---
name: "ioctl_list"
section: "2"
platform: "linux"
package: "manpages-dev"
version: "4.16-2"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/ioctl_list"
---

# ioctl\_list(2)

list of ioctl calls in Linux/i386 kernel

## NAME

ioctl\_list - list of ioctl calls in Linux/i386 kernel

## 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 *\</usr/include/{asm,linux}/\*.h\>*. For each ioctl, its numerical value, its name, and its argument type are given.

An argument type of *const struct foo \** means the argument is input to the kernel. *struct foo \** means the kernel outputs the argument. If the kernel uses the argument for both input and output, this is marked with *// I-O*.

Some ioctls take more arguments or return more values than a single structure. These are marked *// MORE* and documented further in a separate section.

This list is very incomplete.

### ioctl structure

Ioctl command values are 32-bit constants. In principle these constants are completely arbitrary, but people have tried to build some structure into them.

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 **HDIO\_\*** ioctls, 0x06 for the **LP\*** ioctls. And sometimes one or more ASCII letters were used. For example, **TCGETS** has value 0x00005401, with 0x54 = 'T' indicating the terminal driver, and **CYGETTIMEOUT** has value 0x00435906, with 0x43 0x59 = 'C' 'Y' indicating the cyclades driver.

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.

The macros describing this structure live in *\<asm/ioctl.h\>* and are **\_IO(type,nr)** and **{\_IOR,\_IOW,\_IOWR}(type,nr,size)**. They use *sizeof(size)* so that size is a misnomer here: this third argument is a data type.

Note that the size bits are very unreliable: in lots of cases they are wrong, either because of buggy macros using *sizeof(sizeof(struct))*, or because of legacy values.

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.

## 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.

// Main table.

// \<include/asm-i386/socket.h\>

| | | |
| --- | --- | --- |
| 0x00008901 | FIOSETOWN | const int \* |
| 0x00008902 | SIOCSPGRP | const int \* |
| 0x00008903 | FIOGETOWN | int \* |
| 0x00008904 | SIOCGPGRP | int \* |
| 0x00008905 | SIOCATMAR | int \* |
| 0x00008906 | SIOCGSTAMP | timeval \* |

// \<include/asm-i386/termios.h\>

| | | | |
| --- | --- | --- | --- |
| 0x00005401 | TCGETS | struct termios \* |
| 0x00005402 | TCSETS | const struct termios \* |
| 0x00005403 | TCSETSW | const struct termios \* |
| 0x00005404 | TCSETSF | const struct termios \* |
| 0x00005405 | TCGETA | struct termio \* |
| 0x00005406 | TCSETA | const struct termio \* |
| 0x00005407 | TCSETAW | const struct termio \* |
| 0x00005408 | TCSETAF | const struct termio \* |
| 0x00005409 | TCSBRK | int |
| 0x0000540A | TCXONC | int |
| 0x0000540B | TCFLSH | int |
| 0x0000540C | TIOCEXCL | void |
| 0x0000540D | TIOCNXCL | void |
| 0x0000540E | TIOCSCTTY | int |
| 0x0000540F | TIOCGPGRP | pid\_t \* |
| 0x00005410 | TIOCSPGRP | const pid\_t \* |
| 0x00005411 | TIOCOUTQ | int \* |
| 0x00005412 | TIOCSTI | const char \* |
| 0x00005413 | TIOCGWINSZ | struct winsize \* |
| 0x00005414 | TIOCSWINSZ | const struct winsize \* |
| 0x00005415 | TIOCMGET | int \* |
| 0x00005416 | TIOCMBIS | const int \* |
| 0x00005417 | TIOCMBIC | const int \* |
| 0x00005418 | TIOCMSET | const int \* |
| 0x00005419 | TIOCGSOFTCAR | int \* |
| 0x0000541A | TIOCSSOFTCAR | const int \* |
| 0x0000541B | FIONREAD | int \* |
| 0x0000541B | TIOCINQ | int \* |
| 0x0000541C | TIOCLINUX | const char \* | // MORE |
| 0x0000541D | TIOCCONS | void |
| 0x0000541E | TIOCGSERIAL | struct serial\_struct \* |
| 0x0000541F | TIOCSSERIAL | const struct serial\_struct \* |
| 0x00005420 | TIOCPKT | const int \* |
| 0x00005421 | FIONBIO | const int \* |
| 0x00005422 | TIOCNOTTY | void |
| 0x00005423 | TIOCSETD | const int \* |
| 0x00005424 | TIOCGETD | int \* |
| 0x00005425 | TCSBRKP | int |
| 0x00005426 | TIOCTTYGSTRUCT | struct tty\_struct \* |
| 0x00005450 | FIONCLEX | void |
| 0x00005451 | FIOCLEX | void |
| 0x00005452 | FIOASYNC | const int \* |
| 0x00005453 | TIOCSERCONFIG | void |
| 0x00005454 | TIOCSERGWILD | int \* |
| 0x00005455 | TIOCSERSWILD | const int \* |
| 0x00005456 | TIOCGLCKTRMIOS | struct termios \* |
| 0x00005457 | TIOCSLCKTRMIOS | const struct termios \* |
| 0x00005458 | TIOCSERGSTRUCT | struct async\_struct \* |
| 0x00005459 | TIOCSERGETLSR | int \* |

| | | |
| --- | --- | --- |
| 0x0000545A | TIOCSERGETMULTI | struct serial\_multiport\_struct \* |
| 0x0000545B | TIOCSERSETMULTI | const struct serial\_multiport\_struct \* |

