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 *
126 0x0000545B TIOCSERSETMULTI const struct serial_multiport_struct *
127 // <include/linux/ax25.h>
129 0x000089E0 SIOCAX25GETUID const struct sockaddr_ax25 *
131 0x000089E1 SIOCAX25ADDUID const struct sockaddr_ax25 *
132 0x000089E2 SIOCAX25DELUID const struct sockaddr_ax25 *
134 0x000089E3 SIOCAX25NOUID const int *
135 0x000089E4 SIOCAX25DIGCTL const int *
136 0x000089E5 SIOCAX25GETPARMS struct ax25_parms_struct * // I-O
137 0x000089E6 SIOCAX25SETPARMS const struct ax25_parms_struct *
138 // <include/linux/cdk.h>
140 0x00007314 STL_BINTR void
142 0x00007315 STL_BSTART void
143 0x00007316 STL_BSTOP void
144 0x00007317 STL_BRESET void
145 // <include/linux/cdrom.h>
147 0x00005301 CDROMPAUSE void
149 0x00005302 CDROMRESUME void
150 0x00005303 CDROMPLAYMSF const struct cdrom_msf *
151 0x00005304 CDROMPLAYTRKIND const struct cdrom_ti *
152 0x00005305 CDROMREADTOCHDR struct cdrom_tochdr *
153 0x00005306 CDROMREADTOCENTRY struct cdrom_tocentry * // I-O
154 0x00005307 CDROMSTOP void
155 0x00005308 CDROMSTART void
156 0x00005309 CDROMEJECT void
157 0x0000530A CDROMVOLCTRL const struct cdrom_volctrl *
158 0x0000530B CDROMSUBCHNL struct cdrom_subchnl * // I-O
159 0x0000530C CDROMREADMODE2 const struct cdrom_msf * // MORE
160 0x0000530D CDROMREADMODE1 const struct cdrom_msf * // MORE
161 0x0000530E CDROMREADAUDIO const struct cdrom_read_audio * // MORE
162 0x0000530F CDROMEJECT_SW int
163 0x00005310 CDROMMULTISESSION struct cdrom_multisession * // I-O
164 0x00005311 CDROM_GET_UPC struct { char [8]; } *
165 0x00005312 CDROMRESET void
166 0x00005313 CDROMVOLREAD struct cdrom_volctrl *
167 0x00005314 CDROMREADRAW const struct cdrom_msf * // MORE
168 0x00005315 CDROMREADCOOKED const struct cdrom_msf * // MORE
169 0x00005316 CDROMSEEK const struct cdrom_msf *
170 // <include/linux/cm206.h>
172 0x00002000 CM206CTL_GET_STAT int
174 0x00002001 CM206CTL_GET_LAST_STAT int
175 // <include/linux/cyclades.h>
177 0x00435901 CYGETMON struct cyclades_monitor *
179 0x00435902 CYGETTHRESH int *
180 0x00435903 CYSETTHRESH int
181 0x00435904 CYGETDEFTHRESH int *
182 0x00435905 CYSETDEFTHRESH int
183 0x00435906 CYGETTIMEOUT int *
184 0x00435907 CYSETTIMEOUT int
185 0x00435908 CYGETDEFTIMEOUT int *
186 0x00435909 CYSETDEFTIMEOUT int
187 // <include/linux/ext2_fs.h>
189 0x80046601 EXT2_IOC_GETFLAGS int *
191 0x40046602 EXT2_IOC_SETFLAGS const int *
192 0x80047601 EXT2_IOC_GETVERSION int *
193 0x40047602 EXT2_IOC_SETVERSION const int *
194 // <include/linux/fd.h>
196 0x00000000 FDCLRPRM void
