3 .\" Michael Elizabeth Chastain
4 .\" <mec@duracef.shout.net>
8 .\" Ioctl List 1.3.27 is copyright 1995 by Michael Elizabeth Chastain.
9 .\" It is licensed under the Gnu Public License, Version 2.
15 .\" 1.3.27 421 ioctls.
16 .\" Type information for non-pointer args.
17 .\" SIOCDEVPRIVATE, SIOCPROTOPRIVATE ioctls.
18 .\" Descriptions of extended arguments.
21 .\" First public version.
24 .TH IOCTL_LIST 2 2003-03-30 "Linux 1.3" "Linux Programmer's Manual"
26 ioctl_list \- list of ioctl calls in Linux/i386 kernel
28 This is Ioctl List 1.3.27, a list of ioctl calls in Linux/i386 kernel
29 1.3.27. It contains 421 ioctls from /usr/include/{asm,linux}/*.h.
30 For each ioctl, its numerical value, its name, and its argument
33 An argument type of 'const struct foo *' means the argument is input
34 to the kernel. 'struct foo *' means the kernel outputs the argument.
35 If the kernel uses the argument for both input and output, this is
38 Some ioctls take more arguments or return more values than a single
39 structure. These are marked // MORE and documented further in a
42 This list is very incomplete.
43 Please e-mail changes and comments to <mec@duracef.shout.net>.
45 .\" added two sections - aeb
46 Ioctl command values are 32-bit constants.
47 In principle these constants are completely arbitrary, but people have
48 tried to build some structure into them.
50 The old Linux situation was that of mostly 16-bit constants, where the
51 last byte is a serial number, and the preceding byte(s) give a type
52 indicating the driver. Sometimes the major number was used: 0x03
53 for the HDIO_* ioctls, 0x06 for the LP* ioctls. And sometimes
54 one or more ASCII letters were used. For example, TCGETS has value
55 0x00005401, with 0x54 = 'T' indicating the terminal driver, and
56 CYGETTIMEOUT has value 0x00435906, with 0x43 0x59 = 'C' 'Y'
57 indicating the cyclades driver.
59 Later (0.98p5) some more information was built into the number.
60 One has 2 direction bits
61 (00: none, 01: write, 10: read, 11: read/write)
62 followed by 14 size bits (giving the size of the argument),
63 followed by an 8-bit type (collecting the ioctls in groups
64 for a common purpose or a common driver), and an 8-bit
67 The macros describing this structure live in <asm/ioctl.h>
68 and are _IO(type,nr) and {_IOR,_IOW,_IOWR}(type,nr,size).
69 They use sizeof(size) so that size is a
70 misnomer here: this third parameter is a data type.
72 Note that the size bits are very unreliable: in lots of cases
73 they are wrong, either because of buggy macros using
74 sizeof(sizeof(struct)), or because of legacy values.
76 Thus, it seems that the new structure only gave disadvantages:
77 it does not help in checking, but it causes varying values
78 for the various architectures.
80 Decent ioctls return 0 on success and \-1 on error, while
81 any output value is stored via the argument. However,
82 quite a few ioctls in fact return an output value.
83 This is not yet indicated below.
89 // <include/asm-i386/socket.h>
90 0x00008901 FIOSETOWN const int *
91 0x00008902 SIOCSPGRP const int *
92 0x00008903 FIOGETOWN int *
93 0x00008904 SIOCGPGRP int *
94 0x00008905 SIOCATMARK int *