// \<include/linux/ax25.h\>

| | | | |
| --- | --- | --- | --- |
| 0x000089E0 | SIOCAX25GETUID | const struct sockaddr\_ax25 \* |
| 0x000089E1 | SIOCAX25ADDUID | const struct sockaddr\_ax25 \* |
| 0x000089E2 | SIOCAX25DELUID | const struct sockaddr\_ax25 \* |
| 0x000089E3 | SIOCAX25NOUID | const int \* |
| 0x000089E4 | SIOCAX25DIGCTL | const int \* |
| 0x000089E5 | SIOCAX25GETPARMS | struct ax25\_parms\_struct \* | // I-O |

| | | |
| --- | --- | --- |
| 0x000089E6 | SIOCAX25SETPARMS | const struct ax25\_parms\_struct \* |

// \<include/linux/cdk.h\>

| | | |
| --- | --- | --- |
| 0x00007314 | STL\_BINTR | void |
| 0x00007315 | STL\_BSTART | void |
| 0x00007316 | STL\_BSTOP | void |
| 0x00007317 | STL\_BRESET | void |

// \<include/linux/cdrom.h\>

| | | |
| --- | --- | --- |
| 0x00005301 | CDROMPAUSE | void |
| 0x00005302 | CDROMRESUME | void |
| 0x00005303 | CDROMPLAYMSF | const struct cdrom\_msf \* |
| 0x00005304 | CDROMPLAYTRKIND | const struct cdrom\_ti \* |
| 0x00005305 | CDROMREADTOCHDR | struct cdrom\_tochdr \* |

| | | | |
| --- | --- | --- | --- |
| 0x00005306 | CDROMREADTOCENTRY | struct cdrom\_tocentry \* | // I-O |

| | | | |
| --- | --- | --- | --- |
| 0x00005307 | CDROMSTOP | void |
| 0x00005308 | CDROMSTART | void |
| 0x00005309 | CDROMEJECT | void |
| 0x0000530A | CDROMVOLCTRL | const struct cdrom\_volctrl \* |
| 0x0000530B | CDROMSUBCHNL | struct cdrom\_subchnl \* | // I-O |
| 0x0000530C | CDROMREADMODE2 | const struct cdrom\_msf \* | // MORE |
| 0x0000530D | CDROMREADMODE1 | const struct cdrom\_msf \* | // MORE |
| 0x0000530E | CDROMREADAUDIO | const struct cdrom\_read\_audio \* | // MORE |
| 0x0000530F | CDROMEJECT\_SW | int |

| | | | |
| --- | --- | --- | --- |
| 0x00005310 | CDROMMULTISESSION | struct cdrom\_multisession \* | // I-O |

| | | | |
| --- | --- | --- | --- |
| 0x00005311 | CDROM\_GET\_UPC | struct { char \[8\]; } \* |
| 0x00005312 | CDROMRESET | void |
| 0x00005313 | CDROMVOLREAD | struct cdrom\_volctrl \* |
| 0x00005314 | CDROMREADRAW | const struct cdrom\_msf \* | // MORE |
| 0x00005315 | CDROMREADCOOKED | const struct cdrom\_msf \* | // MORE |
| 0x00005316 | CDROMSEEK | const struct cdrom\_msf \* |

// \<include/linux/cm206.h\>

| | | |
| --- | --- | --- |
| 0x00002000 | CM206CTL\_GET\_STAT | int |
| 0x00002001 | CM206CTL\_GET\_LAST\_STAT | int |

// \<include/linux/cyclades.h\>

| | | |
| --- | --- | --- |
| 0x00435901 | CYGETMON | struct cyclades\_monitor \* |
| 0x00435902 | CYGETTHRESH | int \* |
| 0x00435903 | CYSETTHRESH | int |
| 0x00435904 | CYGETDEFTHRESH | int \* |
| 0x00435905 | CYSETDEFTHRESH | int |
| 0x00435906 | CYGETTIMEOUT | int \* |
| 0x00435907 | CYSETTIMEOUT | int |
| 0x00435908 | CYGETDEFTIMEOUT | int \* |
| 0x00435909 | CYSETDEFTIMEOUT | int |

// \<include/linux/fd.h\>

| | | |
| --- | --- | --- |
| 0x00000000 | FDCLRPRM | void |
| 0x00000001 | FDSETPRM | const struct floppy\_struct \* |
| 0x00000002 | FDDEFPRM | const struct floppy\_struct \* |
| 0x00000003 | FDGETPRM | struct floppy\_struct \* |
| 0x00000004 | FDMSGON | void |
| 0x00000005 | FDMSGOFF | void |
| 0x00000006 | FDFMTBEG | void |
| 0x00000007 | FDFMTTRK | const struct format\_descr \* |
| 0x00000008 | FDFMTEND | void |
| 0x0000000A | FDSETEMSGTRESH | int |
| 0x0000000B | FDFLUSH | void |
| 0x0000000C | FDSETMAXERRS | const struct floppy\_max\_errors \* |
| 0x0000000E | FDGETMAXERRS | struct floppy\_max\_errors \* |
| 0x00000010 | FDGETDRVTYP | struct { char \[16\]; } \* |
| 0x00000014 | FDSETDRVPRM | const struct floppy\_drive\_params \* |
| 0x00000015 | FDGETDRVPRM | struct floppy\_drive\_params \* |
| 0x00000016 | FDGETDRVSTAT | struct floppy\_drive\_struct \* |
| 0x00000017 | FDPOLLDRVSTAT | struct floppy\_drive\_struct \* |
| 0x00000018 | FDRESET | int |
| 0x00000019 | FDGETFDCSTAT | struct floppy\_fdc\_state \* |
| 0x0000001B | FDWERRORCLR | void |
| 0x0000001C | FDWERRORGET | struct floppy\_write\_errors \* |

| | | | |
| --- | --- | --- | --- |
| 0x0000001E | FDRAWCMD | struct floppy\_raw\_cmd \* | // MORE // I-O |
| 0x00000028 | FDTWADDLE | void |

