OpenBSD manual page server

Manual Page Search Parameters

MAKEDEV(8) System Manager's Manual (amd64) MAKEDEV(8)

MAKEDEVcreate system and device special files

MAKEDEV [name ...]

The shell script MAKEDEV, found in the /dev directory, is used to create various special files. See intro(4) for a more complete discussion of special files.

MAKEDEV takes any number of device names as arguments, where the names are the common abbreviation for the device or group of devices. Files are created in the current working directory.

Where a device name is followed by a star ‘*’, the star must be replaced by a unit number. If units are expected for a device but not provided, MAKEDEV will supply the standard numbers in most cases.

The amd64 supports the following devices:

Special device names

all
Creates special files for all devices on amd64.
ramdisk
Ramdisk kernel devices.
std
Creates the ‘standard’ devices (console, klog, kmem, ksyms, mem, null, stderr, stdin, stdout, tty, zero) which are absolutely necessary for the system to function properly.
local
Creates configuration-specific devices, by invoking the shell file MAKEDEV.local.

cd*
ATAPI and SCSI CD-ROM drives, see cd(4).
fd*
Floppy disk drives (3 1/2", 5 1/4"), see fd(4).
rd*
“rd” pseudo-disks, see rd(4).
sd*
SCSI disks, including flopticals, see sd(4).
vnd*
“file” pseudo-disk devices, see vnd(4).
wd*
“winchester” disk drives (ST506, IDE, ESDI, RLL, ...), see wd(4).

ch*
SCSI media changers, see ch(4).
st*
SCSI tape drives, see st(4).

tty[0-7][0-9a-f]
NS16x50 serial ports, see com(4).
ttyc*
Cyclades serial ports, see cy(4).
ttyVI*
Virtio serial ports, see viocon(4).

ptm
pty master device, see ptm(4).
pty*
Set of 62 master pseudo terminals, see pty(4).
tty*
Set of 62 slave pseudo terminals, see tty(4).

ttyC-J*
wscons display devices, see wsdisplay(4).
wscons
Minimal wscons devices, see wscons(4).
wskbd*
wscons keyboards, see wskbd(4).
wsmux
wscons keyboard/mouse mux devices, see wsmux(4).

wsmouse*
wscons mice, see wsmouse(4).

lpa*
Polled printer port, see lpt(4).
lpt*
IEEE 1284 centronics printer, see lpt(4).

ttyU*
USB serial ports, see ucom(4).
uall
All USB devices, see usb(4).
ugen*
Generic USB devices, see ugen(4).
uhid*
Generic HID devices, see uhid(4).
fido
fido/* nodes, see fido(4).
ujoy
ujoy/* nodes, see ujoy(4).
ulpt*
Printer devices, see ulpt(4).
usb*
Bus control devices used by usbd for attach/detach, see usb(4).

Special purpose devices

apm
Power Management Interface, see apm(4).
audio*
Audio devices, see audio(4).
bio
ioctl tunnel pseudo-device, see bio(4).
bktr*
Video frame grabbers, see bktr(4).
bpf
Berkeley Packet Filter, see bpf(4).
dt
Dynamic Tracer, see dt(4).
diskmap
Disk mapper, see diskmap(4).
dri
Direct Rendering Infrastructure, see drm(4).
efi
EFI runtime services, see efi(4).
fd
fd/* nodes, see fd(4).
fuse
Userland Filesystem, see fuse(4).
gpio*
General Purpose Input/Output, see gpio(4).
hotplug
devices hot plugging, see hotplug(4).
ipmi*
IPMI BMC access, see ipmi(4).
nvram
NVRAM access, see nvram(4).
kcov
Kernel code coverage tracing, see kcov(4).
pci*
PCI bus devices, see pci(4).
pctr*
PC Performance Tuning Register access device, see pctr(4).
pf
Packet Filter, see pf(4).
pppx*
PPP Multiplexer, see pppx(4).
pppac*
PPP Access Concentrator, see pppac(4).
radio*
FM tuner devices, see radio(4).
*random
In-kernel random data source, see random(4).
rmidi*
Raw MIDI devices, see midi(4).
speaker
PC speaker, see spkr(4).
tun*
Network tunnel driver, see tun(4).
tap*
Ethernet tunnel driver, see tap(4).
tuner*
Tuner devices, see bktr(4).
uk*
Unknown SCSI devices, see uk(4).
video*
Video V4L2 devices, see video(4).
vmm
Virtual Machine Monitor, see vmm(4).
vscsi*
Virtual SCSI controller, see vscsi(4).
pvbus*
paravirtual device tree root, see pvbus(4).
kstat
Kernel Statistics, see kstat(4).

/dev
The special file directory.

intro(4), config(8), mknod(8)

January 14, 2023 OpenBSD-7.4