95 0x00008906 SIOCGSTAMP timeval *
97 // <include/asm-i386/termios.h>
98 0x00005401 TCGETS struct termios *
99 0x00005402 TCSETS const struct termios *
100 0x00005403 TCSETSW const struct termios *
101 0x00005404 TCSETSF const struct termios *
102 0x00005405 TCGETA struct termio *
103 0x00005406 TCSETA const struct termio *
104 0x00005407 TCSETAW const struct termio *
105 0x00005408 TCSETAF const struct termio *
106 0x00005409 TCSBRK int
107 0x0000540A TCXONC int
108 0x0000540B TCFLSH int
109 0x0000540C TIOCEXCL void
110 0x0000540D TIOCNXCL void
111 0x0000540E TIOCSCTTY int
112 0x0000540F TIOCGPGRP pid_t *
113 0x00005410 TIOCSPGRP const pid_t *
114 0x00005411 TIOCOUTQ int *
115 0x00005412 TIOCSTI const char *
116 0x00005413 TIOCGWINSZ struct winsize *
117 0x00005414 TIOCSWINSZ const struct winsize *
118 0x00005415 TIOCMGET int *
119 0x00005416 TIOCMBIS const int *
120 0x00005417 TIOCMBIC const int *
121 0x00005418 TIOCMSET const int *
122 0x00005419 TIOCGSOFTCAR int *
123 0x0000541A TIOCSSOFTCAR const int *
124 0x0000541B FIONREAD int *
125 0x0000541B TIOCINQ int *
126 0x0000541C TIOCLINUX const char * // MORE
127 0x0000541D TIOCCONS void
128 0x0000541E TIOCGSERIAL struct serial_struct *
129 0x0000541F TIOCSSERIAL const struct serial_struct *
130 0x00005420 TIOCPKT const int *
131 0x00005421 FIONBIO const int *
132 0x00005422 TIOCNOTTY void
133 0x00005423 TIOCSETD const int *
134 0x00005424 TIOCGETD int *
135 0x00005425 TCSBRKP int
136 0x00005426 TIOCTTYGSTRUCT struct tty_struct *
137 0x00005450 FIONCLEX void
138 0x00005451 FIOCLEX void
139 0x00005452 FIOASYNC const int *
140 0x00005453 TIOCSERCONFIG void
141 0x00005454 TIOCSERGWILD int *
142 0x00005455 TIOCSERSWILD const int *
143 0x00005456 TIOCGLCKTRMIOS struct termios *
144 0x00005457 TIOCSLCKTRMIOS const struct termios *
145 0x00005458 TIOCSERGSTRUCT struct async_struct *
146 0x00005459 TIOCSERGETLSR int *
147 0x0000545A TIOCSERGETMULTI struct serial_multiport_struct *
148 0x0000545B TIOCSERSETMULTI const struct serial_multiport_struct *
150 // <include/linux/ax25.h>
151 0x000089E0 SIOCAX25GETUID const struct sockaddr_ax25 *
152 0x000089E1 SIOCAX25ADDUID const struct sockaddr_ax25 *
153 0x000089E2 SIOCAX25DELUID const struct sockaddr_ax25 *
154 0x000089E3 SIOCAX25NOUID const int *
155 0x000089E4 SIOCAX25DIGCTL const int *
156 0x000089E5 SIOCAX25GETPARMS struct ax25_parms_struct * // I-O
157 0x000089E6 SIOCAX25SETPARMS const struct ax25_parms_struct *
159 // <include/linux/cdk.h>
160 0x00007314 STL_BINTR void
161 0x00007315 STL_BSTART void
162 0x00007316 STL_BSTOP void
163 0x00007317 STL_BRESET void
165 // <include/linux/cdrom.h>
166 0x00005301 CDROMPAUSE void
167 0x00005302 CDROMRESUME void
168 0x00005303 CDROMPLAYMSF const struct cdrom_msf *
169 0x00005304 CDROMPLAYTRKIND const struct cdrom_ti *
170 0x00005305 CDROMREADTOCHDR struct cdrom_tochdr *
171 0x00005306 CDROMREADTOCENTRY struct cdrom_tocentry * // I-O
172 0x00005307 CDROMSTOP void
173 0x00005308 CDROMSTART void
174 0x00005309 CDROMEJECT void
175 0x0000530A CDROMVOLCTRL const struct cdrom_volctrl *
176 0x0000530B CDROMSUBCHNL struct cdrom_subchnl * // I-O
177 0x0000530C CDROMREADMODE2 const struct cdrom_msf * // MORE