// \<include/linux/fs.h\>

| | | | |
| --- | --- | --- | --- |
| 0x0000125D | BLKROSET | const int \* |
| 0x0000125E | BLKROGET | int \* |
| 0x0000125F | BLKRRPART | void |
| 0x00001260 | BLKGETSIZE | unsigned long \* |
| 0x00001261 | BLKFLSBUF | void |
| 0x00001262 | BLKRASET | unsigned long |
| 0x00001263 | BLKRAGET | unsigned long \* |
| 0x00000001 | FIBMAP | int \* | // I-O |
| 0x00000002 | FIGETBSZ | int \* |
| 0x80086601 | FS\_IOC\_GETFLAGS | int \* |
| 0x40086602 | FS\_IOC\_SETFLAGS | int \* |
| 0x80087601 | FS\_IOC\_GETVERSION | int \* |
| 0x40087602 | FS\_IOC\_SETVERSION | int \* |
| 0xC020660B | FS\_IOC\_FIEMAP | struct fiemap \* |
| 0x40086602 | FS\_IOC32\_SETFLAGS | int \* |
| 0x40086602 | FS\_IOC32\_SETFLAGS | int \* |
| 0x80047601 | FS\_IOC32\_GETVERSION | int \* |
| 0x40047602 | FS\_IOC32\_SETVERSION | int \* |

// \<include/linux/hdreg.h\>

| | | | |
| --- | --- | --- | --- |
| 0x00000301 | HDIO\_GETGEO | struct hd\_geometry \* |
| 0x00000302 | HDIO\_GET\_UNMASKINTR | int \* |
| 0x00000304 | HDIO\_GET\_MULTCOUNT | int \* |
| 0x00000307 | HDIO\_GET\_IDENTITY | struct hd\_driveid \* |
| 0x00000308 | HDIO\_GET\_KEEPSETTINGS | int \* |
| 0x00000309 | HDIO\_GET\_CHIPSET | int \* |
| 0x0000030A | HDIO\_GET\_NOWERR | int \* |
| 0x0000030B | HDIO\_GET\_DMA | int \* |
| 0x0000031F | HDIO\_DRIVE\_CMD | int \* | // I-O |
| 0x00000321 | HDIO\_SET\_MULTCOUNT | int |
| 0x00000322 | HDIO\_SET\_UNMASKINTR | int |
| 0x00000323 | HDIO\_SET\_KEEPSETTINGS | int |
| 0x00000324 | HDIO\_SET\_CHIPSET | int |
| 0x00000325 | HDIO\_SET\_NOWERR | int |
| 0x00000326 | HDIO\_SET\_DMA | int |

// \<include/linux/if\_eql.h\>

| | | | |
| --- | --- | --- | --- |
| 0x000089F0 | EQL\_ENSLAVE | struct ifreq \* | // MORE // I-O |
| 0x000089F1 | EQL\_EMANCIPATE | struct ifreq \* | // MORE // I-O |
| 0x000089F2 | EQL\_GETSLAVECFG | struct ifreq \* | // MORE // I-O |
| 0x000089F3 | EQL\_SETSLAVECFG | struct ifreq \* | // MORE // I-O |
| 0x000089F4 | EQL\_GETMASTRCFG | struct ifreq \* | // MORE // I-O |
| 0x000089F5 | EQL\_SETMASTRCFG | struct ifreq \* | // MORE // I-O |

// \<include/linux/if\_plip.h\>

| | | | |
| --- | --- | --- | --- |
| 0x000089F0 | SIOCDEVPLIP | struct ifreq \* | // I-O |

// \<include/linux/if\_ppp.h\>

| | | |
| --- | --- | --- |
| 0x00005490 | PPPIOCGFLAGS | int \* |
| 0x00005491 | PPPIOCSFLAGS | const int \* |
| 0x00005492 | PPPIOCGASYNCMAP | int \* |
| 0x00005493 | PPPIOCSASYNCMAP | const int \* |
| 0x00005494 | PPPIOCGUNIT | int \* |
| 0x00005495 | PPPIOCSINPSIG | const int \* |
| 0x00005497 | PPPIOCSDEBUG | const int \* |
| 0x00005498 | PPPIOCGDEBUG | int \* |
| 0x00005499 | PPPIOCGSTAT | struct ppp\_stats \* |
| 0x0000549A | PPPIOCGTIME | struct ppp\_ddinfo \* |
| 0x0000549B | PPPIOCGXASYNCMAP | struct { int \[8\]; } \* |
| 0x0000549C | PPPIOCSXASYNCMAP | const struct { int \[8\]; } \* |
| 0x0000549D | PPPIOCSMRU | const int \* |
| 0x0000549E | PPPIOCRASYNCMAP | const int \* |
| 0x0000549F | PPPIOCSMAXCID | const int \* |

// \<include/linux/ipx.h\>

| | | |
| --- | --- | --- |
| 0x000089E0 | SIOCAIPXITFCRT | const char \* |
| 0x000089E1 | SIOCAIPXPRISLT | const char \* |
| 0x000089E2 | SIOCIPXCFGDATA | struct ipx\_config\_data \* |

