1IOCTL_LIST(2) Linux Programmer's Manual IOCTL_LIST(2)
2
6 ioctl_list - list of ioctl calls in Linux/i386 kernel
7
9 This is Ioctl List 1.3.27, a list of ioctl calls in Linux/i386 kernel
10 1.3.27. It contains 421 ioctls from </usr/include/{asm,linux}/*.h>.
11 For each ioctl, its numerical value, its name, and its argument type
12 are given.
13 An argument type of const struct foo * means the argument is input to
15 the kernel. struct foo * means the kernel outputs the argument. If
16 the kernel uses the argument for both input and output, this is marked
17 with // I-O.
18 Some ioctls take more arguments or return more values than a single
20 structure. These are marked // MORE and documented further in a sepa‐
21 rate section.
22 This list is very incomplete.
24 ioctl structure
26 Ioctl command values are 32-bit constants. In principle these con‐
27 stants are completely arbitrary, but people have tried to build some
28 structure into them.
29 The old Linux situation was that of mostly 16-bit constants, where the
31 last byte is a serial number, and the preceding byte(s) give a type
32 indicating the driver. Sometimes the major number was used: 0x03 for
33 the HDIO_* ioctls, 0x06 for the LP* ioctls. And sometimes one or more
34 ASCII letters were used. For example, TCGETS has value 0x00005401,
35 with 0x54 = 'T' indicating the terminal driver, and CYGETTIMEOUT has
36 value 0x00435906, with 0x43 0x59 = 'C' 'Y' indicating the cyclades
37 driver.
38 Later (0.98p5) some more information was built into the number. One
40 has 2 direction bits (00: none, 01: write, 10: read, 11: read/write)
41 followed by 14 size bits (giving the size of the argument), followed by
42 an 8-bit type (collecting the ioctls in groups for a common purpose or
43 a common driver), and an 8-bit serial number.
44 The macros describing this structure live in <asm/ioctl.h> and are
46 _IO(type,nr) and {_IOR,_IOW,_IOWR}(type,nr,size). They use
47 sizeof(size) so that size is a misnomer here: this third argument is a
48 data type.
49 Note that the size bits are very unreliable: in lots of cases they are
51 wrong, either because of buggy macros using sizeof(sizeof(struct)), or
52 because of legacy values.
53 Thus, it seems that the new structure only gave disadvantages: it does
55 not help in checking, but it causes varying values for the various
56 architectures.
57
59 Decent ioctls return 0 on success and -1 on error, while any output
60 value is stored via the argument. However, quite a few ioctls in fact
61 return an output value. This is not yet indicated below.
62 // Main table.
64 // <include/asm-i386/socket.h>
66 0x00008901 FIOSETOWN const int *
68 0x00008902 SIOCSPGRP const int *
69 0x00008903 FIOGETOWN int *
70 0x00008904 SIOCGPGRP int *
71 0x00008905 SIOCATMAR int *
72 0x00008906 SIOCGSTAMP timeval *
73 // <include/asm-i386/termios.h>
75 0x00005401 TCGETS struct termios *
77 0x00005402 TCSETS const struct termios *
78 0x00005403 TCSETSW const struct termios *
79 0x00005404 TCSETSF const struct termios *
80 0x00005405 TCGETA struct termio *
81 0x00005406 TCSETA const struct termio *
82 0x00005407 TCSETAW const struct termio *
83 0x00005408 TCSETAF const struct termio *
84 0x00005409 TCSBRK int
85 0x0000540A TCXONC int
86 0x0000540B TCFLSH int
87 0x0000540C TIOCEXCL void
88 0x0000540D TIOCNXCL void
89 0x0000540E TIOCSCTTY int
90 0x0000540F TIOCGPGRP pid_t *
91 0x00005410 TIOCSPGRP const pid_t *
92 0x00005411 TIOCOUTQ int *
93 0x00005412 TIOCSTI const char *
94 0x00005413 TIOCGWINSZ struct winsize *
95 0x00005414 TIOCSWINSZ const struct winsize *
96 0x00005415 TIOCMGET int *