178 0x0000530D CDROMREADMODE1 const struct cdrom_msf * // MORE
179 0x0000530E CDROMREADAUDIO const struct cdrom_read_audio * // MORE
180 0x0000530F CDROMEJECT_SW int
181 0x00005310 CDROMMULTISESSION struct cdrom_multisession * // I-O
182 0x00005311 CDROM_GET_UPC struct { char [8]; } *
183 0x00005312 CDROMRESET void
184 0x00005313 CDROMVOLREAD struct cdrom_volctrl *
185 0x00005314 CDROMREADRAW const struct cdrom_msf * // MORE
186 0x00005315 CDROMREADCOOKED const struct cdrom_msf * // MORE
187 0x00005316 CDROMSEEK const struct cdrom_msf *
189 // <include/linux/cm206.h>
190 0x00002000 CM206CTL_GET_STAT int
191 0x00002001 CM206CTL_GET_LAST_STAT int
193 // <include/linux/cyclades.h>
194 0x00435901 CYGETMON struct cyclades_monitor *
195 0x00435902 CYGETTHRESH int *
196 0x00435903 CYSETTHRESH int
197 0x00435904 CYGETDEFTHRESH int *
198 0x00435905 CYSETDEFTHRESH int
199 0x00435906 CYGETTIMEOUT int *
200 0x00435907 CYSETTIMEOUT int
201 0x00435908 CYGETDEFTIMEOUT int *
202 0x00435909 CYSETDEFTIMEOUT int
204 // <include/linux/ext2_fs.h>
205 0x80046601 EXT2_IOC_GETFLAGS int *
206 0x40046602 EXT2_IOC_SETFLAGS const int *
207 0x80047601 EXT2_IOC_GETVERSION int *
208 0x40047602 EXT2_IOC_SETVERSION const int *
210 // <include/linux/fd.h>
211 0x00000000 FDCLRPRM void
212 0x00000001 FDSETPRM const struct floppy_struct *
213 0x00000002 FDDEFPRM const struct floppy_struct *
214 0x00000003 FDGETPRM struct floppy_struct *
215 0x00000004 FDMSGON void
216 0x00000005 FDMSGOFF void
217 0x00000006 FDFMTBEG void
218 0x00000007 FDFMTTRK const struct format_descr *
219 0x00000008 FDFMTEND void
220 0x0000000A FDSETEMSGTRESH int
221 0x0000000B FDFLUSH void
222 0x0000000C FDSETMAXERRS const struct floppy_max_errors *
223 0x0000000E FDGETMAXERRS struct floppy_max_errors *
224 0x00000010 FDGETDRVTYP struct { char [16]; } *
225 0x00000014 FDSETDRVPRM const struct floppy_drive_params *
226 0x00000015 FDGETDRVPRM struct floppy_drive_params *
227 0x00000016 FDGETDRVSTAT struct floppy_drive_struct *
228 0x00000017 FDPOLLDRVSTAT struct floppy_drive_struct *
229 0x00000018 FDRESET int
230 0x00000019 FDGETFDCSTAT struct floppy_fdc_state *
231 0x0000001B FDWERRORCLR void
232 0x0000001C FDWERRORGET struct floppy_write_errors *
233 0x0000001E FDRAWCMD struct floppy_raw_cmd * // MORE // I-O
234 0x00000028 FDTWADDLE void
236 // <include/linux/fs.h>
237 0x0000125D BLKROSET const int *
238 0x0000125E BLKROGET int *
239 0x0000125F BLKRRPART void
240 0x00001260 BLKGETSIZE int *
241 0x00001261 BLKFLSBUF void
242 0x00001262 BLKRASET int
243 0x00001263 BLKRAGET int *
244 0x00000001 FIBMAP int * // I-O
245 0x00000002 FIGETBSZ int *
247 // <include/linux/hdreg.h>
248 0x00000301 HDIO_GETGEO struct hd_geometry *
249 0x00000302 HDIO_GET_UNMASKINTR int *
250 0x00000304 HDIO_GET_MULTCOUNT int *
251 0x00000307 HDIO_GET_IDENTITY struct hd_driveid *
252 0x00000308 HDIO_GET_KEEPSETTINGS int *
253 0x00000309 HDIO_GET_CHIPSET int *
254 0x0000030A HDIO_GET_NOWERR int *
255 0x0000030B HDIO_GET_DMA int *
256 0x0000031F HDIO_DRIVE_CMD int * // I-O
257 0x00000321 HDIO_SET_MULTCOUNT int
258 0x00000322 HDIO_SET_UNMASKINTR int
259 0x00000323 HDIO_SET_KEEPSETTINGS int
260 0x00000324 HDIO_SET_CHIPSET int