// \<include/linux/kd.h\>

| | | |
| --- | --- | --- |
| 0x00004B60 | GIO\_FONT | struct { char \[8192\]; } \* |
| 0x00004B61 | PIO\_FONT | const struct { char \[8192\]; } \* |

| | | | |
| --- | --- | --- | --- |
| 0x00004B6B | GIO\_FONTX | struct console\_font\_desc \* | // MORE // I-O |
| 0x00004B6C | PIO\_FONTX | const struct console\_font\_desc \* | //MORE |

| | | |
| --- | --- | --- |
| 0x00004B70 | GIO\_CMAP | struct { char \[48\]; } \* |
| 0x00004B71 | PIO\_CMAP | const struct { char \[48\]; } |

| | | | |
| --- | --- | --- | --- |
| 0x00004B2F | KIOCSOUND | int |
| 0x00004B30 | KDMKTONE | int |
| 0x00004B31 | KDGETLED | char \* |
| 0x00004B32 | KDSETLED | int |
| 0x00004B33 | KDGKBTYPE | char \* |
| 0x00004B34 | KDADDIO | int | // MORE |
| 0x00004B35 | KDDELIO | int | // MORE |
| 0x00004B36 | KDENABIO | void | // MORE |
| 0x00004B37 | KDDISABIO | void | // MORE |
| 0x00004B3A | KDSETMODE | int |
| 0x00004B3B | KDGETMODE | int \* |
| 0x00004B3C | KDMAPDISP | void | // MORE |
| 0x00004B3D | KDUNMAPDISP | void | // MORE |
| 0x00004B40 | GIO\_SCRNMAP | struct { char \[E\_TABSZ\]; } \* |

| | | |
| --- | --- | --- |
| 0x00004B41 | PIO\_SCRNMAP | const struct { char \[E\_TABSZ\]; } \* |
| 0x00004B69 | GIO\_UNISCRNMAP | struct { short \[E\_TABSZ\]; } \* |
| 0x00004B6A | PIO\_UNISCRNMAP | const struct { short \[E\_TABSZ\]; } \* |

| | | | |
| --- | --- | --- | --- |
| 0x00004B66 | GIO\_UNIMAP | struct unimapdesc \* | // MORE // I-O |
| 0x00004B67 | PIO\_UNIMAP | const struct unimapdesc \* | // MORE |
| 0x00004B68 | PIO\_UNIMAPCLR | const struct unimapinit \* |
| 0x00004B44 | KDGKBMODE | int \* |
| 0x00004B45 | KDSKBMODE | int |
| 0x00004B62 | KDGKBMETA | int \* |
| 0x00004B63 | KDSKBMETA | int |
| 0x00004B64 | KDGKBLED | int \* |
| 0x00004B65 | KDSKBLED | int |
| 0x00004B46 | KDGKBENT | struct kbentry \* | // I-O |
| 0x00004B47 | KDSKBENT | const struct kbentry \* |
| 0x00004B48 | KDGKBSENT | struct kbsentry \* | // I-O |
| 0x00004B49 | KDSKBSENT | const struct kbsentry \* |
| 0x00004B4A | KDGKBDIACR | struct kbdiacrs \* |
| 0x00004B4B | KDSKBDIACR | const struct kbdiacrs \* |
| 0x00004B4C | KDGETKEYCODE | struct kbkeycode \* | // I-O |
| 0x00004B4D | KDSETKEYCODE | const struct kbkeycode \* |
| 0x00004B4E | KDSIGACCEPT | int |

// \<include/linux/lp.h\>

| | | |
| --- | --- | --- |
| 0x00000601 | LPCHAR | int |
| 0x00000602 | LPTIME | int |
| 0x00000604 | LPABORT | int |
| 0x00000605 | LPSETIRQ | int |
| 0x00000606 | LPGETIRQ | int \* |
| 0x00000608 | LPWAIT | int |
| 0x00000609 | LPCAREFUL | int |
| 0x0000060A | LPABORTOPEN | int |
| 0x0000060B | LPGETSTATUS | int \* |
| 0x0000060C | LPRESET | void |
| 0x0000060D | LPGETSTATS | struct lp\_stats \* |

// \<include/linux/mroute.h\>

| | | | |
| --- | --- | --- | --- |
| 0x000089E0 | SIOCGETVIFCNT | struct sioc\_vif\_req \* | // I-O |
| 0x000089E1 | SIOCGETSGCNT | struct sioc\_sg\_req \* | // I-O |

// \<include/linux/msdos\_fs.h\> see [**ioctl\_fat**(2)](/ioctl_fat/2.md)

| | | |
| --- | --- | --- |
| 0x82307201 | VFAT\_IOCTL\_READDIR\_BOTH | struct dirent \[2\] |
| 0x82307202 | VFAT\_IOCTL\_READDIR\_SHORT | struct dirent \[2\] |
| 0x80047210 | FAT\_IOCTL\_GET\_ATTRIBUTES | \_\_u32 \* |
| 0x40047211 | FAT\_IOCTL\_SET\_ATTRIBUTES | const \_\_u32 \* |
| 0x80047213 | FAT\_IOCTL\_GET\_VOLUME\_ID | \_\_u32 \* |

// \<include/linux/mtio.h\>

| | | |
| --- | --- | --- |
| 0x40086D01 | MTIOCTOP | const struct mtop \* |
| 0x801C6D02 | MTIOCGET | struct mtget \* |
| 0x80046D03 | MTIOCPOS | struct mtpos \* |
| 0x80206D04 | MTIOCGETCONFIG | struct mtconfiginfo \* |
| 0x40206D05 | MTIOCSETCONFIG | const struct mtconfiginfo \* |

// \<include/linux/netrom.h\>

| | | | |
| --- | --- | --- | --- |
| 0x000089E0 | SIOCNRGETPARMS | struct nr\_parms\_struct \* | // I-O |
| 0x000089E1 | SIOCNRSETPARMS | const struct nr\_parms\_struct \* |
| 0x000089E2 | SIOCNRDECOBS | void |
| 0x000089E3 | SIOCNRRTCTL | const int \* |

// \<include/uapi/linux/wireless.h\>\
 // This API is deprecated.\
 // It is being replaced by nl80211 and cfg80211. See\
 // *https://wireless.wiki.kernel.org/en/developers/documentation/nl80211*

| | | |
| --- | --- | --- |
| 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 \* |