198 0x00000001 FDSETPRM const struct floppy_struct *
200 0x00000002 FDDEFPRM const struct floppy_struct *
201 0x00000003 FDGETPRM struct floppy_struct *
202 0x00000004 FDMSGON void
203 0x00000005 FDMSGOFF void
204 0x00000006 FDFMTBEG void
205 0x00000007 FDFMTTRK const struct format_descr *
206 0x00000008 FDFMTEND void
207 0x0000000A FDSETEMSGTRESH int
208 0x0000000B FDFLUSH void
209 0x0000000C FDSETMAXERRS const struct floppy_max_errors *
210 0x0000000E FDGETMAXERRS struct floppy_max_errors *
211 0x00000010 FDGETDRVTYP struct { char [16]; } *
212 0x00000014 FDSETDRVPRM const struct floppy_drive_params *
213 0x00000015 FDGETDRVPRM struct floppy_drive_params *
214 0x00000016 FDGETDRVSTAT struct floppy_drive_struct *
215 0x00000017 FDPOLLDRVSTAT struct floppy_drive_struct *
216 0x00000018 FDRESET int
217 0x00000019 FDGETFDCSTAT struct floppy_fdc_state *
218 0x0000001B FDWERRORCLR void
219 0x0000001C FDWERRORGET struct floppy_write_errors *
220 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 int
231 0x00001263 BLKRAGET int *
232 0x00000001 FIBMAP int * // I-O
233 0x00000002 FIGETBSZ int *
234 // <include/linux/hdreg.h>
236 0x00000301 HDIO_GETGEO struct hd_geometry *
238 0x00000302 HDIO_GET_UNMASKINTR int *
239 0x00000304 HDIO_GET_MULTCOUNT int *
240 0x00000307 HDIO_GET_IDENTITY struct hd_driveid *
241 0x00000308 HDIO_GET_KEEPSETTINGS int *
242 0x00000309 HDIO_GET_CHIPSET int *
243 0x0000030A HDIO_GET_NOWERR int *
244 0x0000030B HDIO_GET_DMA int *
245 0x0000031F HDIO_DRIVE_CMD int * // I-O
246 0x00000321 HDIO_SET_MULTCOUNT int
247 0x00000322 HDIO_SET_UNMASKINTR int
248 0x00000323 HDIO_SET_KEEPSETTINGS int
249 0x00000324 HDIO_SET_CHIPSET int
250 0x00000325 HDIO_SET_NOWERR int
251 0x00000326 HDIO_SET_DMA int
252 // <include/linux/if_eql.h>
254 0x000089F0 EQL_ENSLAVE struct ifreq * // MORE // I-O
256 0x000089F1 EQL_EMANCIPATE struct ifreq * // MORE // I-O
257 0x000089F2 EQL_GETSLAVECFG struct ifreq * // MORE // I-O
258 0x000089F3 EQL_SETSLAVECFG struct ifreq * // MORE // I-O
259 0x000089F4 EQL_GETMASTRCFG struct ifreq * // MORE // I-O
260 0x000089F5 EQL_SETMASTRCFG struct ifreq * // MORE // I-O
261 // <include/linux/if_plip.h>
263 0x000089F0 SIOCDEVPLIP struct ifreq * // I-O
266 // <include/linux/if_ppp.h>
268 0x00005490 PPPIOCGFLAGS int *
270 0x00005491 PPPIOCSFLAGS const int *
271 0x00005492 PPPIOCGASYNCMAP int *
272 0x00005493 PPPIOCSASYNCMAP const int *
273 0x00005494 PPPIOCGUNIT int *
274 0x00005495 PPPIOCSINPSIG const int *
275 0x00005497 PPPIOCSDEBUG const int *
276 0x00005498 PPPIOCGDEBUG int *
277 0x00005499 PPPIOCGSTAT struct ppp_stats *