261 0x00000325 HDIO_SET_NOWERR int
262 0x00000326 HDIO_SET_DMA int
264 // <include/linux/if_eql.h>
265 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
272 // <include/linux/if_plip.h>
273 0x000089F0 SIOCDEVPLIP struct ifreq * // I-O
275 // <include/linux/if_ppp.h>
276 0x00005490 PPPIOCGFLAGS int *
277 0x00005491 PPPIOCSFLAGS const int *
278 0x00005492 PPPIOCGASYNCMAP int *
279 0x00005493 PPPIOCSASYNCMAP const int *
280 0x00005494 PPPIOCGUNIT int *
281 0x00005495 PPPIOCSINPSIG const int *
282 0x00005497 PPPIOCSDEBUG const int *
283 0x00005498 PPPIOCGDEBUG int *
284 0x00005499 PPPIOCGSTAT struct ppp_stats *
285 0x0000549A PPPIOCGTIME struct ppp_ddinfo *
286 0x0000549B PPPIOCGXASYNCMAP struct { int [8]; } *
287 0x0000549C PPPIOCSXASYNCMAP const struct { int [8]; } *
288 0x0000549D PPPIOCSMRU const int *
289 0x0000549E PPPIOCRASYNCMAP const int *
290 0x0000549F PPPIOCSMAXCID const int *
292 // <include/linux/ipx.h>
293 0x000089E0 SIOCAIPXITFCRT const char *
294 0x000089E1 SIOCAIPXPRISLT const char *
295 0x000089E2 SIOCIPXCFGDATA struct ipx_config_data *
297 // <include/linux/kd.h>
298 0x00004B60 GIO_FONT struct { char [8192]; } *
299 0x00004B61 PIO_FONT const struct { char [8192]; } *
300 0x00004B6B GIO_FONTX struct console_font_desc * // MORE I-O
301 0x00004B6C PIO_FONTX const struct console_font_desc * //MORE
302 0x00004B70 GIO_CMAP struct { char [48]; } *
303 0x00004B71 PIO_CMAP const struct { char [48]; }
304 0x00004B2F KIOCSOUND int
305 0x00004B30 KDMKTONE int
306 0x00004B31 KDGETLED char *
307 0x00004B32 KDSETLED int
308 0x00004B33 KDGKBTYPE char *
309 0x00004B34 KDADDIO int // MORE
310 0x00004B35 KDDELIO int // MORE
311 0x00004B36 KDENABIO void // MORE
312 0x00004B37 KDDISABIO void // MORE
313 0x00004B3A KDSETMODE int
314 0x00004B3B KDGETMODE int *
315 0x00004B3C KDMAPDISP void // MORE
316 0x00004B3D KDUNMAPDISP void // MORE
317 0x00004B40 GIO_SCRNMAP struct { char [E_TABSZ]; } *
318 0x00004B41 PIO_SCRNMAP const struct { char [E_TABSZ]; } *
319 0x00004B69 GIO_UNISCRNMAP struct { short [E_TABSZ]; } *
320 0x00004B6A PIO_UNISCRNMAP const struct { short [E_TABSZ]; } *
321 0x00004B66 GIO_UNIMAP struct unimapdesc * // MORE // I-O
322 0x00004B67 PIO_UNIMAP const struct unimapdesc * // MORE
323 0x00004B68 PIO_UNIMAPCLR const struct unimapinit *
324 0x00004B44 KDGKBMODE int *
325 0x00004B45 KDSKBMODE int
326 0x00004B62 KDGKBMETA int *
327 0x00004B63 KDSKBMETA int
328 0x00004B64 KDGKBLED int *
329 0x00004B65 KDSKBLED int
330 0x00004B46 KDGKBENT struct kbentry * // I-O
331 0x00004B47 KDSKBENT const struct kbentry *
332 0x00004B48 KDGKBSENT struct kbsentry * // I-O
333 0x00004B49 KDSKBSENT const struct kbsentry *
334 0x00004B4A KDGKBDIACR struct kbdiacrs *
335 0x00004B4B KDSKBDIACR const struct kbdiacrs *
336 0x00004B4C KDGETKEYCODE struct kbkeycode * // I-O
337 0x00004B4D KDSETKEYCODE const struct kbkeycode *
338 0x00004B4E KDSIGACCEPT int
340 // <include/linux/lp.h>
341 0x00000601 LPCHAR int
342 0x00000602 LPTIME int
343 0x00000604 LPABORT int
344 0x00000605 LPSETIRQ int
345 0x00000606 LPGETIRQ int *
346 0x00000608 LPWAIT int
347 0x00000609 LPCAREFUL int
348 0x0000060A LPABORTOPEN int
349 0x0000060B LPGETSTATUS int *
350 0x0000060C LPRESET void