97 0x00005416 TIOCMBIS const int *
98 0x00005417 TIOCMBIC const int *
99 0x00005418 TIOCMSET const int *
100 0x00005419 TIOCGSOFTCAR int *
101 0x0000541A TIOCSSOFTCAR const int *
102 0x0000541B FIONREAD int *
103 0x0000541B TIOCINQ int *
104 0x0000541C TIOCLINUX const char * // MORE
105 0x0000541D TIOCCONS void
106 0x0000541E TIOCGSERIAL struct serial_struct *
107 0x0000541F TIOCSSERIAL const struct serial_struct *
108 0x00005420 TIOCPKT const int *
109 0x00005421 FIONBIO const int *
110 0x00005422 TIOCNOTTY void
111 0x00005423 TIOCSETD const int *
112 0x00005424 TIOCGETD int *
113 0x00005425 TCSBRKP int
114 0x00005426 TIOCTTYGSTRUCT struct tty_struct *
115 0x00005450 FIONCLEX void
116 0x00005451 FIOCLEX void
117 0x00005452 FIOASYNC const int *
118 0x00005453 TIOCSERCONFIG void
119 0x00005454 TIOCSERGWILD int *
120 0x00005455 TIOCSERSWILD const int *
121 0x00005456 TIOCGLCKTRMIOS struct termios *
122 0x00005457 TIOCSLCKTRMIOS const struct termios *
123 0x00005458 TIOCSERGSTRUCT struct async_struct *
124 0x00005459 TIOCSERGETLSR int *
125 0x0000545A TIOCSERGETMULTI struct serial_multiport_struct *
127 0x0000545B TIOCSERSETMULTI const struct serial_multiport_struct *
128 // <include/linux/ax25.h>
130 0x000089E0 SIOCAX25GETUID const struct sockaddr_ax25 *
132 0x000089E1 SIOCAX25ADDUID const struct sockaddr_ax25 *
134 0x000089E2 SIOCAX25DELUID const struct sockaddr_ax25 *
135 0x000089E3 SIOCAX25NOUID const int *
136 0x000089E4 SIOCAX25DIGCTL const int *
137 0x000089E5 SIOCAX25GETPARMS struct ax25_parms_struct * // I-O
138 0x000089E6 SIOCAX25SETPARMS const struct ax25_parms_struct *
140 // <include/linux/cdk.h>
142 0x00007314 STL_BINTR void
144 0x00007315 STL_BSTART void
145 0x00007316 STL_BSTOP void
146 0x00007317 STL_BRESET void
147 // <include/linux/cdrom.h>
149 0x00005301 CDROMPAUSE void
151 0x00005302 CDROMRESUME void
152 0x00005303 CDROMPLAYMSF const struct cdrom_msf *
153 0x00005304 CDROMPLAYTRKIND const struct cdrom_ti *
154 0x00005305 CDROMREADTOCHDR struct cdrom_tochdr *
155 0x00005306 CDROMREADTOCENTRY struct cdrom_tocentry * // I-O
157 0x00005307 CDROMSTOP void
159 0x00005308 CDROMSTART void
160 0x00005309 CDROMEJECT void
161 0x0000530A CDROMVOLCTRL const struct cdrom_volctrl *
162 0x0000530B CDROMSUBCHNL struct cdrom_subchnl * // I-O
163 0x0000530C CDROMREADMODE2 const struct cdrom_msf * // MORE
164 0x0000530D CDROMREADMODE1 const struct cdrom_msf * // MORE
165 0x0000530E CDROMREADAUDIO const struct cdrom_read_audio * // MORE
166 0x0000530F CDROMEJECT_SW int
167 0x00005310 CDROMMULTISESSION struct cdrom_multisession * // I-O
169 0x00005311 CDROM_GET_UPC struct { char [8]; } *
171 0x00005312 CDROMRESET void
172 0x00005313 CDROMVOLREAD struct cdrom_volctrl *
173 0x00005314 CDROMREADRAW const struct cdrom_msf * // MORE
174 0x00005315 CDROMREADCOOKED const struct cdrom_msf * // MORE
175 0x00005316 CDROMSEEK const struct cdrom_msf *
176 // <include/linux/cm206.h>
178 0x00002000 CM206CTL_GET_STAT int
180 0x00002001 CM206CTL_GET_LAST_STAT int
181 // <include/linux/cyclades.h>
183 0x00435901 CYGETMON struct cyclades_monitor *
185 0x00435902 CYGETTHRESH int *
186 0x00435903 CYSETTHRESH int
187 0x00435904 CYGETDEFTHRESH int *
188 0x00435905 CYSETDEFTHRESH int
189 0x00435906 CYGETTIMEOUT int *
190 0x00435907 CYSETTIMEOUT int
191 0x00435908 CYGETDEFTIMEOUT int *
192 0x00435909 CYSETDEFTIMEOUT int
193 // <include/linux/fd.h>
195 0x00000000 FDCLRPRM void
197 0x00000001 FDSETPRM const struct floppy_struct *
198 0x00000002 FDDEFPRM const struct floppy_struct *
200 0x00000003 FDGETPRM struct floppy_struct *
201 0x00000004 FDMSGON void
202 0x00000005 FDMSGOFF void