278 0x0000549A PPPIOCGTIME struct ppp_ddinfo *
279 0x0000549B PPPIOCGXASYNCMAP struct { int [8]; } *
280 0x0000549C PPPIOCSXASYNCMAP const struct { int [8]; } *
281 0x0000549D PPPIOCSMRU const int *
282 0x0000549E PPPIOCRASYNCMAP const int *
283 0x0000549F PPPIOCSMAXCID const int *
284 // <include/linux/ipx.h>
286 0x000089E0 SIOCAIPXITFCRT const char *
288 0x000089E1 SIOCAIPXPRISLT const char *
289 0x000089E2 SIOCIPXCFGDATA struct ipx_config_data *
290 // <include/linux/kd.h>
292 0x00004B60 GIO_FONT struct { char [8192]; } *
294 0x00004B61 PIO_FONT const struct { char [8192]; } *
295 0x00004B6B GIO_FONTX struct console_font_desc * // MORE // I-O
296 0x00004B6C PIO_FONTX const struct console_font_desc * //MORE
297 0x00004B70 GIO_CMAP struct { char [48]; } *
298 0x00004B71 PIO_CMAP const struct { char [48]; }
299 0x00004B2F KIOCSOUND int
300 0x00004B30 KDMKTONE int
301 0x00004B31 KDGETLED char *
302 0x00004B32 KDSETLED int
303 0x00004B33 KDGKBTYPE char *
304 0x00004B34 KDADDIO int // MORE
305 0x00004B35 KDDELIO int // MORE
306 0x00004B36 KDENABIO void // MORE
307 0x00004B37 KDDISABIO void // MORE
308 0x00004B3A KDSETMODE int
309 0x00004B3B KDGETMODE int *
310 0x00004B3C KDMAPDISP void // MORE
311 0x00004B3D KDUNMAPDISP void // MORE
312 0x00004B40 GIO_SCRNMAP struct { char [E_TABSZ]; } *
313 0x00004B41 PIO_SCRNMAP const struct { char [E_TABSZ]; } *
314 0x00004B69 GIO_UNISCRNMAP struct { short [E_TABSZ]; } *
315 0x00004B6A PIO_UNISCRNMAP const struct { short [E_TABSZ]; } *
316 0x00004B66 GIO_UNIMAP struct unimapdesc * // MORE // I-O
317 0x00004B67 PIO_UNIMAP const struct unimapdesc * // MORE
318 0x00004B68 PIO_UNIMAPCLR const struct unimapinit *
319 0x00004B44 KDGKBMODE int *
320 0x00004B45 KDSKBMODE int
321 0x00004B62 KDGKBMETA int *
322 0x00004B63 KDSKBMETA int
323 0x00004B64 KDGKBLED int *
324 0x00004B65 KDSKBLED int
325 0x00004B46 KDGKBENT struct kbentry * // I-O
326 0x00004B47 KDSKBENT const struct kbentry *
327 0x00004B48 KDGKBSENT struct kbsentry * // I-O
328 0x00004B49 KDSKBSENT const struct kbsentry *
329 0x00004B4A KDGKBDIACR struct kbdiacrs *
330 0x00004B4B KDSKBDIACR const struct kbdiacrs *
332 0x00004B4C KDGETKEYCODE struct kbkeycode * // I-O
333 0x00004B4D KDSETKEYCODE const struct kbkeycode *
334 0x00004B4E KDSIGACCEPT int
335 // <include/linux/lp.h>
337 0x00000601 LPCHAR int
339 0x00000602 LPTIME int
340 0x00000604 LPABORT int
341 0x00000605 LPSETIRQ int
342 0x00000606 LPGETIRQ int *
343 0x00000608 LPWAIT int
344 0x00000609 LPCAREFUL int
345 0x0000060A LPABORTOPEN int
346 0x0000060B LPGETSTATUS int *