351 0x0000060D LPGETSTATS struct lp_stats *
353 // <include/linux/mroute.h>
354 0x000089E0 SIOCGETVIFCNT struct sioc_vif_req * // I-O
355 0x000089E1 SIOCGETSGCNT struct sioc_sg_req * // I-O
357 // <include/linux/mtio.h>
358 0x40086D01 MTIOCTOP const struct mtop *
359 0x801C6D02 MTIOCGET struct mtget *
360 0x80046D03 MTIOCPOS struct mtpos *
361 0x80206D04 MTIOCGETCONFIG struct mtconfiginfo *
362 0x40206D05 MTIOCSETCONFIG const struct mtconfiginfo *
364 // <include/linux/netrom.h>
365 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 *
370 // <include/linux/sbpcd.h>
371 0x00009000 DDIOCSDBG const int *
372 0x00005382 CDROMAUDIOBUFSIZ int
374 // <include/linux/scc.h>
375 0x00005470 TIOCSCCINI void
376 0x00005471 TIOCCHANINI const struct scc_modem *
377 0x00005472 TIOCGKISS struct ioctl_command * // I-O
378 0x00005473 TIOCSKISS const struct ioctl_command *
379 0x00005474 TIOCSCCSTAT struct scc_stat *
381 // <include/linux/scsi.h>
382 0x00005382 SCSI_IOCTL_GET_IDLUN struct { int [2]; } *
383 0x00005383 SCSI_IOCTL_TAGGED_ENABLE void
384 0x00005384 SCSI_IOCTL_TAGGED_DISABLE void
385 0x00005385 SCSI_IOCTL_PROBE_HOST const int * // MORE
387 // <include/linux/smb_fs.h>
388 0x80027501 SMB_IOC_GETMOUNTUID uid_t *
390 // <include/linux/sockios.h>
391 0x0000890B SIOCADDRT const struct rtentry * // MORE
392 0x0000890C SIOCDELRT const struct rtentry * // MORE
393 0x00008910 SIOCGIFNAME char []
394 0x00008911 SIOCSIFLINK void
395 0x00008912 SIOCGIFCONF struct ifconf * // MORE // I-O
396 0x00008913 SIOCGIFFLAGS struct ifreq * // I-O
397 0x00008914 SIOCSIFFLAGS const struct ifreq *
398 0x00008915 SIOCGIFADDR struct ifreq * // I-O
399 0x00008916 SIOCSIFADDR const struct ifreq *
400 0x00008917 SIOCGIFDSTADDR struct ifreq * // I-O
401 0x00008918 SIOCSIFDSTADDR const struct ifreq *
402 0x00008919 SIOCGIFBRDADDR struct ifreq * // I-O
403 0x0000891A SIOCSIFBRDADDR const struct ifreq *
404 0x0000891B SIOCGIFNETMASK struct ifreq * // I-O
405 0x0000891C SIOCSIFNETMASK const struct ifreq *
406 0x0000891D SIOCGIFMETRIC struct ifreq * // I-O
407 0x0000891E SIOCSIFMETRIC const struct ifreq *
408 0x0000891F SIOCGIFMEM struct ifreq * // I-O
409 0x00008920 SIOCSIFMEM const struct ifreq *
410 0x00008921 SIOCGIFMTU struct ifreq * // I-O
411 0x00008922 SIOCSIFMTU const struct ifreq *
412 0x00008923 OLD_SIOCGIFHWADDR struct ifreq * // I-O
413 0x00008924 SIOCSIFHWADDR const struct ifreq * // MORE
414 0x00008925 SIOCGIFENCAP int *
415 0x00008926 SIOCSIFENCAP const int *
416 0x00008927 SIOCGIFHWADDR struct ifreq * // I-O
417 0x00008929 SIOCGIFSLAVE void
418 0x00008930 SIOCSIFSLAVE void
419 0x00008931 SIOCADDMULTI const struct ifreq *
420 0x00008932 SIOCDELMULTI const struct ifreq *
421 0x00008940 SIOCADDRTOLD void
422 0x00008941 SIOCDELRTOLD void
423 0x00008950 SIOCDARP const struct arpreq *
424 0x00008951 SIOCGARP struct arpreq * // I-O
425 0x00008952 SIOCSARP const struct arpreq *
426 0x00008960 SIOCDRARP const struct arpreq *
427 0x00008961 SIOCGRARP struct arpreq * // I-O
428 0x00008962 SIOCSRARP const struct arpreq *
429 0x00008970 SIOCGIFMAP struct ifreq * // I-O
430 0x00008971 SIOCSIFMAP const struct ifreq *
432 // <include/linux/soundcard.h>
433 0x00005100 SNDCTL_SEQ_RESET void