203 0x00000006 FDFMTBEG void
204 0x00000007 FDFMTTRK const struct format_descr *
205 0x00000008 FDFMTEND void
206 0x0000000A FDSETEMSGTRESH int
207 0x0000000B FDFLUSH void
208 0x0000000C FDSETMAXERRS const struct floppy_max_errors *
209 0x0000000E FDGETMAXERRS struct floppy_max_errors *
210 0x00000010 FDGETDRVTYP struct { char [16]; } *
211 0x00000014 FDSETDRVPRM const struct floppy_drive_params *
212 0x00000015 FDGETDRVPRM struct floppy_drive_params *
213 0x00000016 FDGETDRVSTAT struct floppy_drive_struct *
214 0x00000017 FDPOLLDRVSTAT struct floppy_drive_struct *
215 0x00000018 FDRESET int
216 0x00000019 FDGETFDCSTAT struct floppy_fdc_state *
217 0x0000001B FDWERRORCLR void
218 0x0000001C FDWERRORGET struct floppy_write_errors *
219 0x0000001E FDRAWCMD struct floppy_raw_cmd * // MORE // I-O
221 0x00000028 FDTWADDLE void
222 // <include/linux/fs.h>
224 0x0000125D BLKROSET const int *
226 0x0000125E BLKROGET int *
227 0x0000125F BLKRRPART void
228 0x00001260 BLKGETSIZE unsigned long *
229 0x00001261 BLKFLSBUF void
230 0x00001262 BLKRASET unsigned long
231 0x00001263 BLKRAGET unsigned long *
232 0x00000001 FIBMAP int * // I-O
233 0x00000002 FIGETBSZ int *
234 0x80086601 FS_IOC_GETFLAGS int *
235 0x40086602 FS_IOC_SETFLAGS int *
236 0x80087601 FS_IOC_GETVERSION int *
237 0x40087602 FS_IOC_SETVERSION int *
238 0xC020660B FS_IOC_FIEMAP struct fiemap *
239 0x40086602 FS_IOC32_SETFLAGS int *
240 0x40086602 FS_IOC32_SETFLAGS int *
241 0x80047601 FS_IOC32_GETVERSION int *
242 0x40047602 FS_IOC32_SETVERSION int *
243 // <include/linux/hdreg.h>
245 0x00000301 HDIO_GETGEO struct hd_geometry *
247 0x00000302 HDIO_GET_UNMASKINTR int *
248 0x00000304 HDIO_GET_MULTCOUNT int *
249 0x00000307 HDIO_GET_IDENTITY struct hd_driveid *
250 0x00000308 HDIO_GET_KEEPSETTINGS int *
251 0x00000309 HDIO_GET_CHIPSET int *
252 0x0000030A HDIO_GET_NOWERR int *
253 0x0000030B HDIO_GET_DMA int *
254 0x0000031F HDIO_DRIVE_CMD int * // I-O
255 0x00000321 HDIO_SET_MULTCOUNT int
256 0x00000322 HDIO_SET_UNMASKINTR int
257 0x00000323 HDIO_SET_KEEPSETTINGS int
258 0x00000324 HDIO_SET_CHIPSET int
259 0x00000325 HDIO_SET_NOWERR int
260 0x00000326 HDIO_SET_DMA int
261 // <include/linux/if_eql.h>
263 0x000089F0 EQL_ENSLAVE struct ifreq * // MORE // I-O
266 0x000089F1 EQL_EMANCIPATE struct ifreq * // MORE // I-O
267 0x000089F2 EQL_GETSLAVECFG struct ifreq * // MORE // I-O
268 0x000089F3 EQL_SETSLAVECFG struct ifreq * // MORE // I-O
269 0x000089F4 EQL_GETMASTRCFG struct ifreq * // MORE // I-O
270 0x000089F5 EQL_SETMASTRCFG struct ifreq * // MORE // I-O
271 // <include/linux/if_plip.h>
273 0x000089F0 SIOCDEVPLIP struct ifreq * // I-O
275 // <include/linux/if_ppp.h>
277 0x00005490 PPPIOCGFLAGS int *
279 0x00005491 PPPIOCSFLAGS const int *
280 0x00005492 PPPIOCGASYNCMAP int *
281 0x00005493 PPPIOCSASYNCMAP const int *
282 0x00005494 PPPIOCGUNIT int *
283 0x00005495 PPPIOCSINPSIG const int *
284 0x00005497 PPPIOCSDEBUG const int *
285 0x00005498 PPPIOCGDEBUG int *
286 0x00005499 PPPIOCGSTAT struct ppp_stats *
287 0x0000549A PPPIOCGTIME struct ppp_ddinfo *
288 0x0000549B PPPIOCGXASYNCMAP struct { int [8]; } *
289 0x0000549C PPPIOCSXASYNCMAP const struct { int [8]; } *
290 0x0000549D PPPIOCSMRU const int *
291 0x0000549E PPPIOCRASYNCMAP const int *
292 0x0000549F PPPIOCSMAXCID const int *
293 // <include/linux/ipx.h>
295 0x000089E0 SIOCAIPXITFCRT const char *
297 0x000089E1 SIOCAIPXPRISLT const char *
298 0x000089E2 SIOCIPXCFGDATA struct ipx_config_data *
299 // <include/linux/kd.h>
301 0x00004B60 GIO_FONT struct { char [8192]; } *
303 0x00004B61 PIO_FONT const struct { char [8192]; } *
