blob: 35cf64d4436d0731c4365902a31278dee824f17a [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001Ioctl Numbers
219 October 1999
3Michael Elizabeth Chastain
4<mec@shout.net>
5
6If you are adding new ioctl's to the kernel, you should use the _IO
7macros defined in <linux/ioctl.h>:
8
9 _IO an ioctl with no parameters
10 _IOW an ioctl with write parameters (copy_from_user)
11 _IOR an ioctl with read parameters (copy_to_user)
12 _IOWR an ioctl with both write and read parameters.
13
14'Write' and 'read' are from the user's point of view, just like the
15system calls 'write' and 'read'. For example, a SET_FOO ioctl would
16be _IOW, although the kernel would actually read data from user space;
17a GET_FOO ioctl would be _IOR, although the kernel would actually write
18data to user space.
19
20The first argument to _IO, _IOW, _IOR, or _IOWR is an identifying letter
21or number from the table below. Because of the large number of drivers,
22many drivers share a partial letter with other drivers.
23
24If you are writing a driver for a new device and need a letter, pick an
25unused block with enough room for expansion: 32 to 256 ioctl commands.
26You can register the block by patching this file and submitting the
27patch to Linus Torvalds. Or you can e-mail me at <mec@shout.net> and
28I'll register one for you.
29
30The second argument to _IO, _IOW, _IOR, or _IOWR is a sequence number
31to distinguish ioctls from each other. The third argument to _IOW,
32_IOR, or _IOWR is the type of the data going into the kernel or coming
33out of the kernel (e.g. 'int' or 'struct foo'). NOTE! Do NOT use
34sizeof(arg) as the third argument as this results in your ioctl thinking
35it passes an argument of type size_t.
36
37Some devices use their major number as the identifier; this is OK, as
38long as it is unique. Some devices are irregular and don't follow any
39convention at all.
40
41Following this convention is good because:
42
43(1) Keeping the ioctl's globally unique helps error checking:
44 if a program calls an ioctl on the wrong device, it will get an
45 error rather than some unexpected behaviour.
46
47(2) The 'strace' build procedure automatically finds ioctl numbers
48 defined with _IO, _IOW, _IOR, or _IOWR.
49
50(3) 'strace' can decode numbers back into useful names when the
51 numbers are unique.
52
53(4) People looking for ioctls can grep for them more easily when
54 this convention is used to define the ioctl numbers.
55
56(5) When following the convention, the driver code can use generic
57 code to copy the parameters between user and kernel space.
58
Randy Dunlapcb5a8b22010-01-08 14:42:34 -080059This table lists ioctls visible from user land for Linux/x86. It contains
60most drivers up to 2.6.31, but I know I am missing some. There has been
61no attempt to list non-X86 architectures or ioctls from drivers/staging/.
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
Randy Dunlapcb5a8b22010-01-08 14:42:34 -080063Code Seq#(hex) Include File Comments
Linus Torvalds1da177e2005-04-16 15:20:36 -070064========================================================
650x00 00-1F linux/fs.h conflict!
660x00 00-1F scsi/scsi_ioctl.h conflict!
670x00 00-1F linux/fb.h conflict!
680x00 00-1F linux/wavefront.h conflict!
690x02 all linux/fd.h
700x03 all linux/hdreg.h
Jesper Juhld5298802007-07-15 23:41:42 -0700710x04 D2-DC linux/umsdos_fs.h Dead since 2.6.11, but don't reuse these.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720x06 all linux/lp.h
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800730x09 all linux/raid/md_u.h
740x10 00-0F drivers/char/s390/vmcp.h
Linus Torvalds1da177e2005-04-16 15:20:36 -0700750x12 all linux/fs.h
76 linux/blkpg.h
770x1b all InfiniBand Subsystem <http://www.openib.org/>
780x20 all drivers/cdrom/cm206.h
790x22 all scsi/sg.h
80'#' 00-3F IEEE 1394 Subsystem Block for the entire subsystem
Randy Dunlapcb5a8b22010-01-08 14:42:34 -080081'$' 00-0F linux/perf_counter.h, linux/perf_event.h
Linus Torvalds1da177e2005-04-16 15:20:36 -070082'1' 00-1F <linux/timepps.h> PPS kit from Ulrich Windl
83 <ftp://ftp.de.kernel.org/pub/linux/daemons/ntp/PPS/>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -080084'2' 01-04 linux/i2o.h
85'3' 00-0F drivers/s390/char/raw3270.h conflict!
