_IOR
#define DIOCGPROVIDERNAME _IOR('d', 138, char[MAXPATHLEN])
#define DIOCGSTRIPESIZE _IOR('d', 139, off_t) /* Get stripe size in bytes */
#define DIOCGSTRIPEOFFSET _IOR('d', 140, off_t) /* Get stripe offset in bytes */
#define DIOCGPHYSPATH _IOR('d', 141, char[MAXPATHLEN])
#define DIOCGSECTORSIZE _IOR('d', 128, u_int)
#define DIOCGMEDIASIZE _IOR('d', 129, uint64_t) /* Get media size in bytes */
#define DIOCGFWSECTORS _IOR('d', 130, u_int) /* Get firmware's sectorcount */
#define DIOCGFWHEADS _IOR('d', 131, u_int) /* Get firmware's headcount */
#define DIOCGFRONTSTUFF _IOR('d', 134, off_t)
#define DIOCGIDENT _IOR('d', 137, char[DISK_IDENT_SIZE])
#define ZFS_IOC_FSGETXATTR _IOR('X', 31, zfsxattr_t)
#define BIOCGBLEN _IOR(B,102, u_int)
#define BIOCGDLT _IOR(B,106, u_int)
#define BIOCGETIF _IOR(B,107, struct ifreq)
#define BIOCGRTIMEOUT _IOR(B,110, struct timeval)
#define BIOCGSTATS _IOR(B,111, struct bpf_stat)
#define BIOCVERSION _IOR(B,113, struct bpf_version)
#define BIOCGBLEN _IOR('B',102, u_int)
#define BIOCGDLT _IOR('B',106, u_int)
#define BIOCGETIF _IOR('B',107, struct ifreq)
#define BIOCGRTIMEOUT _IOR('B',110, struct timeval)
#define BIOCGSTATS _IOR('B',111, struct bpf_stat)
#define BIOCVERSION _IOR('B',113, struct bpf_version)
# define SIOCGETFF _IOR('r', 63, u_int)
# define SIOCIPFFB _IOR('r', 66, int)
# define SIOCSWAPA _IOR('r', 69, u_int)
# define SIOCGETFF _IOR(r, 63, u_int)
# define SIOCIPFFB _IOR(r, 66, int)
# define SIOCSWAPA _IOR(r, 69, u_int)
#define BIOCGBLEN _IOR('B', 102, uint_t)
#define BIOCGDLT _IOR('B', 106, uint_t)
#define BIOCGETIF _IOR('B', 107, struct ifreq)
#define BIOCGETLIF _IOR('B', 107, struct lifreq)
#define BIOCGSTATS _IOR('B', 111, struct bpf_stat)
#define BIOCGSTATSOLD _IOR('B', 111, struct bpf_stat_old)
#define BIOCVERSION _IOR('B', 113, struct bpf_version)
#define BIOCGHDRCMPLT _IOR('B', 116, uint_t)
#define BIOCGSEESENT _IOR('B', 120, uint_t)
#define BIOCGRTIMEOUT _IOR('B', 123, struct timeval)
#define BIOCGRTIMEOUT32 _IOR('B', 123, struct timeval32)
#define PE_READ_REG _IOR('i', 0xAB, 0x18)
#define PE_READ_PCI _IOR('i', 0xAC, 0x18)
#define PE_READ_INTR _IOR('i', 0xAD, 0x20)
#define TOETOOL_GETTPI _IOR('i', 0xAE, 0xc)
#define AUDIO_GETINFO _IOR('A', 1, audio_info_t)
#define AUDIO_GETDEV _IOR('A', 4, audio_device_t)
#define BPPIOC_GETPARMS _IOR('b', 2, struct bpp_transfer_parms)
#define BPPIOC_GETOUTPINS _IOR('b', 4, struct bpp_pins)
#define BPPIOC_GETERR _IOR('b', 5, struct bpp_error_status)
#define FIONREAD _IOR('f', 127, int) /* get # bytes to read */
#define FIOGETOWN _IOR('f', 123, int) /* get owner */
#define IPMICTL_GET_MY_ADDRESS_CMD _IOR(IPMI_IOC_MAGIC, 18, unsigned int)
#define IPMICTL_GET_MY_LUN_CMD _IOR(IPMI_IOC_MAGIC, 20, unsigned int)
#define LOMIOCPSUSTATE _IOR('a', 21, lom_psudata_t)
#define LOMIOCEVENTLOG _IOR('a', 22, lom_eventlog_t)
#define LOMIOCFANSTATE _IOR('a', 23, lom_fandata_t)
#define LOMIOCFLEDSTATE _IOR('a', 24, lom_fled_info_t)
#define LOMIOCINFO _IOR('a', 25, lom_info_t)
#define LOMIOCMREAD _IOR('a', 33, lom_mprog_t)
#define LOMIOCLEDSTATE _IOR('a', 34, lom_led_state_t)
#define TSIOCNBMON _IOR('a', 1, int)
#define TSIOCGETMASK _IOR('a', 3, int)
#define LOMIOCVOLTS _IOR('a', 41, lom_volts_t)
#define LOMIOCSTATS _IOR('a', 42, lom_sflags_t)
#define LOMIOCTEMP _IOR('a', 43, lom_temp_t)
#define LOMIOCCONS _IOR('a', 44, lom_cbuf_t)
#define TSIOCDOGSTATE _IOR('a', 6, ts_dogstate_t)
#define LOMIOCMREAD2 _IOR('a', 49, lom2_mprog_t)
#define PRNIOC_GET_IFCAP _IOR(PRNIOC, 90, uint_t)
#define PRNIOC_SET_IFCAP _IOR(PRNIOC, 91, uint_t)
