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       ioctl_list - list of ioctl calls in Linux/i386 kernel


       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.


       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              int
       0x00001263   BLKRAGET              int *
       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)

       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/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/linux/sockios.h>

       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)

       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.

       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).

           CDROMREADMODE2     char [CD_FRAMESIZE_RAW0]
           CDROMREADRAW       char [CD_FRAMESIZE_RAW]

       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
       0x00005402   SNDCTL_TMR_START      TCSETS
       0x00005403   SNDCTL_TMR_STOP       TCSETSW
       0x00005404   SNDCTL_TMR_CONTINUE   TCSETSF


       ioctl(2), ioctl_fat(2)


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