86'3' 00-1F linux/suspend_ioctls.h conflict!
87 and kernel/power/user.c
Linus Torvalds1da177e2005-04-16 15:20:36 -070088'8' all SNP8023 advanced NIC card
89 <mailto:mcr@solidum.com>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -080090'@' 00-0F linux/radeonfb.h conflict!
91'@' 00-0F drivers/video/aty/aty128fb.c conflict!
92'A' 00-1F linux/apm_bios.h conflict!
93'A' 00-0F linux/agpgart.h conflict!
94 and drivers/char/agp/compat_ioctl.h
95'A' 00-7F sound/asound.h conflict!
96'B' 00-1F linux/cciss_ioctl.h conflict!
97'B' 00-0F include/linux/pmu.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -070098'B' C0-FF advanced bbus
99 <mailto:maassen@uni-freiburg.de>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800100'C' all linux/soundcard.h conflict!
101'C' 01-2F linux/capi.h conflict!
102'C' F0-FF drivers/net/wan/cosa.h conflict!
Randy Dunlap07983f02009-01-06 14:42:41 -0800103'D' all arch/s390/include/asm/dasd.h
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800104'D' 40-5F drivers/scsi/dpt/dtpi_ioctl.h
105'D' 05 drivers/scsi/pmcraid.h
106'E' all linux/input.h conflict!
107'E' 00-0F xen/evtchn.h conflict!
108'F' all linux/fb.h conflict!
109'F' 01-02 drivers/scsi/pmcraid.h conflict!
110'F' 20 drivers/video/fsl-diu-fb.h conflict!
111'F' 20 drivers/video/intelfb/intelfb.h conflict!
112'F' 20 linux/ivtvfb.h conflict!
113'F' 20 linux/matroxfb.h conflict!
114'F' 20 drivers/video/aty/atyfb_base.c conflict!
115'F' 00-0F video/da8xx-fb.h conflict!
116'F' 80-8F linux/arcfb.h conflict!
117'F' DD video/sstfb.h conflict!
118'G' 00-3F drivers/misc/sgi-gru/grulib.h conflict!
119'G' 00-0F linux/gigaset_dev.h conflict!
120'H' 00-7F linux/hiddev.h conflict!
121'H' 00-0F linux/hidraw.h conflict!
122'H' 00-0F sound/asound.h conflict!
123'H' 20-40 sound/asound_fm.h conflict!
124'H' 80-8F sound/sfnt_info.h conflict!
125'H' 10-8F sound/emu10k1.h conflict!
126'H' 10-1F sound/sb16_csp.h conflict!
127'H' 10-1F sound/hda_hwdep.h conflict!
128'H' 40-4F sound/hdspm.h conflict!
129'H' 40-4F sound/hdsp.h conflict!
130'H' 90 sound/usb/usx2y/usb_stream.h
131'H' C0-F0 net/bluetooth/hci.h conflict!
132'H' C0-DF net/bluetooth/hidp/hidp.h conflict!
133'H' C0-DF net/bluetooth/cmtp/cmtp.h conflict!
134'H' C0-DF net/bluetooth/bnep/bnep.h conflict!
135'I' all linux/isdn.h conflict!
136'I' 00-0F drivers/isdn/divert/isdn_divert.h conflict!
137'I' 40-4F linux/mISDNif.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138'J' 00-1F drivers/scsi/gdth_ioctl.h
139'K' all linux/kd.h
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800140'L' 00-1F linux/loop.h conflict!
141'L' 10-1F drivers/scsi/mpt2sas/mpt2sas_ctl.h conflict!
142'L' 20-2F linux/usb/vstusb.h
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143'L' E0-FF linux/ppdd.h encrypted disk device driver
144 <http://linux01.gwdg.de/~alatham/ppdd.html>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800145'M' all linux/soundcard.h conflict!