434 0x00005101 SNDCTL_SEQ_SYNC void
435 0xC08C5102 SNDCTL_SYNTH_INFO struct synth_info * // I-O
436 0xC0045103 SNDCTL_SEQ_CTRLRATE int * // I-O
437 0x80045104 SNDCTL_SEQ_GETOUTCOUNT int *
438 0x80045105 SNDCTL_SEQ_GETINCOUNT int *
439 0x40045106 SNDCTL_SEQ_PERCMODE void
440 0x40285107 SNDCTL_FM_LOAD_INSTR const struct sbi_instrument *
441 0x40045108 SNDCTL_SEQ_TESTMIDI const int *
442 0x40045109 SNDCTL_SEQ_RESETSAMPLES const int *
443 0x8004510A SNDCTL_SEQ_NRSYNTHS int *
444 0x8004510B SNDCTL_SEQ_NRMIDIS int *
445 0xC074510C SNDCTL_MIDI_INFO struct midi_info * // I-O
446 0x4004510D SNDCTL_SEQ_THRESHOLD const int *
447 0xC004510E SNDCTL_SYNTH_MEMAVL int * // I-O
448 0x4004510F SNDCTL_FM_4OP_ENABLE const int *
449 0xCFB85110 SNDCTL_PMGR_ACCESS struct patmgr_info * // I-O
450 0x00005111 SNDCTL_SEQ_PANIC void
451 0x40085112 SNDCTL_SEQ_OUTOFBAND const struct seq_event_rec *
452 0xC0045401 SNDCTL_TMR_TIMEBASE int * // I-O
453 0x00005402 SNDCTL_TMR_START void
454 0x00005403 SNDCTL_TMR_STOP void
455 0x00005404 SNDCTL_TMR_CONTINUE void
456 0xC0045405 SNDCTL_TMR_TEMPO int * // I-O
457 0xC0045406 SNDCTL_TMR_SOURCE int * // I-O
458 0x40045407 SNDCTL_TMR_METRONOME const int *
459 0x40045408 SNDCTL_TMR_SELECT int * // I-O
460 0xCFB85001 SNDCTL_PMGR_IFACE struct patmgr_info * // I-O
461 0xC0046D00 SNDCTL_MIDI_PRETIME int * // I-O
462 0xC0046D01 SNDCTL_MIDI_MPUMODE const int *
463 0xC0216D02 SNDCTL_MIDI_MPUCMD struct mpu_command_rec * // I-O
464 0x00005000 SNDCTL_DSP_RESET void
465 0x00005001 SNDCTL_DSP_SYNC void
466 0xC0045002 SNDCTL_DSP_SPEED int * // I-O
467 0xC0045003 SNDCTL_DSP_STEREO int * // I-O
468 0xC0045004 SNDCTL_DSP_GETBLKSIZE int * // I-O
469 0xC0045006 SOUND_PCM_WRITE_CHANNELS int * // I-O
470 0xC0045007 SOUND_PCM_WRITE_FILTER int * // I-O
471 0x00005008 SNDCTL_DSP_POST void
472 0xC0045009 SNDCTL_DSP_SUBDIVIDE int * // I-O
473 0xC004500A SNDCTL_DSP_SETFRAGMENT int * // I-O
474 0x8004500B SNDCTL_DSP_GETFMTS int *
475 0xC0045005 SNDCTL_DSP_SETFMT int * // I-O
476 0x800C500C SNDCTL_DSP_GETOSPACE struct audio_buf_info *
477 0x800C500D SNDCTL_DSP_GETISPACE struct audio_buf_info *
478 0x0000500E SNDCTL_DSP_NONBLOCK void
479 0x80045002 SOUND_PCM_READ_RATE int *
480 0x80045006 SOUND_PCM_READ_CHANNELS int *
481 0x80045005 SOUND_PCM_READ_BITS int *
482 0x80045007 SOUND_PCM_READ_FILTER int *
483 0x00004300 SNDCTL_COPR_RESET void
484 0xCFB04301 SNDCTL_COPR_LOAD const struct copr_buffer *
485 0xC0144302 SNDCTL_COPR_RDATA struct copr_debug_buf * // I-O
486 0xC0144303 SNDCTL_COPR_RCODE struct copr_debug_buf * // I-O
487 0x40144304 SNDCTL_COPR_WDATA const struct copr_debug_buf *
488 0x40144305 SNDCTL_COPR_WCODE const struct copr_debug_buf *
489 0xC0144306 SNDCTL_COPR_RUN struct copr_debug_buf * // I-O
490 0xC0144307 SNDCTL_COPR_HALT struct copr_debug_buf * // I-O
491 0x4FA44308 SNDCTL_COPR_SENDMSG const struct copr_msg *
492 0x8FA44309 SNDCTL_COPR_RCVMSG struct copr_msg *
493 0x80044D00 SOUND_MIXER_READ_VOLUME int *
494 0x80044D01 SOUND_MIXER_READ_BASS int *
495 0x80044D02 SOUND_MIXER_READ_TREBLE int *
496 0x80044D03 SOUND_MIXER_READ_SYNTH int *
497 0x80044D04 SOUND_MIXER_READ_PCM int *
498 0x80044D05 SOUND_MIXER_READ_SPEAKER int *
