MAKEDEV(1M) MAKEDEV(1M)
NAME
MAKEDEV - Create device special files
SYNOPSIS
/dev/MAKEDEV [target] [parameter=val]
DESCRIPTION
MAKEDEV creates specified device files in the current directory; it is
primarily used for constructing the /dev directory. It is a "makefile"
processed by the make command. Its arguments can be either targets in
the file or assignments overriding parameters defined in the file. The
targets .I alldevs and owners are assumed if no other targets are present
(see below).
All devices are created relative to the current directory, so this
command is normally executed from /dev. In order to create the devices
successfully, you must be the superuser.
The following are some of the arguments that are recognized by MAKEDEV.
For a complete list you may need to examine the script
ttys Creates tty (controlling terminal interface) files for CPU
serial ports. In addition, creates special files for console,
syscon, systty, keybd, mouse, dials, and tablet. See duart(7),
console(7), keyboard(7), mouse(7), pckeyboard(7), and
pcmouse(7) for details.
cdsio Creates additional tty files enabled by using the Central Data
serial board.
pty Creates special files to support "pseudo terminals". This
target makes a small number of files, with more created as
needed by programs using them. Additional pty files can be
made for older programs not using library functions to
allocate ptys by using the parameter override MAXPTY=100, or
any other number between 1 and 199. See pty(7M) for details.
ips Creates special files for ESDI disks connected to an
Interphase ESDI disk controller. See ips(7M) for details.
ipi Creates special files for IPI disks connected to a XYLOGICS
IPI disk controller. See ipi(7M) for details.
dks Creates special files for SCSI disks. See dksc(7M) for
details.
rad Creates special files for SCSI attached RAID disks. See
raid(1M) and usraid(7M) for details.
fds Creates special files for SCSI floppy drives. See smfd(7M)
for details.
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MAKEDEV(1M) MAKEDEV(1M)
xyl Creates special files for SMD disks connected to a Xylogics
SMD disk controller. See xyl(7M) for details.
qictape Creates special files for 1/4-inch cartridge tape drives
connected to an ISI QIC-O2 tape controller. See ts(7M) for
details.
usrvme Creates special files for user level VME bus adapter
interfaces. See usrvme(7M) for details.
usrdma Creates special files for user level access to DMA engines.
See usrdma(7M) for details.
tps Creates special files for SCSI tape drives. See tps(7M) for
details.
magtape Creates special files for 1/2-inch tape drives connected to a
Xylogics Model 772 tape controller. See xmt(7M) for details.
ikon Creates special files for hardcopy devices connected to an
Ikon 10088 (or 10088A) printer controller. This includes
Versatec TTL and Versatec differential compatible devices, as
well as (Tektronix-compatible) Centronics printers. See ik(7)
for details.
gpib Creates special files for the National Instruments GPIB-1014
controller and associated devices. See gpib(7) for details.
hl Creates special files for the hardware spinlock driver to use
in process synchronization (IRIS-4D/GTX models only).
t3270 Creates the special files for the IBM 3270 interface
controller.
gse Creates the special files for the IBM 5080 interface
controller.
dn_ll Creates the special file for the 4DDN logical link driver.
dn_netman Creates the special file for the 4DDN network management
driver.
audio Creates the special file for the bi-directional audio channel
interface for the IRIS-4D/20 series. See audio(7) for
details.
plp Creates the special file for the parallel printer interface
for the IRIS-4D/20 series. See plp(7) for details.
ei Creates the special file for the Challenge/Onyx external
interrupt interface. See ei(7) for details.
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MAKEDEV(1M) MAKEDEV(1M)
generic Creates miscellaneous, commonly used devices: tty, the
controlling terminal device; mem, kmem, mmem, and null, the
memory devices; prf, the kernel profiling interface; tport,
the texport interface; shmiq, the event queue interface; gfx,
graphics, the graphics device interfaces; and zero, a source
of zeroed unnamed memory. See tty(7), mem(7), prf(7), and
zero(7) for details concerning some of these respective
devices.
links This option does both disk and tape
disk This option creates all the disk device special files for the
dks ips ipi and xyl drives, and then creates links by which
one can conveniently reference them without knowing the
configuration of the particular machine. The links root,
rroot, swap, rswap, usr, rusr, vh and rvh are created to
reference the current root, swap, usr and volume header
partitions.
tape This option creates all the tps and xmt tape devices, then
makes links to tape, nrtape, tapens, and nrtapens for the
first tape drive found, if one exists. It first checks for
xmt, then for SCSI in descending target ID order.
mindevs This option is shorthand for creating the generic, links, pty,
ttys, gro, and grin device files.
alldevs This option creates all of the device special files listed
above.
owners This option changes the owner and group of the files in the
current directory to the desired default state.
onlylinks This option does only the link portion of disk and tape above,
in case a different disk is used as root, or a different tape
drive is used.
BUGS
The links made for /dev/usr and /dev/rusr always point to partition 6 of
the root drive. While this is the most common convention, it is not
invariable.
If a system has been reconfigured with the /usr filesystem in some place
other than this default, by specifying the device in /etc/fstab, see
fstab(4), the /dev/usr and /dev/rusr devices will NOT point to the device
holding the real /usr filesystem.
SEE ALSO
mknod(1M) make(1) install(1)