146'M' 01-16 mtd/mtd-abi.h conflict!
147 and drivers/mtd/mtdchar.c
148'M' 01-03 drivers/scsi/megaraid/megaraid_sas.h
149'M' 00-0F drivers/video/fsl-diu-fb.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150'N' 00-1F drivers/usb/scanner.h
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800151'O' 00-06 mtd/ubi-user.h UBI
152'P' all linux/soundcard.h conflict!
153'P' 60-6F sound/sscape_ioctl.h conflict!
154'P' 00-0F drivers/usb/class/usblp.c conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155'Q' all linux/soundcard.h
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800156'R' 00-1F linux/random.h conflict!
157'R' 01 linux/rfkill.h conflict!
158'R' 01-0F media/rds.h conflict!
159'R' C0-DF net/bluetooth/rfcomm.h
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160'S' all linux/cdrom.h conflict!
161'S' 80-81 scsi/scsi_ioctl.h conflict!
162'S' 82-FF scsi/scsi.h conflict!
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800163'S' 00-7F sound/asequencer.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164'T' all linux/soundcard.h conflict!
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800165'T' 00-AF sound/asound.h conflict!
Randy Dunlap07983f02009-01-06 14:42:41 -0800166'T' all arch/x86/include/asm/ioctls.h conflict!
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800167'T' C0-DF linux/if_tun.h conflict!
168'U' all sound/asound.h conflict!
169'U' 00-0F drivers/media/video/uvc/uvcvideo.h conflict!
170'U' 00-CF linux/uinput.h conflict!
171'U' 00-EF linux/usbdevice_fs.h
172'U' C0-CF drivers/bluetooth/hci_uart.h
173'V' all linux/vt.h conflict!
174'V' all linux/videodev2.h conflict!
175'V' C0 linux/ivtvfb.h conflict!
176'V' C0 linux/ivtv.h conflict!
177'V' C0 media/davinci/vpfe_capture.h conflict!
178'V' C0 media/si4713.h conflict!
179'V' C0-CF drivers/media/video/mxb.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180'W' 00-1F linux/watchdog.h conflict!
181'W' 00-1F linux/wanrouter.h conflict!
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800182'W' 00-3F sound/asound.h conflict!
183'X' all fs/xfs/xfs_fs.h conflict!
184 and fs/xfs/linux-2.6/xfs_ioctl32.h
185 and include/linux/falloc.h
186 and linux/fs.h
187'X' all fs/ocfs2/ocfs_fs.h conflict!
188'X' 01 linux/pktcdvd.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189'Y' all linux/cyclades.h
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800190'Z' 14-15 drivers/message/fusion/mptctl.h
191'[' 00-07 linux/usb/tmc.h USB Test and Measurement Devices
Greg Kroah-Hartman5b775f62008-08-26 16:22:06 -0700192 <mailto:gregkh@suse.de>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800193'a' all linux/atm*.h, linux/sonet.h ATM on linux
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 <http://lrcwww.epfl.ch/linux-atm/magic.html>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800195'b' 00-FF conflict! bit3 vme host bridge
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 <mailto:natalia@nikhefk.nikhef.nl>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800197'b' 00-0F media/bt819.h conflict!
198'c' all linux/cm4000_cs.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199'c' 00-7F linux/comstats.h conflict!
200'c' 00-7F linux/coda.h conflict!
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800201'c' 00-1F linux/chio.h conflict!
202'c' 80-9F arch/s390/include/asm/chsc.h conflict!
203'c' A0-AF arch/x86/include/asm/msr.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204'd' 00-FF linux/char/drm/drm/h conflict!
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800205'd' 02-40 pcmcia/ds.h conflict!
206'd' 10-3F drivers/media/video/dabusb.h conflict!
207'd' C0-CF drivers/media/video/saa7191.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208'd' F0-FF linux/digi1.h
209'e' all linux/digi1.h conflict!
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800210'e' 00-1F drivers/net/irda/irtty-sir.h conflict!
211'f' 00-1F linux/ext2_fs.h conflict!
212'f' 00-1F linux/ext3_fs.h conflict!
213'f' 00-0F fs/jfs/jfs_dinode.h conflict!