499 0x80044D06 SOUND_MIXER_READ_LINE int *
500 0x80044D07 SOUND_MIXER_READ_MIC int *
501 0x80044D08 SOUND_MIXER_READ_CD int *
502 0x80044D09 SOUND_MIXER_READ_IMIX int *
503 0x80044D0A SOUND_MIXER_READ_ALTPCM int *
504 0x80044D0B SOUND_MIXER_READ_RECLEV int *
505 0x80044D0C SOUND_MIXER_READ_IGAIN int *
506 0x80044D0D SOUND_MIXER_READ_OGAIN int *
507 0x80044D0E SOUND_MIXER_READ_LINE1 int *
508 0x80044D0F SOUND_MIXER_READ_LINE2 int *
509 0x80044D10 SOUND_MIXER_READ_LINE3 int *
510 0x80044D1C SOUND_MIXER_READ_MUTE int *
511 0x80044D1D SOUND_MIXER_READ_ENHANCE int *
512 0x80044D1E SOUND_MIXER_READ_LOUD int *
513 0x80044DFF SOUND_MIXER_READ_RECSRC int *
514 0x80044DFE SOUND_MIXER_READ_DEVMASK int *
515 0x80044DFD SOUND_MIXER_READ_RECMASK int *
516 0x80044DFB SOUND_MIXER_READ_STEREODEVS int *
517 0x80044DFC SOUND_MIXER_READ_CAPS int *
518 0xC0044D00 SOUND_MIXER_WRITE_VOLUME int * // I-O
519 0xC0044D01 SOUND_MIXER_WRITE_BASS int * // I-O
520 0xC0044D02 SOUND_MIXER_WRITE_TREBLE int * // I-O
521 0xC0044D03 SOUND_MIXER_WRITE_SYNTH int * // I-O
522 0xC0044D04 SOUND_MIXER_WRITE_PCM int * // I-O
523 0xC0044D05 SOUND_MIXER_WRITE_SPEAKER int * // I-O
524 0xC0044D06 SOUND_MIXER_WRITE_LINE int * // I-O
525 0xC0044D07 SOUND_MIXER_WRITE_MIC int * // I-O
526 0xC0044D08 SOUND_MIXER_WRITE_CD int * // I-O
527 0xC0044D09 SOUND_MIXER_WRITE_IMIX int * // I-O
528 0xC0044D0A SOUND_MIXER_WRITE_ALTPCM int * // I-O
529 0xC0044D0B SOUND_MIXER_WRITE_RECLEV int * // I-O
530 0xC0044D0C SOUND_MIXER_WRITE_IGAIN int * // I-O
531 0xC0044D0D SOUND_MIXER_WRITE_OGAIN int * // I-O
532 0xC0044D0E SOUND_MIXER_WRITE_LINE1 int * // I-O
533 0xC0044D0F SOUND_MIXER_WRITE_LINE2 int * // I-O
534 0xC0044D10 SOUND_MIXER_WRITE_LINE3 int * // I-O
535 0xC0044D1C SOUND_MIXER_WRITE_MUTE int * // I-O
536 0xC0044D1D SOUND_MIXER_WRITE_ENHANCE int * // I-O
537 0xC0044D1E SOUND_MIXER_WRITE_LOUD int * // I-O
538 0xC0044DFF SOUND_MIXER_WRITE_RECSRC int * // I-O
540 // <include/linux/umsdos_fs.h>
541 0x000004D2 UMSDOS_READDIR_DOS struct umsdos_ioctl * // I-O
542 0x000004D3 UMSDOS_UNLINK_DOS const struct umsdos_ioctl *
543 0x000004D4 UMSDOS_RMDIR_DOS const struct umsdos_ioctl *
544 0x000004D5 UMSDOS_STAT_DOS struct umsdos_ioctl * // I-O
545 0x000004D6 UMSDOS_CREAT_EMD const struct umsdos_ioctl *
546 0x000004D7 UMSDOS_UNLINK_EMD const struct umsdos_ioctl *
547 0x000004D8 UMSDOS_READDIR_EMD struct umsdos_ioctl * // I-O
548 0x000004D9 UMSDOS_GETVERSION struct umsdos_ioctl *
549 0x000004DA UMSDOS_INIT_EMD void
550 0x000004DB UMSDOS_DOS_SETUP const struct umsdos_ioctl *
551 0x000004DC UMSDOS_RENAME_DOS const struct umsdos_ioctl *
553 // <include/linux/vt.h>
554 0x00005600 VT_OPENQRY int *
555 0x00005601 VT_GETMODE struct vt_mode *
556 0x00005602 VT_SETMODE const struct vt_mode *
557 0x00005603 VT_GETSTATE struct vt_stat *
558 0x00005604 VT_SENDSIG void
559 0x00005605 VT_RELDISP int
560 0x00005606 VT_ACTIVATE int
561 0x00005607 VT_WAITACTIVE int
562 0x00005608 VT_DISALLOCATE int
563 0x00005609 VT_RESIZE const struct vt_sizes *
564 0x0000560A VT_RESIZEX const struct vt_consize *
569 Some ioctl's take a pointer to a structure which contains additional
570 pointers. These are documented here in alphabetical order.