// \<include/linux/sbpcd.h\>

| | | |
| --- | --- | --- |
| 0x00009000 | DDIOCSDBG | const int \* |
| 0x00005382 | CDROMAUDIOBUFSIZ | int |

// \<include/linux/scc.h\>

| | | | |
| --- | --- | --- | --- |
| 0x00005470 | TIOCSCCINI | void |
| 0x00005471 | TIOCCHANINI | const struct scc\_modem \* |
| 0x00005472 | TIOCGKISS | struct ioctl\_command \* | // I-O |
| 0x00005473 | TIOCSKISS | const struct ioctl\_command \* |
| 0x00005474 | TIOCSCCSTAT | struct scc\_stat \* |

// \<include/linux/scsi.h\>

| | |
| --- | --- |
| 0x00005382 | SCSI\_IOCTL\_GET\_IDLUN struct { int \[2\]; } \* |
| 0x00005383 | SCSI\_IOCTL\_TAGGED\_ENABLE void |
| 0x00005384 | SCSI\_IOCTL\_TAGGED\_DISABLE void |

| | | | |
| --- | --- | --- | --- |
| 0x00005385 | SCSI\_IOCTL\_PROBE\_HOST | const int \* | // MORE |

// \<include/linux/smb\_fs.h\>

| | | |
| --- | --- | --- |
| 0x80027501 | SMB\_IOC\_GETMOUNTUID | uid\_t \* |

// \<include/uapi/linux/sockios.h\> see [**netdevice**(7)](/netdevice/7.md)

| | | | |
| --- | --- | --- | --- |
| 0x0000890B | SIOCADDRT | const struct rtentry \* | // MORE |
| 0x0000890C | SIOCDELRT | const struct rtentry \* | // MORE |
| 0x00008910 | SIOCGIFNAME | char \[\] |
| 0x00008911 | SIOCSIFLINK | void |
| 0x00008912 | SIOCGIFCONF | struct ifconf \* | // MORE // I-O |
| 0x00008913 | SIOCGIFFLAGS | struct ifreq \* | // I-O |
| 0x00008914 | SIOCSIFFLAGS | const struct ifreq \* |
| 0x00008915 | SIOCGIFADDR | struct ifreq \* | // I-O |
| 0x00008916 | SIOCSIFADDR | const struct ifreq \* |
| 0x00008917 | SIOCGIFDSTADDR | struct ifreq \* | // I-O |
| 0x00008918 | SIOCSIFDSTADDR | const struct ifreq \* |
| 0x00008919 | SIOCGIFBRDADDR | struct ifreq \* | // I-O |
| 0x0000891A | SIOCSIFBRDADDR | const struct ifreq \* |
| 0x0000891B | SIOCGIFNETMASK | struct ifreq \* | // I-O |
| 0x0000891C | SIOCSIFNETMASK | const struct ifreq \* |
| 0x0000891D | SIOCGIFMETRIC | struct ifreq \* | // I-O |
| 0x0000891E | SIOCSIFMETRIC | const struct ifreq \* |
| 0x0000891F | SIOCGIFMEM | struct ifreq \* | // I-O |
| 0x00008920 | SIOCSIFMEM | const struct ifreq \* |
| 0x00008921 | SIOCGIFMTU | struct ifreq \* | // I-O |
| 0x00008922 | SIOCSIFMTU | const struct ifreq \* |

| | | | |
| --- | --- | --- | --- |
| 0x00008923 | OLD\_SIOCGIFHWADDR | struct ifreq \* | // I-O |
| 0x00008924 | SIOCSIFHWADDR | const struct ifreq \* | // MORE |
| 0x00008925 | SIOCGIFENCAP | int \* |
| 0x00008926 | SIOCSIFENCAP | const int \* |
| 0x00008927 | SIOCGIFHWADDR | struct ifreq \* | // I-O |
| 0x00008929 | SIOCGIFSLAVE | void |
| 0x00008930 | SIOCSIFSLAVE | void |
| 0x00008931 | SIOCADDMULTI | const struct ifreq \* |
| 0x00008932 | SIOCDELMULTI | const struct ifreq \* |
| 0x00008940 | SIOCADDRTOLD | void |
| 0x00008941 | SIOCDELRTOLD | void |
| 0x00008950 | SIOCDARP | const struct arpreq \* |
| 0x00008951 | SIOCGARP | struct arpreq \* | // I-O |
| 0x00008952 | SIOCSARP | const struct arpreq \* |
| 0x00008960 | SIOCDRARP | const struct arpreq \* |
| 0x00008961 | SIOCGRARP | struct arpreq \* | // I-O |
| 0x00008962 | SIOCSRARP | const struct arpreq \* |
| 0x00008970 | SIOCGIFMAP | struct ifreq \* | // I-O |
| 0x00008971 | SIOCSIFMAP | const struct ifreq \* |

// \<include/linux/soundcard.h\>

| | | |
| --- | --- | --- |
| 0x00005100 | SNDCTL\_SEQ\_RESET | void |
| 0x00005101 | SNDCTL\_SEQ\_SYNC | void |

| | | | |
| --- | --- | --- | --- |
| 0xC08C5102 | SNDCTL\_SYNTH\_INFO | struct synth\_info \* | // I-O |
| 0xC0045103 | SNDCTL\_SEQ\_CTRLRATE | int \* | // I-O |
| 0x80045104 | SNDCTL\_SEQ\_GETOUTCOUNT | int \* |
| 0x80045105 | SNDCTL\_SEQ\_GETINCOUNT | int \* |
| 0x40045106 | SNDCTL\_SEQ\_PERCMODE | void |

| | | |
| --- | --- | --- |
| 0x40285107 | SNDCTL\_FM\_LOAD\_INSTR | const struct sbi\_instrument \* |