214'f' 00-0F fs/ext4/ext4.h conflict!
215'f' 00-0F linux/fs.h conflict!
216'f' 00-0F fs/ocfs2/ocfs2_fs.h conflict!
217'g' 00-0F linux/usb/gadgetfs.h
218'g' 20-2F linux/usb/g_printer.h
219'h' 00-7F conflict! Charon filesystem
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220 <mailto:zapman@interlan.net>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800221'h' 00-1F linux/hpet.h conflict!
222'i' 00-3F linux/i2o-dev.h conflict!
223'i' 0B-1F linux/ipmi.h conflict!
224'i' 80-8F linux/i8k.h
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225'j' 00-3F linux/joystick.h
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800226'k' 00-0F linux/spi/spidev.h conflict!
227'k' 00-05 video/kyro.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228'l' 00-3F linux/tcfs_fs.h transparent cryptographic file system
229 <http://mikonos.dia.unisa.it/tcfs>
230'l' 40-7F linux/udf_fs_i.h in development:
Randy Dunlap98766fb2005-11-21 21:32:31 -0800231 <http://sourceforge.net/projects/linux-udf/>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800232'm' 00-09 linux/mmtimer.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233'm' all linux/mtio.h conflict!
234'm' all linux/soundcard.h conflict!
235'm' all linux/synclink.h conflict!
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800236'm' 00-19 drivers/message/fusion/mptctl.h conflict!
237'm' 00 drivers/scsi/megaraid/megaraid_ioctl.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238'm' 00-1F net/irda/irmod.h conflict!
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800239'n' 00-7F linux/ncp_fs.h and fs/ncpfs/ioctl.c
Ryusuke Konishi1392e3b2009-08-08 17:52:50 +0900240'n' 80-8F linux/nilfs2_fs.h NILFS2
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800241'n' E0-FF linux/matroxfb.h matroxfb
Tao Ma7f68fc22007-12-18 15:46:37 +0800242'o' 00-1F fs/ocfs2/ocfs2_fs.h OCFS2
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800243'o' 00-03 mtd/ubi-user.h conflict! (OCFS2 and UBI overlaps)
244'o' 40-41 mtd/ubi-user.h UBI
245'o' 01-A1 linux/dvb/*.h DVB
Jiri Slabycef2cf02007-05-08 00:31:45 -0700246'p' 00-0F linux/phantom.h conflict! (OpenHaptics needs this)
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800247'p' 00-1F linux/rtc.h conflict!
Jiri Slabycef2cf02007-05-08 00:31:45 -0700248'p' 00-3F linux/mc146818rtc.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249'p' 40-7F linux/nvram.h
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800250'p' 80-9F linux/ppdev.h user-space parport
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 <mailto:tim@cyberelk.net>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800252'p' A1-A4 linux/pps.h LinuxPPS
Rodolfo Giomettieae9d2b2009-06-17 16:28:37 -0700253 <mailto:giometti@linux.it>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254'q' 00-1F linux/serio.h
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800255'q' 80-FF linux/telephony.h Internet PhoneJACK, Internet LineJACK
256 linux/ixjuser.h <http://www.quicknet.net>
257'r' 00-1F linux/msdos_fs.h and fs/fat/dir.c
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258's' all linux/cdk.h
259't' 00-7F linux/if_ppp.h
260't' 80-8F linux/isdn_ppp.h
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800261't' 90 linux/toshiba.h
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262'u' 00-1F linux/smb_fs.h
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263'v' all linux/videodev.h conflict!
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800264'v' 00-1F linux/ext2_fs.h conflict!
265'v' 00-1F linux/fs.h conflict!
266'v' 00-0F linux/sonypi.h conflict!
267'v' C0-CF drivers/media/video/ov511.h conflict!
268'v' C0-DF media/pwc-ioctl.h conflict!
269'v' C0-FF linux/meye.h conflict!
270'v' C0-CF drivers/media/video/zoran/zoran.h conflict!
