAPDISP
enable or disable memory mappings or I/O port access.
They are not implemented in the kernel.
.PP
.B SCSI_IOCTL_PROBE_HOST
takes an input pointer
.IR "const int\ *" ,
which is a length.
It uses the same pointer as an output pointer to a
.I char []
buffer of this length.
.PP
.B SIOCADDRT
and
.B SIOCDELRT
take an input pointer whose type depends on
the protocol:
.PP
.nf
    Most protocols      const struct rtentry *
    AX.25               const struct ax25_route *
    NET/ROM             const struct nr_route_struct *
    INET6               const struct in6_rtmsg *
.fi
.PP
.B SIOCGIFCONF
takes a
.IR "struct ifconf\ *" .
The
.I ifc_buf
field points to a buffer of length
.I ifc_len
bytes, into which the kernel writes a list of type
.IR "struct ifreq []" .
.PP
.B SIOCSIFHWADDR
takes an input pointer whose type depends on the protocol:
.PP
.nf
    Most protocols      const struct ifreq *
    AX.25               const char [AX25_ADDR_LEN]
.fi
.PP
.B TIOCLINUX
takes a
.IR "const char\ *" .
It uses this to distinguish several
independent subcases.
In the table below,
.I N + foo
means
.I foo
after an N-byte pad.
.I struct selection
is implicitly defined in
.IR drivers/char/selection.c
.PP
.nf
    TIOCLINUX-2         1 + const struct selection *
    TIOCLINUX-3         void
    TIOCLINUX-4         void
    TIOCLINUX-5         4 + const struct { long [8]; } *
    TIOCLINUX-6         char *
    TIOCLINUX-7         char *
    TIOCLINUX-10        1 + const char *
.fi
.PP
// Duplicate ioctls
.PP
This list does not include ioctls in the range
.B SIOCDEVPRIVATE
and
.BR SIOCPROTOPRIVATE .
.TS
l l l.
FDSETPRM	FIBMAP
FDDEFPRM	FIGETBSZ
SCSI_IOCTL_GET_IDLUN
SNDCTL_TMR_START	TCSETS
SNDCTL_TMR_STOP	TCSETSW
SNDCTL_TMR_CONTINUE	TCSETSF
.TE
.SH SEE ALSO
.BR ioctl (2),
.BR ioctl_fat (2),
.BR netdevice (7)