347 0x0000060C LPRESET void
348 0x0000060D LPGETSTATS struct lp_stats *
349 // <include/linux/mroute.h>
351 0x000089E0 SIOCGETVIFCNT struct sioc_vif_req * // I-O
353 0x000089E1 SIOCGETSGCNT struct sioc_sg_req * // I-O
354 // <include/linux/mtio.h>
356 0x40086D01 MTIOCTOP const struct mtop *
358 0x801C6D02 MTIOCGET struct mtget *
359 0x80046D03 MTIOCPOS struct mtpos *
360 0x80206D04 MTIOCGETCONFIG struct mtconfiginfo *
361 0x40206D05 MTIOCSETCONFIG const struct mtconfiginfo *
362 // <include/linux/netrom.h>
364 0x000089E0 SIOCNRGETPARMS struct nr_parms_struct * // I-O
366 0x000089E1 SIOCNRSETPARMS const struct nr_parms_struct *
367 0x000089E2 SIOCNRDECOBS void
368 0x000089E3 SIOCNRRTCTL const int *
369 // <include/linux/sbpcd.h>
371 0x00009000 DDIOCSDBG const int *
373 0x00005382 CDROMAUDIOBUFSIZ int
374 // <include/linux/scc.h>
376 0x00005470 TIOCSCCINI void
378 0x00005471 TIOCCHANINI const struct scc_modem *
379 0x00005472 TIOCGKISS struct ioctl_command * // I-O
380 0x00005473 TIOCSKISS const struct ioctl_command *
381 0x00005474 TIOCSCCSTAT struct scc_stat *
382 // <include/linux/scsi.h>
384 0x00005382 SCSI_IOCTL_GET_IDLUN struct { int [2]; } *
386 0x00005383 SCSI_IOCTL_TAGGED_ENABLE void
387 0x00005384 SCSI_IOCTL_TAGGED_DISABLE void
388 0x00005385 SCSI_IOCTL_PROBE_HOST const int * // MORE
389 // <include/linux/smb_fs.h>
391 0x80027501 SMB_IOC_GETMOUNTUID uid_t *
393 // <include/linux/sockios.h>
395 0x0000890B SIOCADDRT const struct rtentry * // MORE
398 0x0000890C SIOCDELRT const struct rtentry * // MORE
399 0x00008910 SIOCGIFNAME char []
400 0x00008911 SIOCSIFLINK void
401 0x00008912 SIOCGIFCONF struct ifconf * // MORE // I-O
402 0x00008913 SIOCGIFFLAGS struct ifreq * // I-O
403 0x00008914 SIOCSIFFLAGS const struct ifreq *
404 0x00008915 SIOCGIFADDR struct ifreq * // I-O
405 0x00008916 SIOCSIFADDR const struct ifreq *
406 0x00008917 SIOCGIFDSTADDR struct ifreq * // I-O
407 0x00008918 SIOCSIFDSTADDR const struct ifreq *
408 0x00008919 SIOCGIFBRDADDR struct ifreq * // I-O
409 0x0000891A SIOCSIFBRDADDR const struct ifreq *
410 0x0000891B SIOCGIFNETMASK struct ifreq * // I-O
411 0x0000891C SIOCSIFNETMASK const struct ifreq *
412 0x0000891D SIOCGIFMETRIC struct ifreq * // I-O
413 0x0000891E SIOCSIFMETRIC const struct ifreq *
414 0x0000891F SIOCGIFMEM struct ifreq * // I-O
415 0x00008920 SIOCSIFMEM const struct ifreq *
416 0x00008921 SIOCGIFMTU struct ifreq * // I-O
417 0x00008922 SIOCSIFMTU const struct ifreq *
418 0x00008923 OLD_SIOCGIFHWADDR struct ifreq * // I-O
419 0x00008924 SIOCSIFHWADDR const struct ifreq * // MORE