304 0x00004B6B GIO_FONTX struct console_font_desc * // MORE // I-O
306 0x00004B6C PIO_FONTX const struct console_font_desc * //MORE
307 0x00004B70 GIO_CMAP struct { char [48]; } *
309 0x00004B71 PIO_CMAP const struct { char [48]; }
310 0x00004B2F KIOCSOUND int
312 0x00004B30 KDMKTONE int
313 0x00004B31 KDGETLED char *
314 0x00004B32 KDSETLED int
315 0x00004B33 KDGKBTYPE char *
316 0x00004B34 KDADDIO int // MORE
317 0x00004B35 KDDELIO int // MORE
318 0x00004B36 KDENABIO void // MORE
319 0x00004B37 KDDISABIO void // MORE
320 0x00004B3A KDSETMODE int
321 0x00004B3B KDGETMODE int *
322 0x00004B3C KDMAPDISP void // MORE
323 0x00004B3D KDUNMAPDISP void // MORE
324 0x00004B40 GIO_SCRNMAP struct { char [E_TABSZ]; } *
325 0x00004B41 PIO_SCRNMAP const struct { char [E_TABSZ]; } *
327 0x00004B69 GIO_UNISCRNMAP struct { short [E_TABSZ]; } *
328 0x00004B6A PIO_UNISCRNMAP const struct { short [E_TABSZ]; } *
329 0x00004B66 GIO_UNIMAP struct unimapdesc * // MORE // I-O
332 0x00004B67 PIO_UNIMAP const struct unimapdesc * // MORE
333 0x00004B68 PIO_UNIMAPCLR const struct unimapinit *
334 0x00004B44 KDGKBMODE int *
335 0x00004B45 KDSKBMODE int
336 0x00004B62 KDGKBMETA int *
337 0x00004B63 KDSKBMETA int
338 0x00004B64 KDGKBLED int *
339 0x00004B65 KDSKBLED int
340 0x00004B46 KDGKBENT struct kbentry * // I-O
341 0x00004B47 KDSKBENT const struct kbentry *
342 0x00004B48 KDGKBSENT struct kbsentry * // I-O
343 0x00004B49 KDSKBSENT const struct kbsentry *
344 0x00004B4A KDGKBDIACR struct kbdiacrs *
345 0x00004B4B KDSKBDIACR const struct kbdiacrs *
346 0x00004B4C KDGETKEYCODE struct kbkeycode * // I-O
347 0x00004B4D KDSETKEYCODE const struct kbkeycode *
348 0x00004B4E KDSIGACCEPT int
349 // <include/linux/lp.h>
351 0x00000601 LPCHAR int
353 0x00000602 LPTIME int
354 0x00000604 LPABORT int
355 0x00000605 LPSETIRQ int
356 0x00000606 LPGETIRQ int *
357 0x00000608 LPWAIT int
358 0x00000609 LPCAREFUL int
359 0x0000060A LPABORTOPEN int
360 0x0000060B LPGETSTATUS int *
361 0x0000060C LPRESET void
362 0x0000060D LPGETSTATS struct lp_stats *
363 // <include/linux/mroute.h>
365 0x000089E0 SIOCGETVIFCNT struct sioc_vif_req * // I-O
367 0x000089E1 SIOCGETSGCNT struct sioc_sg_req * // I-O
368 // <include/linux/msdos_fs.h> see ioctl_fat(2)
370 0x82307201 VFAT_IOCTL_READDIR_BOTH struct dirent [2]
372 0x82307202 VFAT_IOCTL_READDIR_SHORT struct dirent [2]
373 0x80047210 FAT_IOCTL_GET_ATTRIBUTES __u32 *
374 0x40047211 FAT_IOCTL_SET_ATTRIBUTES const __u32 *
375 0x80047213 FAT_IOCTL_GET_VOLUME_ID __u32 *
376 // <include/linux/mtio.h>
378 0x40086D01 MTIOCTOP const struct mtop *
380 0x801C6D02 MTIOCGET struct mtget *
381 0x80046D03 MTIOCPOS struct mtpos *
382 0x80206D04 MTIOCGETCONFIG struct mtconfiginfo *
383 0x40206D05 MTIOCSETCONFIG const struct mtconfiginfo *
384 // <include/linux/netrom.h>
386 0x000089E0 SIOCNRGETPARMS struct nr_parms_struct * // I-O
388 0x000089E1 SIOCNRSETPARMS const struct nr_parms_struct *
389 0x000089E2 SIOCNRDECOBS void
390 0x000089E3 SIOCNRRTCTL const int *
391 // <include/uapi/linux/wireless.h>
393 // This API is deprecated.
394 // It is being replaced by nl80211 and cfg80211. See
395 // https://wireless.wiki.kernel.org/en/developers/documentation/nl80211
396 x00008b00 SIOCSIWCOMMIT struct iwreq *
398 x00008b01 SIOCGIWNAME struct iwreq *
399 x00008b02 SIOCSIWNWID struct iwreq *
400 x00008b03 SIOCGIWNWID struct iwreq *
401 x00008b04 SIOCSIWFREQ struct iwreq *
402 x00008b05 SIOCGIWFREQ struct iwreq *
403 x00008b06 SIOCSIWMODE struct iwreq *
404 x00008b07 SIOCGIWMODE struct iwreq *
405 x00008b08 SIOCSIWSENS struct iwreq *
406 x00008b09 SIOCGIWSENS struct iwreq *
407 x00008b0a SIOCSIWRANGE struct iwreq *