| | | | |
| --- | --- | --- | --- |
| 0x40045108 | SNDCTL\_SEQ\_TESTMIDI | const int \* |
| 0x40045109 | SNDCTL\_SEQ\_RESETSAMPLES | const int \* |
| 0x8004510A | SNDCTL\_SEQ\_NRSYNTHS | int \* |
| 0x8004510B | SNDCTL\_SEQ\_NRMIDIS | int \* |
| 0xC074510C | SNDCTL\_MIDI\_INFO | struct midi\_info \* | // I-O |
| 0x4004510D | SNDCTL\_SEQ\_THRESHOLD | const int \* |
| 0xC004510E | SNDCTL\_SYNTH\_MEMAVL | int \* | // I-O |
| 0x4004510F | SNDCTL\_FM\_4OP\_ENABLE | const int \* |
| 0xCFB85110 | SNDCTL\_PMGR\_ACCESS | struct patmgr\_info \* | // I-O |
| 0x00005111 | SNDCTL\_SEQ\_PANIC | void |

| | | |
| --- | --- | --- |
| 0x40085112 | SNDCTL\_SEQ\_OUTOFBAND | const struct seq\_event\_rec \* |

| | | | |
| --- | --- | --- | --- |
| 0xC0045401 | SNDCTL\_TMR\_TIMEBASE | int \* | // I-O |
| 0x00005402 | SNDCTL\_TMR\_START | void |
| 0x00005403 | SNDCTL\_TMR\_STOP | void |
| 0x00005404 | SNDCTL\_TMR\_CONTINUE | void |
| 0xC0045405 | SNDCTL\_TMR\_TEMPO | int \* | // I-O |
| 0xC0045406 | SNDCTL\_TMR\_SOURCE | int \* | // I-O |
| 0x40045407 | SNDCTL\_TMR\_METRONOME | const int \* |
| 0x40045408 | SNDCTL\_TMR\_SELECT | int \* | // I-O |
| 0xCFB85001 | SNDCTL\_PMGR\_IFACE | struct patmgr\_info \* | // I-O |
| 0xC0046D00 | SNDCTL\_MIDI\_PRETIME | int \* | // I-O |
| 0xC0046D01 | SNDCTL\_MIDI\_MPUMODE | const int \* |

| | | | |
| --- | --- | --- | --- |
| 0xC0216D02 | SNDCTL\_MIDI\_MPUCMD | struct mpu\_command\_rec \* | // I-O |

| | | | |
| --- | --- | --- | --- |
| 0x00005000 | SNDCTL\_DSP\_RESET | void |
| 0x00005001 | SNDCTL\_DSP\_SYNC | void |
| 0xC0045002 | SNDCTL\_DSP\_SPEED | int \* | // I-O |
| 0xC0045003 | SNDCTL\_DSP\_STEREO | int \* | // I-O |
| 0xC0045004 | SNDCTL\_DSP\_GETBLKSIZE | int \* | // I-O |
| 0xC0045006 | SOUND\_PCM\_WRITE\_CHANNELS | int \* | // I-O |
| 0xC0045007 | SOUND\_PCM\_WRITE\_FILTER | int \* | // I-O |
| 0x00005008 | SNDCTL\_DSP\_POST | void |
| 0xC0045009 | SNDCTL\_DSP\_SUBDIVIDE | int \* | // I-O |
| 0xC004500A | SNDCTL\_DSP\_SETFRAGMENT | int \* | // I-O |
| 0x8004500B | SNDCTL\_DSP\_GETFMTS | int \* |
| 0xC0045005 | SNDCTL\_DSP\_SETFMT | int \* | // I-O |

| | | |
| --- | --- | --- |
| 0x800C500C | SNDCTL\_DSP\_GETOSPACE | struct audio\_buf\_info \* |
| 0x800C500D | SNDCTL\_DSP\_GETISPACE | struct audio\_buf\_info \* |
| 0x0000500E | SNDCTL\_DSP\_NONBLOCK | void |
| 0x80045002 | SOUND\_PCM\_READ\_RATE | int \* |
| 0x80045006 | SOUND\_PCM\_READ\_CHANNELS | int \* |
| 0x80045005 | SOUND\_PCM\_READ\_BITS | int \* |
| 0x80045007 | SOUND\_PCM\_READ\_FILTER | int \* |
| 0x00004300 | SNDCTL\_COPR\_RESET | void |
| 0xCFB04301 | SNDCTL\_COPR\_LOAD | const struct copr\_buffer \* |

| | | | |
| --- | --- | --- | --- |
| 0xC0144302 | SNDCTL\_COPR\_RDATA | struct copr\_debug\_buf \* | // I-O |
| 0xC0144303 | SNDCTL\_COPR\_RCODE | struct copr\_debug\_buf \* | // I-O |

| | | |
| --- | --- | --- |
| 0x40144304 | SNDCTL\_COPR\_WDATA | const struct copr\_debug\_buf \* |
| 0x40144305 | SNDCTL\_COPR\_WCODE | const struct copr\_debug\_buf \* |

| | | | |
| --- | --- | --- | --- |
| 0xC0144306 | SNDCTL\_COPR\_RUN | struct copr\_debug\_buf \* | // I-O |
| 0xC0144307 | SNDCTL\_COPR\_HALT | struct copr\_debug\_buf \* | // I-O |