420 0x00008925 SIOCGIFENCAP int *
421 0x00008926 SIOCSIFENCAP const int *
422 0x00008927 SIOCGIFHWADDR struct ifreq * // I-O
423 0x00008929 SIOCGIFSLAVE void
424 0x00008930 SIOCSIFSLAVE void
425 0x00008931 SIOCADDMULTI const struct ifreq *
426 0x00008932 SIOCDELMULTI const struct ifreq *
427 0x00008940 SIOCADDRTOLD void
428 0x00008941 SIOCDELRTOLD void
429 0x00008950 SIOCDARP const struct arpreq *
430 0x00008951 SIOCGARP struct arpreq * // I-O
431 0x00008952 SIOCSARP const struct arpreq *
432 0x00008960 SIOCDRARP const struct arpreq *
433 0x00008961 SIOCGRARP struct arpreq * // I-O
434 0x00008962 SIOCSRARP const struct arpreq *
435 0x00008970 SIOCGIFMAP struct ifreq * // I-O
436 0x00008971 SIOCSIFMAP const struct ifreq *
437 // <include/linux/soundcard.h>
439 0x00005100 SNDCTL_SEQ_RESET void
441 0x00005101 SNDCTL_SEQ_SYNC void
442 0xC08C5102 SNDCTL_SYNTH_INFO struct synth_info * // I-O
443 0xC0045103 SNDCTL_SEQ_CTRLRATE int * // I-O
444 0x80045104 SNDCTL_SEQ_GETOUTCOUNT int *
445 0x80045105 SNDCTL_SEQ_GETINCOUNT int *
446 0x40045106 SNDCTL_SEQ_PERCMODE void
447 0x40285107 SNDCTL_FM_LOAD_INSTR const struct sbi_instrument *
448 0x40045108 SNDCTL_SEQ_TESTMIDI const int *
449 0x40045109 SNDCTL_SEQ_RESETSAMPLES const int *
450 0x8004510A SNDCTL_SEQ_NRSYNTHS int *
451 0x8004510B SNDCTL_SEQ_NRMIDIS int *
452 0xC074510C SNDCTL_MIDI_INFO struct midi_info * // I-O
453 0x4004510D SNDCTL_SEQ_THRESHOLD const int *
454 0xC004510E SNDCTL_SYNTH_MEMAVL int * // I-O
455 0x4004510F SNDCTL_FM_4OP_ENABLE const int *
456 0xCFB85110 SNDCTL_PMGR_ACCESS struct patmgr_info * // I-O
457 0x00005111 SNDCTL_SEQ_PANIC void
458 0x40085112 SNDCTL_SEQ_OUTOFBAND const struct seq_event_rec *
459 0xC0045401 SNDCTL_TMR_TIMEBASE int * // I-O
460 0x00005402 SNDCTL_TMR_START void
461 0x00005403 SNDCTL_TMR_STOP void
462 0x00005404 SNDCTL_TMR_CONTINUE void
464 0xC0045405 SNDCTL_TMR_TEMPO int * // I-O
465 0xC0045406 SNDCTL_TMR_SOURCE int * // I-O
466 0x40045407 SNDCTL_TMR_METRONOME const int *
467 0x40045408 SNDCTL_TMR_SELECT int * // I-O
468 0xCFB85001 SNDCTL_PMGR_IFACE struct patmgr_info * // I-O
469 0xC0046D00 SNDCTL_MIDI_PRETIME int * // I-O
470 0xC0046D01 SNDCTL_MIDI_MPUMODE const int *
471 0xC0216D02 SNDCTL_MIDI_MPUCMD struct mpu_command_rec * // I-O
472 0x00005000 SNDCTL_DSP_RESET void
473 0x00005001 SNDCTL_DSP_SYNC void
474 0xC0045002 SNDCTL_DSP_SPEED int * // I-O
475 0xC0045003 SNDCTL_DSP_STEREO int * // I-O
476 0xC0045004 SNDCTL_DSP_GETBLKSIZE int * // I-O
477 0xC0045006 SOUND_PCM_WRITE_CHANNELS int * // I-O
478 0xC0045007 SOUND_PCM_WRITE_FILTER int * // I-O