408 x00008b0b SIOCGIWRANGE struct iwreq *
409 x00008b0c SIOCSIWPRIV struct iwreq *
410 x00008b0d SIOCGIWPRIV struct iwreq *
411 x00008b0e SIOCSIWSTATS struct iwreq *
412 x00008b0f SIOCGIWSTATS struct iwreq *
413 x00008b10 SIOCSIWSPY struct iwreq *
414 x00008b11 SIOCGIWSPY struct iwreq *
415 x00008b12 SIOCSIWTHRSPY struct iwreq *
416 x00008b13 SIOCGIWTHRSPY struct iwreq *
417 x00008b14 SIOCSIWAP struct iwreq *
418 x00008b15 SIOCGIWAP struct iwreq *
419 x00008b17 SIOCGIWAPLIST struct iwreq *
420 x00008b18 SIOCSIWSCAN struct iwreq *
421 x00008b19 SIOCGIWSCAN struct iwreq *
422 x00008b1a SIOCSIWESSID struct iwreq *
423 x00008b1b SIOCGIWESSID struct iwreq *
424 x00008b1c SIOCSIWNICKN struct iwreq *
425 x00008b1d SIOCGIWNICKN struct iwreq *
426 x00008b20 SIOCSIWRATE struct iwreq *
427 x00008b21 SIOCGIWRATE struct iwreq *
428 x00008b22 SIOCSIWRTS struct iwreq *
429 x00008b23 SIOCGIWRTS struct iwreq *
430 x00008b24 SIOCSIWFRAG struct iwreq *
431 x00008b25 SIOCGIWFRAG struct iwreq *
432 x00008b26 SIOCSIWTXPOW struct iwreq *
433 x00008b27 SIOCGIWTXPOW struct iwreq *
434 x00008b28 SIOCSIWRETRY struct iwreq *
435 x00008b29 SIOCGIWRETRY struct iwreq *
436 x00008b2a SIOCSIWENCODE struct iwreq *
437 x00008b2b SIOCGIWENCODE struct iwreq *
438 x00008b2c SIOCSIWPOWER struct iwreq *
439 x00008b2d SIOCGIWPOWER struct iwreq *
440 x00008b30 SIOCSIWGENIE struct iwreq *
441 x00008b31 SIOCGIWGENIE struct iwreq *
442 x00008b16 SIOCSIWMLME struct iwreq *
443 x00008b32 SIOCSIWAUTH struct iwreq *
444 x00008b33 SIOCGIWAUTH struct iwreq *
445 x00008b34 SIOCSIWENCODEEXT struct iwreq *
446 x00008b35 SIOCGIWENCODEEXT struct iwreq *
447 x00008b36 SIOCSIWPMKSA struct iwreq *
448 // <include/linux/sbpcd.h>
450 0x00009000 DDIOCSDBG const int *
452 0x00005382 CDROMAUDIOBUFSIZ int
453 // <include/linux/scc.h>
455 0x00005470 TIOCSCCINI void
457 0x00005471 TIOCCHANINI const struct scc_modem *
458 0x00005472 TIOCGKISS struct ioctl_command * // I-O
459 0x00005473 TIOCSKISS const struct ioctl_command *
460 0x00005474 TIOCSCCSTAT struct scc_stat *
461 // <include/linux/scsi.h>
463 0x00005382 SCSI_IOCTL_GET_IDLUN struct { int [2]; } *
465 0x00005383 SCSI_IOCTL_TAGGED_ENABLE void
466 0x00005384 SCSI_IOCTL_TAGGED_DISABLE void
467 0x00005385 SCSI_IOCTL_PROBE_HOST const int * // MORE
469 // <include/linux/smb_fs.h>
471 0x80027501 SMB_IOC_GETMOUNTUID uid_t *
473 // <include/uapi/linux/sockios.h> see netdevice(7)
475 0x0000890B SIOCADDRT const struct rtentry * // MORE
477 0x0000890C SIOCDELRT const struct rtentry * // MORE
478 0x00008910 SIOCGIFNAME char []
479 0x00008911 SIOCSIFLINK void
480 0x00008912 SIOCGIFCONF struct ifconf * // MORE // I-O
481 0x00008913 SIOCGIFFLAGS struct ifreq * // I-O
482 0x00008914 SIOCSIFFLAGS const struct ifreq *
483 0x00008915 SIOCGIFADDR struct ifreq * // I-O
484 0x00008916 SIOCSIFADDR const struct ifreq *
485 0x00008917 SIOCGIFDSTADDR struct ifreq * // I-O
486 0x00008918 SIOCSIFDSTADDR const struct ifreq *
487 0x00008919 SIOCGIFBRDADDR struct ifreq * // I-O
488 0x0000891A SIOCSIFBRDADDR const struct ifreq *
489 0x0000891B SIOCGIFNETMASK struct ifreq * // I-O
490 0x0000891C SIOCSIFNETMASK const struct ifreq *
491 0x0000891D SIOCGIFMETRIC struct ifreq * // I-O
492 0x0000891E SIOCSIFMETRIC const struct ifreq *
493 0x0000891F SIOCGIFMEM struct ifreq * // I-O
494 0x00008920 SIOCSIFMEM const struct ifreq *
495 0x00008921 SIOCGIFMTU struct ifreq * // I-O
496 0x00008922 SIOCSIFMTU const struct ifreq *
497 0x00008923 OLD_SIOCGIFHWADDR struct ifreq * // I-O
499 0x00008924 SIOCSIFHWADDR const struct ifreq * // MORE
500 0x00008925 SIOCGIFENCAP int *
501 0x00008926 SIOCSIFENCAP const int *