#define PRNIOC_GET_STATUS _IOR(PRNIOC, 93, uint_t)
#define PRNIOC_GET_1284_STATUS _IOR(PRNIOC, 95, uchar_t)
#define PRNIOC_GET_TIMEOUTS _IOR(PRNIOC, 96, struct prn_timeouts)
#define TIOCISPACE _IOR('t', 128, int) /* space left in input queue */
#define TIOCISIZE _IOR('t', 129, int) /* size of input queue */
#define TIOCGSIZE _IOR('t', 38, struct ttysize) /* get tty size */
#define SIOCGETNAME _IOR('s', 52, struct sockaddr) /* getsockname */
#define SIOCGETPEER _IOR('s', 53, struct sockaddr) /* getpeername */
#define SIOCGIFNUM _IOR('i', 87, int) /* get number of ifs */
#define SIOCGHIWAT _IOR('s', 1, int) /* get high watermark */
#define SIOCGLOWAT _IOR('s', 3, int) /* get low watermark */
#define SIOCATMARK _IOR('s', 7, int) /* at oob mark? */
#define SIOCGPGRP _IOR('s', 9, int) /* get process group */
#define EVTIOCGVERSION _IOR('E', 0x1, int)
#define EVTIOCGDEVID _IOR('E', 0x2, struct event_dev_id)
#define EVTIOCGABS(i) _IOR('E', 0x40 + (i), struct event_abs_axis)
#define VIDIOC_QUERYCAP _IOR('V', 0, struct v4l2_capability)
#define VIDIOC_G_MPEGCOMP _IOR('V', 6, struct v4l2_mpeg_compression)
#define VIDIOC_G_FBUF _IOR('V', 10, struct v4l2_framebuffer)
#define VIDIOC_G_STD _IOR('V', 23, v4l2_std_id)
#define VIDIOC_G_AUDIO _IOR('V', 33, struct v4l2_audio)
#define VIDIOC_G_INPUT _IOR('V', 38, int)
#define VIDIOC_G_OUTPUT _IOR('V', 46, int)
#define VIDIOC_G_AUDOUT _IOR('V', 49, struct v4l2_audioout)
#define VIDIOC_G_JPEGCOMP _IOR('V', 61, struct v4l2_jpegcompression)
#define VIDIOC_QUERYSTD _IOR('V', 63, v4l2_std_id)
#define VIDIOC_G_PRIORITY _IOR('V', 67, enum v4l2_priority)
#define VIDIOC_G_SLICED_VBI_CAP _IOR('V', 69, struct v4l2_sliced_vbi_cap)
#define VIDIOC_CROPCAP_OLD _IOR('V', 58, struct v4l2_cropcap)
#define ECPPIOC_GETREGS _IOR('p', 74, struct ecpp_regs)
#define ECPPIOC_GETPORT _IOR('p', 78, uchar_t)
#define ECPPIOC_GETDATA _IOR('p', 80, uchar_t)
#define ECPPIOC_GETPARMS _IOR('p', 71, struct ecpp_transfer_parms)
#define NTWDTIOCPANIC _IOR('a', 0xb, uint32_t)
#define LOMIOCFLEDSTATE _IOR('a', 24, lom_fled_info_t)
#define LOMIOCINFO _IOR('a', 25, lom_info_t)
#define LOMIOCMREAD _IOR('a', 33, lom_mprog_t)
#define TSIOCDOGSTATE _IOR('a', 6, ts_dogstate_t)
#define ENVCTRL_IOC_GETFAN (int)(_IOR('p', 81, struct envctrl_tda8444t_chip))
#define ENVCTRL_IOC_GETTEMP (int)(_IOR('p', 82, struct envctrl_pcf8591_chip))
#define ENVCTRL_IOC_GETFANFAIL (int)(_IOR('p', 83, struct envctrl_pcf8574_chip))
#define ENVCTRL_IOC_GETDSKLED (int)(_IOR('p', 86, struct envctrl_pcf8574_chip))
#define ENVCTRL_IOC_GETMODE (int)(_IOR('p', 87, uchar_t))
#define ENVCTRL_IOC_GETFAN (int)(_IOR('p', 81, struct envctrl_tda8444t_chip))
#define ENVCTRL_IOC_GETTEMP (int)(_IOR('p', 82, struct envctrl_pcf8591_chip))
#define ENVCTRL_IOC_GETFANFAIL (int)(_IOR('p', 83, struct envctrl_pcf8574_chip))
#define ENVCTRL_IOC_GETDSKLED (int)(_IOR('p', 86, struct envctrl_pcf8574_chip))
#define ENVCTRL_IOC_GETMODE (int)(_IOR('p', 87, uchar_t))
#define ENVCTRL_IOC_GETFAN2 (int)(_IOR('p', 90, struct envctrl_chip))
#define ENVCTRL_IOC_GETTEMP2 (int)(_IOR('p', 91, struct envctrl_chip))
#define ENVCTRL_IOC_GETFSP2 (int)(_IOR('p', 93, struct envctrl_chip))
#define ENVCTRL_IOC_GETDSKLED2 (int)(_IOR('p', 95, struct envctrl_chip))
#define ENVCTRL_IOC_GETRAW (int)(_IOR('p', 97, struct envctrl_chip))
#define ENVMONIOCSYSINFO _IOR('a', ENVMON_BASE + 0, envmon_sysinfo_t)
#define ENVMONIOCGETKEYSW _IOR('a', ENVMON_BASE + 12, envmon_keysw_pos_t)
_IOR('a', ENVMON_BASE + 15, envmon_chassis_t)
#define LOMIOCDOGSTATE _IOR('a', 6, lom_dogstate_t)