479 0x00005008 SNDCTL_DSP_POST void
480 0xC0045009 SNDCTL_DSP_SUBDIVIDE int * // I-O
481 0xC004500A SNDCTL_DSP_SETFRAGMENT int * // I-O
482 0x8004500B SNDCTL_DSP_GETFMTS int *
483 0xC0045005 SNDCTL_DSP_SETFMT int * // I-O
484 0x800C500C SNDCTL_DSP_GETOSPACE struct audio_buf_info *
485 0x800C500D SNDCTL_DSP_GETISPACE struct audio_buf_info *
486 0x0000500E SNDCTL_DSP_NONBLOCK void
487 0x80045002 SOUND_PCM_READ_RATE int *
488 0x80045006 SOUND_PCM_READ_CHANNELS int *
489 0x80045005 SOUND_PCM_READ_BITS int *
490 0x80045007 SOUND_PCM_READ_FILTER int *
491 0x00004300 SNDCTL_COPR_RESET void
492 0xCFB04301 SNDCTL_COPR_LOAD const struct copr_buffer *
493 0xC0144302 SNDCTL_COPR_RDATA struct copr_debug_buf * // I-O
494 0xC0144303 SNDCTL_COPR_RCODE struct copr_debug_buf * // I-O
495 0x40144304 SNDCTL_COPR_WDATA const struct copr_debug_buf *
496 0x40144305 SNDCTL_COPR_WCODE const struct copr_debug_buf *
497 0xC0144306 SNDCTL_COPR_RUN struct copr_debug_buf * // I-O
498 0xC0144307 SNDCTL_COPR_HALT struct copr_debug_buf * // I-O
499 0x4FA44308 SNDCTL_COPR_SENDMSG const struct copr_msg *
500 0x8FA44309 SNDCTL_COPR_RCVMSG struct copr_msg *
501 0x80044D00 SOUND_MIXER_READ_VOLUME int *
502 0x80044D01 SOUND_MIXER_READ_BASS int *
503 0x80044D02 SOUND_MIXER_READ_TREBLE int *
504 0x80044D03 SOUND_MIXER_READ_SYNTH int *
505 0x80044D04 SOUND_MIXER_READ_PCM int *
506 0x80044D05 SOUND_MIXER_READ_SPEAKER int *
507 0x80044D06 SOUND_MIXER_READ_LINE int *
508 0x80044D07 SOUND_MIXER_READ_MIC int *
509 0x80044D08 SOUND_MIXER_READ_CD int *
510 0x80044D09 SOUND_MIXER_READ_IMIX int *
511 0x80044D0A SOUND_MIXER_READ_ALTPCM int *
512 0x80044D0B SOUND_MIXER_READ_RECLEV int *
513 0x80044D0C SOUND_MIXER_READ_IGAIN int *
514 0x80044D0D SOUND_MIXER_READ_OGAIN int *
515 0x80044D0E SOUND_MIXER_READ_LINE1 int *
516 0x80044D0F SOUND_MIXER_READ_LINE2 int *
517 0x80044D10 SOUND_MIXER_READ_LINE3 int *
518 0x80044D1C SOUND_MIXER_READ_MUTE int *
519 0x80044D1D SOUND_MIXER_READ_ENHANCE int *
520 0x80044D1E SOUND_MIXER_READ_LOUD int *
521 0x80044DFF SOUND_MIXER_READ_RECSRC int *
522 0x80044DFE SOUND_MIXER_READ_DEVMASK int *
523 0x80044DFD SOUND_MIXER_READ_RECMASK int *
524 0x80044DFB SOUND_MIXER_READ_STEREODEVS int *
525 0x80044DFC SOUND_MIXER_READ_CAPS int *
526 0xC0044D00 SOUND_MIXER_WRITE_VOLUME int * // I-O
527 0xC0044D01 SOUND_MIXER_WRITE_BASS int * // I-O
528 0xC0044D02 SOUND_MIXER_WRITE_TREBLE int * // I-O
530 0xC0044D03 SOUND_MIXER_WRITE_SYNTH int * // I-O
531 0xC0044D04 SOUND_MIXER_WRITE_PCM int * // I-O
532 0xC0044D05 SOUND_MIXER_WRITE_SPEAKER int * // I-O
533 0xC0044D06 SOUND_MIXER_WRITE_LINE int * // I-O