502 0x00008927 SIOCGIFHWADDR struct ifreq * // I-O
503 0x00008929 SIOCGIFSLAVE void
504 0x00008930 SIOCSIFSLAVE void
505 0x00008931 SIOCADDMULTI const struct ifreq *
506 0x00008932 SIOCDELMULTI const struct ifreq *
507 0x00008940 SIOCADDRTOLD void
508 0x00008941 SIOCDELRTOLD void
509 0x00008950 SIOCDARP const struct arpreq *
510 0x00008951 SIOCGARP struct arpreq * // I-O
511 0x00008952 SIOCSARP const struct arpreq *
512 0x00008960 SIOCDRARP const struct arpreq *
513 0x00008961 SIOCGRARP struct arpreq * // I-O
514 0x00008962 SIOCSRARP const struct arpreq *
515 0x00008970 SIOCGIFMAP struct ifreq * // I-O
516 0x00008971 SIOCSIFMAP const struct ifreq *
517 // <include/linux/soundcard.h>
519 0x00005100 SNDCTL_SEQ_RESET void
521 0x00005101 SNDCTL_SEQ_SYNC void
522 0xC08C5102 SNDCTL_SYNTH_INFO struct synth_info * // I-O
524 0xC0045103 SNDCTL_SEQ_CTRLRATE int * // I-O
525 0x80045104 SNDCTL_SEQ_GETOUTCOUNT int *
526 0x80045105 SNDCTL_SEQ_GETINCOUNT int *
527 0x40045106 SNDCTL_SEQ_PERCMODE void
528 0x40285107 SNDCTL_FM_LOAD_INSTR const struct sbi_instrument *
530 0x40045108 SNDCTL_SEQ_TESTMIDI const int *
532 0x40045109 SNDCTL_SEQ_RESETSAMPLES const int *
533 0x8004510A SNDCTL_SEQ_NRSYNTHS int *
534 0x8004510B SNDCTL_SEQ_NRMIDIS int *
535 0xC074510C SNDCTL_MIDI_INFO struct midi_info * // I-O
536 0x4004510D SNDCTL_SEQ_THRESHOLD const int *
537 0xC004510E SNDCTL_SYNTH_MEMAVL int * // I-O
538 0x4004510F SNDCTL_FM_4OP_ENABLE const int *
539 0xCFB85110 SNDCTL_PMGR_ACCESS struct patmgr_info * // I-O
540 0x00005111 SNDCTL_SEQ_PANIC void
541 0x40085112 SNDCTL_SEQ_OUTOFBAND const struct seq_event_rec *
543 0xC0045401 SNDCTL_TMR_TIMEBASE int * // I-O
545 0x00005402 SNDCTL_TMR_START void
546 0x00005403 SNDCTL_TMR_STOP void
547 0x00005404 SNDCTL_TMR_CONTINUE void
548 0xC0045405 SNDCTL_TMR_TEMPO int * // I-O
549 0xC0045406 SNDCTL_TMR_SOURCE int * // I-O
550 0x40045407 SNDCTL_TMR_METRONOME const int *
551 0x40045408 SNDCTL_TMR_SELECT int * // I-O
552 0xCFB85001 SNDCTL_PMGR_IFACE struct patmgr_info * // I-O
553 0xC0046D00 SNDCTL_MIDI_PRETIME int * // I-O
554 0xC0046D01 SNDCTL_MIDI_MPUMODE const int *
555 0xC0216D02 SNDCTL_MIDI_MPUCMD struct mpu_command_rec * // I-O
557 0x00005000 SNDCTL_DSP_RESET void
559 0x00005001 SNDCTL_DSP_SYNC void
560 0xC0045002 SNDCTL_DSP_SPEED int * // I-O
561 0xC0045003 SNDCTL_DSP_STEREO int * // I-O
562 0xC0045004 SNDCTL_DSP_GETBLKSIZE int * // I-O
563 0xC0045006 SOUND_PCM_WRITE_CHANNELS int * // I-O
564 0xC0045007 SOUND_PCM_WRITE_FILTER int * // I-O
565 0x00005008 SNDCTL_DSP_POST void
566 0xC0045009 SNDCTL_DSP_SUBDIVIDE int * // I-O
567 0xC004500A SNDCTL_DSP_SETFRAGMENT int * // I-O
568 0x8004500B SNDCTL_DSP_GETFMTS int *
569 0xC0045005 SNDCTL_DSP_SETFMT int * // I-O
570 0x800C500C SNDCTL_DSP_GETOSPACE struct audio_buf_info *
572 0x800C500D SNDCTL_DSP_GETISPACE struct audio_buf_info *
573 0x0000500E SNDCTL_DSP_NONBLOCK void
574 0x80045002 SOUND_PCM_READ_RATE int *
575 0x80045006 SOUND_PCM_READ_CHANNELS int *
576 0x80045005 SOUND_PCM_READ_BITS int *
577 0x80045007 SOUND_PCM_READ_FILTER int *
578 0x00004300 SNDCTL_COPR_RESET void
579 0xCFB04301 SNDCTL_COPR_LOAD const struct copr_buffer *
580 0xC0144302 SNDCTL_COPR_RDATA struct copr_debug_buf * // I-O
582 0xC0144303 SNDCTL_COPR_RCODE struct copr_debug_buf * // I-O
583 0x40144304 SNDCTL_COPR_WDATA const struct copr_debug_buf *
585 0x40144305 SNDCTL_COPR_WCODE const struct copr_debug_buf *
586 0xC0144306 SNDCTL_COPR_RUN struct copr_debug_buf * // I-O
588 0xC0144307 SNDCTL_COPR_HALT struct copr_debug_buf * // I-O
589 0x4FA44308 SNDCTL_COPR_SENDMSG const struct copr_msg *