572 CDROMREADAUDIO takes an input pointer 'const struct cdrom_read_audio *'.
573 The 'buf' field points to an output buffer
574 of length 'nframes * CD_FRAMESIZE_RAW'.
576 CDROMREADCOOKED, CDROMREADMODE1, CDROMREADMODE2, and CDROMREADRAW take
577 an input pointer 'const struct cdrom_msf *'. They use the same pointer
578 as an output pointer to 'char []'. The length varies by request. For
579 CDROMREADMODE1, most drivers use 'CD_FRAMESIZE', but the Optics Storage
580 driver uses 'OPT_BLOCKSIZE' instead (both have the numerical value
583 CDROMREADCOOKED char [CD_FRAMESIZE]
584 CDROMREADMODE1 char [CD_FRAMESIZE or OPT_BLOCKSIZE]
585 CDROMREADMODE2 char [CD_FRAMESIZE_RAW0]
586 CDROMREADRAW char [CD_FRAMESIZE_RAW]
588 EQL_ENSLAVE, EQL_EMANCIPATE, EQL_GETSLAVECFG, EQL_SETSLAVECFG,
589 EQL_GETMASTERCFG, and EQL_SETMASTERCFG take a 'struct ifreq *'.
590 The 'ifr_data' field is a pointer to another structure as follows:
592 EQL_ENSLAVE const struct slaving_request *
593 EQL_EMANCIPATE const struct slaving_request *
594 EQL_GETSLAVECFG struct slave_config * // I-O
595 EQL_SETSLAVECFG const struct slave_config *
596 EQL_GETMASTERCFG struct master_config *
597 EQL_SETMASTERCFG const struct master_config *
599 FDRAWCMD takes a 'struct floppy raw_cmd *'. If 'flags & FD_RAW_WRITE'
600 is non-zero, then 'data' points to an input buffer of length 'length'.
601 If 'flags & FD_RAW_READ' is non-zero, then 'data' points to an output
602 buffer of length 'length'.
604 GIO_FONTX and PIO_FONTX take a 'struct console_font_desc *' or
605 a 'const struct console_font_desc *', respectively. 'chardata' points to
606 a buffer of 'char [charcount]'. This is an output buffer for GIO_FONTX
607 and an input buffer for PIO_FONTX.
609 GIO_UNIMAP and PIO_UNIMAP take a 'struct unimapdesc *' or
610 a 'const struct unimapdesc *', respectively. 'entries' points to a buffer
611 of 'struct unipair [entry_ct]'. This is an output buffer for GIO_UNIMAP
612 and an input buffer for PIO_UNIMAP.
614 KDADDIO, KDDELIO, KDDISABIO, and KDENABIO enable or disable access to
615 I/O ports. They are essentially alternate interfaces to 'ioperm'.
617 KDMAPDISP and KDUNMAPDISP enable or disable memory mappings or I/O port
618 access. They are not implemented in the kernel.
620 SCSI_IOCTL_PROBE_HOST takes an input pointer 'const int *', which is a
621 length. It uses the same pointer as an output pointer to a 'char []'
622 buffer of this length.
624 SIOCADDRT and SIOCDELRT take an input pointer whose type depends on
627 Most protocols const struct rtentry *
628 AX.25 const struct ax25_route *
629 NET/ROM const struct nr_route_struct *
631 SIOCGIFCONF takes a 'struct ifconf *'. The 'ifc_buf' field points to a
632 buffer of length 'ifc_len' bytes, into which the kernel writes a list of
633 type 'struct ifreq []'.
635 SIOCSIFHWADDR takes an input pointer whose type depends on the protocol:
637 Most protocols const struct ifreq *
638 AX.25 const char [AX25_ADDR_LEN]
640 TIOCLINUX takes a 'const char *'. It uses this to distinguish several
641 independent sub-cases. In the table below, 'N + foo' means 'foo' after
642 an N-byte pad. 'struct selection' is implicitly defined
643 in 'drivers/char/selection.c'
645 TIOCLINUX-2 1 + const struct selection *
648 TIOCLINUX-5 4 + const struct { long [8]; } *
651 TIOCLINUX-10 1 + const char *
656 This list does not include ioctls in the range SIOCDEVPRIVATE and
659 0x00000001 FDSETPRM FIBMAP
660 0x00000002 FDDEFPRM FIGETBSZ
661 0x00005382 CDROMAUDIOBUFSIZ SCSI_IOCTL_GET_IDLUN
662 0x00005402 SNDCTL_TMR_START TCSETS
663 0x00005403 SNDCTL_TMR_STOP TCSETSW
664 0x00005404 SNDCTL_TMR_CONTINUE TCSETSF
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