534 0xC0044D07 SOUND_MIXER_WRITE_MIC int * // I-O
535 0xC0044D08 SOUND_MIXER_WRITE_CD int * // I-O
536 0xC0044D09 SOUND_MIXER_WRITE_IMIX int * // I-O
537 0xC0044D0A SOUND_MIXER_WRITE_ALTPCM int * // I-O
538 0xC0044D0B SOUND_MIXER_WRITE_RECLEV int * // I-O
539 0xC0044D0C SOUND_MIXER_WRITE_IGAIN int * // I-O
540 0xC0044D0D SOUND_MIXER_WRITE_OGAIN int * // I-O
541 0xC0044D0E SOUND_MIXER_WRITE_LINE1 int * // I-O
542 0xC0044D0F SOUND_MIXER_WRITE_LINE2 int * // I-O
543 0xC0044D10 SOUND_MIXER_WRITE_LINE3 int * // I-O
544 0xC0044D1C SOUND_MIXER_WRITE_MUTE int * // I-O
545 0xC0044D1D SOUND_MIXER_WRITE_ENHANCE int * // I-O
546 0xC0044D1E SOUND_MIXER_WRITE_LOUD int * // I-O
547 0xC0044DFF SOUND_MIXER_WRITE_RECSRC int * // I-O
548 // <include/linux/umsdos_fs.h>
550 0x000004D2 UMSDOS_READDIR_DOS struct umsdos_ioctl * // I-O
552 0x000004D3 UMSDOS_UNLINK_DOS const struct umsdos_ioctl *
553 0x000004D4 UMSDOS_RMDIR_DOS const struct umsdos_ioctl *
554 0x000004D5 UMSDOS_STAT_DOS struct umsdos_ioctl * // I-O
555 0x000004D6 UMSDOS_CREAT_EMD const struct umsdos_ioctl *
556 0x000004D7 UMSDOS_UNLINK_EMD const struct umsdos_ioctl *
557 0x000004D8 UMSDOS_READDIR_EMD struct umsdos_ioctl * // I-O
558 0x000004D9 UMSDOS_GETVERSION struct umsdos_ioctl *
559 0x000004DA UMSDOS_INIT_EMD void
560 0x000004DB UMSDOS_DOS_SETUP const struct umsdos_ioctl *
561 0x000004DC UMSDOS_RENAME_DOS const struct umsdos_ioctl *
562 // <include/linux/vt.h>
564 0x00005600 VT_OPENQRY int *
566 0x00005601 VT_GETMODE struct vt_mode *
567 0x00005602 VT_SETMODE const struct vt_mode *
568 0x00005603 VT_GETSTATE struct vt_stat *
569 0x00005604 VT_SENDSIG void
570 0x00005605 VT_RELDISP int
571 0x00005606 VT_ACTIVATE int
572 0x00005607 VT_WAITACTIVE int
573 0x00005608 VT_DISALLOCATE int
574 0x00005609 VT_RESIZE const struct vt_sizes *
575 0x0000560A VT_RESIZEX const struct vt_consize *
576 // More arguments. Some ioctl's take a pointer to a structure which
578 contains additional pointers. These are documented here in alphabeti‐
579 cal order.
580 CDROMREADAUDIO takes an input pointer const struct cdrom_read_audio *.
582 The buf field points to an output buffer of length nframes * CD_FRAME‐
583 SIZE_RAW.
584 CDROMREADCOOKED, CDROMREADMODE1, CDROMREADMODE2, and CDROMREADRAW take
586 an input pointer const struct cdrom_msf *. They use the same pointer
587 as an output pointer to char []. The length varies by request. For
588 CDROMREADMODE1, most drivers use CD_FRAMESIZE, but the Optics Storage
589 driver uses OPT_BLOCKSIZE instead (both have the numerical value 2048).