591 0x8FA44309 SNDCTL_COPR_RCVMSG struct copr_msg *
592 0x80044D00 SOUND_MIXER_READ_VOLUME int *
593 0x80044D01 SOUND_MIXER_READ_BASS int *
594 0x80044D02 SOUND_MIXER_READ_TREBLE int *
596 0x80044D03 SOUND_MIXER_READ_SYNTH int *
597 0x80044D04 SOUND_MIXER_READ_PCM int *
598 0x80044D05 SOUND_MIXER_READ_SPEAKER int *
599 0x80044D06 SOUND_MIXER_READ_LINE int *
600 0x80044D07 SOUND_MIXER_READ_MIC int *
601 0x80044D08 SOUND_MIXER_READ_CD int *
602 0x80044D09 SOUND_MIXER_READ_IMIX int *
603 0x80044D0A SOUND_MIXER_READ_ALTPCM int *
604 0x80044D0B SOUND_MIXER_READ_RECLEV int *
605 0x80044D0C SOUND_MIXER_READ_IGAIN int *
606 0x80044D0D SOUND_MIXER_READ_OGAIN int *
607 0x80044D0E SOUND_MIXER_READ_LINE1 int *
608 0x80044D0F SOUND_MIXER_READ_LINE2 int *
609 0x80044D10 SOUND_MIXER_READ_LINE3 int *
610 0x80044D1C SOUND_MIXER_READ_MUTE int *
611 0x80044D1D SOUND_MIXER_READ_ENHANCE int *
612 0x80044D1E SOUND_MIXER_READ_LOUD int *
613 0x80044DFF SOUND_MIXER_READ_RECSRC int *
614 0x80044DFE SOUND_MIXER_READ_DEVMASK int *
615 0x80044DFD SOUND_MIXER_READ_RECMASK int *
616 0x80044DFB SOUND_MIXER_READ_STEREODEVS int *
617 0x80044DFC SOUND_MIXER_READ_CAPS int *
618 0xC0044D00 SOUND_MIXER_WRITE_VOLUME int * // I-O
620 0xC0044D01 SOUND_MIXER_WRITE_BASS int * // I-O
621 0xC0044D02 SOUND_MIXER_WRITE_TREBLE int * // I-O
622 0xC0044D03 SOUND_MIXER_WRITE_SYNTH int * // I-O
623 0xC0044D04 SOUND_MIXER_WRITE_PCM int * // I-O
624 0xC0044D05 SOUND_MIXER_WRITE_SPEAKER int * // I-O
625 0xC0044D06 SOUND_MIXER_WRITE_LINE int * // I-O
626 0xC0044D07 SOUND_MIXER_WRITE_MIC int * // I-O
627 0xC0044D08 SOUND_MIXER_WRITE_CD int * // I-O
628 0xC0044D09 SOUND_MIXER_WRITE_IMIX int * // I-O
629 0xC0044D0A SOUND_MIXER_WRITE_ALTPCM int * // I-O
630 0xC0044D0B SOUND_MIXER_WRITE_RECLEV int * // I-O
631 0xC0044D0C SOUND_MIXER_WRITE_IGAIN int * // I-O
632 0xC0044D0D SOUND_MIXER_WRITE_OGAIN int * // I-O
633 0xC0044D0E SOUND_MIXER_WRITE_LINE1 int * // I-O
634 0xC0044D0F SOUND_MIXER_WRITE_LINE2 int * // I-O
635 0xC0044D10 SOUND_MIXER_WRITE_LINE3 int * // I-O
636 0xC0044D1C SOUND_MIXER_WRITE_MUTE int * // I-O
637 0xC0044D1D SOUND_MIXER_WRITE_ENHANCE int * // I-O
638 0xC0044D1E SOUND_MIXER_WRITE_LOUD int * // I-O
639 0xC0044DFF SOUND_MIXER_WRITE_RECSRC int * // I-O
640 // <include/linux/timerfd.h> see timerfd_create(2)
642 0x40085400 TFD_IOC_SET_TICKS uint64_t *
644 // <include/linux/umsdos_fs.h>
646 0x000004D2 UMSDOS_READDIR_DOS struct umsdos_ioctl * // I-O
648 0x000004D3 UMSDOS_UNLINK_DOS const struct umsdos_ioctl *
649 0x000004D4 UMSDOS_RMDIR_DOS const struct umsdos_ioctl *
650 0x000004D5 UMSDOS_STAT_DOS struct umsdos_ioctl * // I-O
651 0x000004D6 UMSDOS_CREAT_EMD const struct umsdos_ioctl *
652 0x000004D7 UMSDOS_UNLINK_EMD const struct umsdos_ioctl *
653 0x000004D8 UMSDOS_READDIR_EMD struct umsdos_ioctl * // I-O
654 0x000004D9 UMSDOS_GETVERSION struct umsdos_ioctl *
655 0x000004DA UMSDOS_INIT_EMD void
656 0x000004DB UMSDOS_DOS_SETUP const struct umsdos_ioctl *
657 0x000004DC UMSDOS_RENAME_DOS const struct umsdos_ioctl *
658 // <include/linux/vt.h>
660 0x00005600 VT_OPENQRY int *
662 0x00005601 VT_GETMODE struct vt_mode *
663 0x00005602 VT_SETMODE const struct vt_mode *
664 0x00005603 VT_GETSTATE struct vt_stat *
665 0x00005604 VT_SENDSIG void
666 0x00005605 VT_RELDISP int
667 0x00005606 VT_ACTIVATE int
668 0x00005607 VT_WAITACTIVE int
669 0x00005608 VT_DISALLOCATE int
670 0x00005609 VT_RESIZE const struct vt_sizes *
671 0x0000560A VT_RESIZEX const struct vt_consize *
672 // More arguments. Some ioctl's take a pointer to a structure which
674 contains additional pointers. These are documented here in alphabeti‐
675 cal order.