| | | |
| --- | --- | --- |
| 0x4FA44308 | SNDCTL\_COPR\_SENDMSG | const struct copr\_msg \* |
| 0x8FA44309 | SNDCTL\_COPR\_RCVMSG | struct copr\_msg \* |
| 0x80044D00 | SOUND\_MIXER\_READ\_VOLUME | int \* |
| 0x80044D01 | SOUND\_MIXER\_READ\_BASS | int \* |
| 0x80044D02 | SOUND\_MIXER\_READ\_TREBLE | int \* |
| 0x80044D03 | SOUND\_MIXER\_READ\_SYNTH | int \* |
| 0x80044D04 | SOUND\_MIXER\_READ\_PCM | int \* |
| 0x80044D05 | SOUND\_MIXER\_READ\_SPEAKER | int \* |
| 0x80044D06 | SOUND\_MIXER\_READ\_LINE | int \* |
| 0x80044D07 | SOUND\_MIXER\_READ\_MIC | int \* |
| 0x80044D08 | SOUND\_MIXER\_READ\_CD | int \* |
| 0x80044D09 | SOUND\_MIXER\_READ\_IMIX | int \* |
| 0x80044D0A | SOUND\_MIXER\_READ\_ALTPCM | int \* |
| 0x80044D0B | SOUND\_MIXER\_READ\_RECLEV | int \* |
| 0x80044D0C | SOUND\_MIXER\_READ\_IGAIN | int \* |
| 0x80044D0D | SOUND\_MIXER\_READ\_OGAIN | int \* |
| 0x80044D0E | SOUND\_MIXER\_READ\_LINE1 | int \* |
| 0x80044D0F | SOUND\_MIXER\_READ\_LINE2 | int \* |
| 0x80044D10 | SOUND\_MIXER\_READ\_LINE3 | int \* |
| 0x80044D1C | SOUND\_MIXER\_READ\_MUTE | int \* |
| 0x80044D1D | SOUND\_MIXER\_READ\_ENHANCE | int \* |
| 0x80044D1E | SOUND\_MIXER\_READ\_LOUD | int \* |
| 0x80044DFF | SOUND\_MIXER\_READ\_RECSRC | int \* |
| 0x80044DFE | SOUND\_MIXER\_READ\_DEVMASK | int \* |
| 0x80044DFD | SOUND\_MIXER\_READ\_RECMASK | int \* |
| 0x80044DFB | SOUND\_MIXER\_READ\_STEREODEVS | int \* |
| 0x80044DFC | SOUND\_MIXER\_READ\_CAPS | int \* |

| | | | |
| --- | --- | --- | --- |
| 0xC0044D00 | SOUND\_MIXER\_WRITE\_VOLUME | int \* | // I-O |
| 0xC0044D01 | SOUND\_MIXER\_WRITE\_BASS | int \* | // I-O |
| 0xC0044D02 | SOUND\_MIXER\_WRITE\_TREBLE | int \* | // I-O |
| 0xC0044D03 | SOUND\_MIXER\_WRITE\_SYNTH | int \* | // I-O |
| 0xC0044D04 | SOUND\_MIXER\_WRITE\_PCM | int \* | // I-O |
| 0xC0044D05 | SOUND\_MIXER\_WRITE\_SPEAKER | int \* | // I-O |
| 0xC0044D06 | SOUND\_MIXER\_WRITE\_LINE | int \* | // I-O |
| 0xC0044D07 | SOUND\_MIXER\_WRITE\_MIC | int \* | // I-O |
| 0xC0044D08 | SOUND\_MIXER\_WRITE\_CD | int \* | // I-O |
| 0xC0044D09 | SOUND\_MIXER\_WRITE\_IMIX | int \* | // I-O |
| 0xC0044D0A | SOUND\_MIXER\_WRITE\_ALTPCM | int \* | // I-O |
| 0xC0044D0B | SOUND\_MIXER\_WRITE\_RECLEV | int \* | // I-O |
| 0xC0044D0C | SOUND\_MIXER\_WRITE\_IGAIN | int \* | // I-O |
| 0xC0044D0D | SOUND\_MIXER\_WRITE\_OGAIN | int \* | // I-O |
| 0xC0044D0E | SOUND\_MIXER\_WRITE\_LINE1 | int \* | // I-O |
| 0xC0044D0F | SOUND\_MIXER\_WRITE\_LINE2 | int \* | // I-O |
| 0xC0044D10 | SOUND\_MIXER\_WRITE\_LINE3 | int \* | // I-O |
| 0xC0044D1C | SOUND\_MIXER\_WRITE\_MUTE | int \* | // I-O |
| 0xC0044D1D | SOUND\_MIXER\_WRITE\_ENHANCE | int \* | // I-O |
| 0xC0044D1E | SOUND\_MIXER\_WRITE\_LOUD | int \* | // I-O |
| 0xC0044DFF | SOUND\_MIXER\_WRITE\_RECSRC | int \* | // I-O |

// \<include/linux/timerfd.h\> see [**timerfd\_create**(2)](/timerfd_create/2.md)

| | | |
| --- | --- | --- |
| 0x40085400 | TFD\_IOC\_SET\_TICKS | uint64\_t \* |

// \<include/linux/umsdos\_fs.h\>

| | | | |
| --- | --- | --- | --- |
| 0x000004D2 | UMSDOS\_READDIR\_DOS | struct umsdos\_ioctl \* | // I-O |
| 0x000004D3 | UMSDOS\_UNLINK\_DOS | const struct umsdos\_ioctl \* |
| 0x000004D4 | UMSDOS\_RMDIR\_DOS | const struct umsdos\_ioctl \* |
| 0x000004D5 | UMSDOS\_STAT\_DOS | struct umsdos\_ioctl \* | // I-O |
| 0x000004D6 | UMSDOS\_CREAT\_EMD | const struct umsdos\_ioctl \* |
| 0x000004D7 | UMSDOS\_UNLINK\_EMD | const struct umsdos\_ioctl \* |
| 0x000004D8 | UMSDOS\_READDIR\_EMD | struct umsdos\_ioctl \* | // I-O |
| 0x000004D9 | UMSDOS\_GETVERSION | struct umsdos\_ioctl \* |
| 0x000004DA | UMSDOS\_INIT\_EMD | void |
| 0x000004DB | UMSDOS\_DOS\_SETUP | const struct umsdos\_ioctl \* |
| 0x000004DC | UMSDOS\_RENAME\_DOS | const struct umsdos\_ioctl \* |