590 CDROMREADCOOKED char [CD_FRAMESIZE]
592 CDROMREADMODE1 char [CD_FRAMESIZE or OPT_BLOCKSIZE]
593 CDROMREADMODE2 char [CD_FRAMESIZE_RAW0]
594 CDROMREADRAW char [CD_FRAMESIZE_RAW]
595 EQL_ENSLAVE, EQL_EMANCIPATE, EQL_GETSLAVECFG, EQL_SETSLAVECFG, EQL_GET‐
597 MASTERCFG, and EQL_SETMASTERCFG take a struct ifreq *. The ifr_data
598 field is a pointer to another structure as follows:
599 EQL_ENSLAVE const struct slaving_request *
601 EQL_EMANCIPATE const struct slaving_request *
602 EQL_GETSLAVECFG struct slave_config * // I-O
603 EQL_SETSLAVECFG const struct slave_config *
604 EQL_GETMASTERCFG struct master_config *
605 EQL_SETMASTERCFG const struct master_config *
606 FDRAWCMD takes a struct floppy raw_cmd *. If flags & FD_RAW_WRITE is
608 non-zero, then data points to an input buffer of length length. If
609 flags & FD_RAW_READ is non-zero, then data points to an output buffer
610 of length length.
611 GIO_FONTX and PIO_FONTX take a struct console_font_desc * or a const
613 struct console_font_desc *, respectively. chardata points to a buffer
614 of char [charcount]. This is an output buffer for GIO_FONTX and an
615 input buffer for PIO_FONTX.
616 GIO_UNIMAP and PIO_UNIMAP take a struct unimapdesc * or a const struct
618 unimapdesc *, respectively. entries points to a buffer of struct uni‐
619 pair [entry_ct]. This is an output buffer for GIO_UNIMAP and an input
620 buffer for PIO_UNIMAP.
621 KDADDIO, KDDELIO, KDDISABIO, and KDENABIO enable or disable access to
623 I/O ports. They are essentially alternate interfaces to 'ioperm'.
624 KDMAPDISP and KDUNMAPDISP enable or disable memory mappings or I/O port
626 access. They are not implemented in the kernel.
627 SCSI_IOCTL_PROBE_HOST takes an input pointer const int *, which is a
629 length. It uses the same pointer as an output pointer to a char []
630 buffer of this length.
631 SIOCADDRT and SIOCDELRT take an input pointer whose type depends on the
633 protocol:
634 Most protocols const struct rtentry *
636 AX.25 const struct ax25_route *
637 NET/ROM const struct nr_route_struct *
638 SIOCGIFCONF takes a struct ifconf *. The ifc_buf field points to a
640 buffer of length ifc_len bytes, into which the kernel writes a list of
641 type struct ifreq [].
642 SIOCSIFHWADDR takes an input pointer whose type depends on the proto‐
644 col:
645 Most protocols const struct ifreq *
647 AX.25 const char [AX25_ADDR_LEN]
648 TIOCLINUX takes a const char *. It uses this to distinguish several
650 independent sub-cases. In the table below, N + foo means foo after an
651 N-byte pad. struct selection is implicitly defined in driv‐
652 ers/char/selection.c
653 TIOCLINUX-2 1 + const struct selection *
655 TIOCLINUX-3 void
656 TIOCLINUX-4 void
657 TIOCLINUX-5 4 + const struct { long [8]; } *
658 TIOCLINUX-6 char *
659 TIOCLINUX-7 char *
660 TIOCLINUX-10 1 + const char *
661 // Duplicate ioctls
663 This list does not include ioctls in the range SIOCDEVPRIVATE and
665 SIOCPROTOPRIVATE.
666 0x00000001 FDSETPRM FIBMAP
668 0x00000002 FDDEFPRM FIGETBSZ
669 0x00005382 CDROMAUDIOBUFSIZ SCSI_IOCTL_GET_IDLUN
670 0x00005402 SNDCTL_TMR_START TCSETS
671 0x00005403 SNDCTL_TMR_STOP TCSETSW
672 0x00005404 SNDCTL_TMR_CONTINUE TCSETSF
673
675 ioctl(2)
676
678 This page is part of release 3.22 of the Linux man-pages project. A
679 description of the project, and information about reporting bugs, can
680 be found at http://www.kernel.org/doc/man-pages/.
681Linux 2007-12-29 IOCTL_LIST(2)