676 CDROMREADAUDIO takes an input pointer const struct cdrom_read_audio *.
678 The buf field points to an output buffer of length nframes * CD_FRAME‐
679 SIZE_RAW.
680 CDROMREADCOOKED, CDROMREADMODE1, CDROMREADMODE2, and CDROMREADRAW take
682 an input pointer const struct cdrom_msf *. They use the same pointer
683 as an output pointer to char []. The length varies by request. For
684 CDROMREADMODE1, most drivers use CD_FRAMESIZE, but the Optics Storage
685 driver uses OPT_BLOCKSIZE instead (both have the numerical value 2048).
686 CDROMREADCOOKED char [CD_FRAMESIZE]
688 CDROMREADMODE1 char [CD_FRAMESIZE or OPT_BLOCKSIZE]
689 CDROMREADMODE2 char [CD_FRAMESIZE_RAW0]
690 CDROMREADRAW char [CD_FRAMESIZE_RAW]
691 EQL_ENSLAVE, EQL_EMANCIPATE, EQL_GETSLAVECFG, EQL_SETSLAVECFG, EQL_GET‐
693 MASTERCFG, and EQL_SETMASTERCFG take a struct ifreq *. The ifr_data
694 field is a pointer to another structure as follows:
695 EQL_ENSLAVE const struct slaving_request *
697 EQL_EMANCIPATE const struct slaving_request *
698 EQL_GETSLAVECFG struct slave_config * // I-O
699 EQL_SETSLAVECFG const struct slave_config *
700 EQL_GETMASTERCFG struct master_config *
701 EQL_SETMASTERCFG const struct master_config *
702 FDRAWCMD takes a struct floppy raw_cmd *. If flags & FD_RAW_WRITE is
704 nonzero, then data points to an input buffer of length length. If
705 flags & FD_RAW_READ is nonzero, then data points to an output buffer of
706 length length.
707 GIO_FONTX and PIO_FONTX take a struct console_font_desc * or a const
709 struct console_font_desc *, respectively. chardata points to a buffer
710 of char [charcount]. This is an output buffer for GIO_FONTX and an
711 input buffer for PIO_FONTX.
712 GIO_UNIMAP and PIO_UNIMAP take a struct unimapdesc * or a const struct
714 unimapdesc *, respectively. entries points to a buffer of struct uni‐
715 pair [entry_ct]. This is an output buffer for GIO_UNIMAP and an input
716 buffer for PIO_UNIMAP.
717 KDADDIO, KDDELIO, KDDISABIO, and KDENABIO enable or disable access to
719 I/O ports. They are essentially alternate interfaces to 'ioperm'.
720 KDMAPDISP and KDUNMAPDISP enable or disable memory mappings or I/O port
722 access. They are not implemented in the kernel.
723 SCSI_IOCTL_PROBE_HOST takes an input pointer const int *, which is a
725 length. It uses the same pointer as an output pointer to a char []
726 buffer of this length.
727 SIOCADDRT and SIOCDELRT take an input pointer whose type depends on the
729 protocol:
730 Most protocols const struct rtentry *
732 AX.25 const struct ax25_route *
733 NET/ROM const struct nr_route_struct *
734 INET6 const struct in6_rtmsg *
735 SIOCGIFCONF takes a struct ifconf *. The ifc_buf field points to a
737 buffer of length ifc_len bytes, into which the kernel writes a list of
738 type struct ifreq [].
739 SIOCSIFHWADDR takes an input pointer whose type depends on the proto‐
741 col:
742 Most protocols const struct ifreq *
744 AX.25 const char [AX25_ADDR_LEN]
745 TIOCLINUX takes a const char *. It uses this to distinguish several
747 independent subcases. In the table below, N + foo means foo after an
748 N-byte pad. struct selection is implicitly defined in driv‐
749 ers/char/selection.c
750 TIOCLINUX-2 1 + const struct selection *
752 TIOCLINUX-3 void
753 TIOCLINUX-4 void
754 TIOCLINUX-5 4 + const struct { long [8]; } *
755 TIOCLINUX-6 char *
756 TIOCLINUX-7 char *
757 TIOCLINUX-10 1 + const char *
758 // Duplicate ioctls
760 This list does not include ioctls in the range SIOCDEVPRIVATE and
762 SIOCPROTOPRIVATE.
763 0x00000001 FDSETPRM FIBMAP
765 0x00000002 FDDEFPRM FIGETBSZ
766 0x00005382 CDROMAUDIOBUFSIZ SCSI_IOCTL_GET_IDLUN
767 0x00005402 SNDCTL_TMR_START TCSETS
768 0x00005403 SNDCTL_TMR_STOP TCSETSW
769 0x00005404 SNDCTL_TMR_CONTINUE TCSETSF
770
772 ioctl(2), ioctl_fat(2), netdevice(7)
773
775 This page is part of release 4.16 of the Linux man-pages project. A
776 description of the project, information about reporting bugs, and the
777 latest version of this page, can be found at
778 https://www.kernel.org/doc/man-pages/.
779Linux 2017-09-15 IOCTL_LIST(2)