271'v' D0-DF drivers/media/video/cpia2/cpia2dev.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272'w' all CERN SCI driver
273'y' 00-1F packet based user level communications
274 <mailto:zapman@interlan.net>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800275'z' 00-3F CAN bus card conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276 <mailto:hdstich@connectu.ulm.circular.de>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800277'z' 40-7F CAN bus card conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278 <mailto:oe@port.de>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800279'z' 10-4F drivers/s390/crypto/zcrypt_api.h conflict!
Linus Torvalds1da177e2005-04-16 15:20:36 -07002800x80 00-1F linux/fb.h
2810x81 00-1F linux/videotext.h
Randy Dunlapcb5a8b22010-01-08 14:42:34 -08002820x88 00-3F media/ovcamchip.h
Randy Dunlap07983f02009-01-06 14:42:41 -08002830x89 00-06 arch/x86/include/asm/sockios.h
Linus Torvalds1da177e2005-04-16 15:20:36 -07002840x89 0B-DF linux/sockios.h
2850x89 E0-EF linux/sockios.h SIOCPROTOPRIVATE range
Randy Dunlapcb5a8b22010-01-08 14:42:34 -08002860x89 E0-EF linux/dn.h PROTOPRIVATE range
Linus Torvalds1da177e2005-04-16 15:20:36 -07002870x89 F0-FF linux/sockios.h SIOCDEVPRIVATE range
2880x8B all linux/wireless.h
2890x8C 00-3F WiNRADiO driver
290 <http://www.proximity.com.au/~brian/winradio/>
2910x90 00 drivers/cdrom/sbpcd.h
Randy Dunlapcb5a8b22010-01-08 14:42:34 -08002920x92 00-0F drivers/usb/mon/mon_bin.c
Linus Torvalds1da177e2005-04-16 15:20:36 -07002930x93 60-7F linux/auto_fs.h
Randy Dunlapcb5a8b22010-01-08 14:42:34 -08002940x94 all fs/btrfs/ioctl.h
Linus Torvalds1da177e2005-04-16 15:20:36 -07002950x99 00-0F 537-Addinboard driver
296 <mailto:buk@buks.ipn.de>
2970xA0 all linux/sdp/sdp.h Industrial Device Project
298 <mailto:kenji@bitgate.com>
2990xA3 80-8F Port ACL in development:
300 <mailto:tlewis@mindspring.com>
3010xA3 90-9F linux/dtlk.h
3020xAB 00-1F linux/nbd.h
3030xAC 00-1F linux/raw.h
3040xAD 00 Netfilter device in development:
Randy Dunlapcb5a8b22010-01-08 14:42:34 -0800305 <mailto:rusty@rustcorp.com.au>
Avi Kivity258ac8e2008-04-06 14:25:46 +03003060xAE all linux/kvm.h Kernel-based Virtual Machine
Amit Shah0aaeb3b2009-08-13 20:05:48 +0530307 <mailto:kvm@vger.kernel.org>
Linus Torvalds1da177e2005-04-16 15:20:36 -07003080xB0 all RATIO devices in development:
309 <mailto:vgo@ratio.de>
3100xB1 00-1F PPPoX <mailto:mostrows@styx.uwaterloo.ca>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -08003110xC0 00-0F linux/usb/iowarrior.h
Linus Torvalds1da177e2005-04-16 15:20:36 -07003120xCB 00-1F CBM serial IEC bus in development:
313 <mailto:michael.klein@puffin.lb.shuttle.de>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -08003140xCD 01 linux/reiserfs_fs.h
3150xCF 02 fs/cifs/ioctl.c
3160xDB 00-0F drivers/char/mwave/mwavepub.h
Linus Torvalds1da177e2005-04-16 15:20:36 -07003170xDD 00-3F ZFCP device driver see drivers/s390/scsi/
318 <mailto:aherrman@de.ibm.com>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -08003190xF3 00-3F drivers/usb/misc/sisusbvga/sisusb.h sisfb (in development)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 <mailto:thomas@winischhofer.net>
Raphael Assenat1ce4d392006-12-08 02:40:37 -08003210xF4 00-1F video/mbxfb.h mbxfb
322 <mailto:raph@8d.com>
Randy Dunlapcb5a8b22010-01-08 14:42:34 -08003230xFD all linux/dm-ioctl.h