// \<include/linux/vt.h\>

| | | |
| --- | --- | --- |
| 0x00005600 | VT\_OPENQRY | int \* |
| 0x00005601 | VT\_GETMODE | struct vt\_mode \* |
| 0x00005602 | VT\_SETMODE | const struct vt\_mode \* |
| 0x00005603 | VT\_GETSTATE | struct vt\_stat \* |
| 0x00005604 | VT\_SENDSIG | void |
| 0x00005605 | VT\_RELDISP | int |
| 0x00005606 | VT\_ACTIVATE | int |
| 0x00005607 | VT\_WAITACTIVE | int |
| 0x00005608 | VT\_DISALLOCATE | int |
| 0x00005609 | VT\_RESIZE | const struct vt\_sizes \* |
| 0x0000560A | VT\_RESIZEX | const struct vt\_consize \* |

// More arguments. Some ioctl's take a pointer to a structure which contains additional pointers. These are documented here in alphabetical order.

**CDROMREADAUDIO** takes an input pointer *const struct cdrom\_read\_audio \**. The *buf* field points to an output buffer of length *nframes \* CD\_FRAMESIZE\_RAW*.

**CDROMREADCOOKED**, **CDROMREADMODE1**, **CDROMREADMODE2**, and **CDROMREADRAW** take an input pointer *const struct cdrom\_msf \**. They use the same pointer as an output pointer to *char \[\]*. The length varies by request. For **CDROMREADMODE1**, most drivers use CD\_FRAMESIZE, but the Optics Storage driver uses OPT\_BLOCKSIZE instead (both have the numerical value 2048).

```
    CDROMREADCOOKED    char [CD_FRAMESIZE]
    CDROMREADMODE1     char [CD_FRAMESIZE or OPT_BLOCKSIZE]
    CDROMREADMODE2     char [CD_FRAMESIZE_RAW0]
    CDROMREADRAW       char [CD_FRAMESIZE_RAW]
```

**EQL\_ENSLAVE**, **EQL\_EMANCIPATE**, **EQL\_GETSLAVECFG**, **EQL\_SETSLAVECFG**, **EQL\_GETMASTERCFG**, and **EQL\_SETMASTERCFG** take a *struct ifreq \**. The *ifr\_data* field is a pointer to another structure as follows:

```
    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 *
```

**FDRAWCMD** takes a *struct floppy raw\_cmd \**. If *flags & FD\_RAW\_WRITE* is nonzero, then *data* points to an input buffer of length *length*. If *flags & FD\_RAW\_READ* is nonzero, then *data* points to an output buffer of length *length*.

**GIO\_FONTX** and **PIO\_FONTX** take a *struct console\_font\_desc \** or a *const struct console\_font\_desc \**, respectively. *chardata* points to a buffer of *char \[charcount\]*. This is an output buffer for **GIO\_FONTX** and an input buffer for **PIO\_FONTX**.

**GIO\_UNIMAP** and **PIO\_UNIMAP** take a *struct unimapdesc \** or a *const struct unimapdesc \**, respectively. *entries* points to a buffer of *struct unipair \[entry\_ct\]*. This is an output buffer for **GIO\_UNIMAP** and an input buffer for **PIO\_UNIMAP**.

KDADDIO, KDDELIO, KDDISABIO, and KDENABIO enable or disable access to I/O ports. They are essentially alternate interfaces to 'ioperm'.

**KDMAPDISP** and **KDUNMAPDISP** enable or disable memory mappings or I/O port access. They are not implemented in the kernel.

**SCSI\_IOCTL\_PROBE\_HOST** takes an input pointer *const int \**, which is a length. It uses the same pointer as an output pointer to a *char \[\]* buffer of this length.

**SIOCADDRT** and **SIOCDELRT** take an input pointer whose type depends on the protocol:

```
    Most protocols      const struct rtentry *
    AX.25               const struct ax25_route *
    NET/ROM             const struct nr_route_struct *
    INET6               const struct in6_rtmsg *
```

**SIOCGIFCONF** takes a *struct ifconf \**. The *ifc\_buf* field points to a buffer of length *ifc\_len* bytes, into which the kernel writes a list of type *struct ifreq \[\]*.

**SIOCSIFHWADDR** takes an input pointer whose type depends on the protocol:

```
    Most protocols      const struct ifreq *
    AX.25               const char [AX25_ADDR_LEN]
```

**TIOCLINUX** takes a *const char \**. It uses this to distinguish several independent subcases. In the table below, *N + foo* means *foo* after an N-byte pad. *struct selection* is implicitly defined in *drivers/char/selection.c*

```
    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 *
```

// Duplicate ioctls

This list does not include ioctls in the range **SIOCDEVPRIVATE** and **SIOCPROTOPRIVATE**.

| | | |
| --- | --- | --- |
| 0x00000001 | FDSETPRM | FIBMAP |
| 0x00000002 | FDDEFPRM | FIGETBSZ |
| 0x00005382 | CDROMAUDIOBUFSIZ | SCSI\_IOCTL\_GET\_IDLUN |
| 0x00005402 | SNDCTL\_TMR\_START | TCSETS |
| 0x00005403 | SNDCTL\_TMR\_STOP | TCSETSW |
| 0x00005404 | SNDCTL\_TMR\_CONTINUE | TCSETSF |

## SEE ALSO

[**ioctl**(2)](/ioctl/2.md), [**ioctl\_fat**(2)](/ioctl_fat/2.md), [**netdevice**(7)](/netdevice/7.md)

## COLOPHON

This page is part of release 4.16 of the Linux *man-pages* project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.