UKBD(4) BSD Kernel Interfaces Manual UKBD(4)
ukbd -- USB keyboard support
ukbd* at uhidev?
wskbd* at ukbd?
The ukbd driver provides support for USB keyboards i.e. HID devices in
the ``keyboard'' class. Access to the keyboard is through the wskbd(4)
The ukbd driver supports a number of different key mappings which can be
chosen from with the kernel option ``UKBD_LAYOUT'' at compile time or
with the utility wsconsctl(8) (variable: ``keyboard.encoding'') at run-
time. Other mappings can be used if the whole keymap is replaced by
means of wsconsctl(8). The built-in mappings are at this time:
KB_BE (be) Belgium French.
KB_BR (br) Brazilian.
KB_CF (cf) Canadian French.
KB_DE (de) German with ``dead accents''.
KB_DK (dk) Danish with ``dead accents''.
KB_ES (es) Spanish.
KB_FR (fr) French.
KB_FR | KB_APPLE
(fr.apple) French for Apple black USB keyboards.
KB_FR | KB_DVORAK
(fr.dvorak) French keyboard with ``Dvorak-Bepo'' layout.
KB_HU (hu) Hungarian.
KB_IS (is) Icelandic with ``dead accents''.
KB_IT (it) Italian.
KB_JP (jp) Japanese.
KB_LA (la) Latinamerican.
KB_LT (lt) Lithuanian in ``ISO 8859-13''.
KB_LV (lv) Latvian
KB_NL (nl) Dutch with ``dead accents''.
KB_NO (no) Norwegian with ``dead accents''.
KB_PL (pl) Polish in ``ISO 8859-2''.
KB_PT (pt) Portuguese.
KB_PT | KB_APPLE
(pt.apple) Portuguese for Apple black USB keyboards.
KB_RU (ru) Russian in ``KOI8''.
KB_SF (sf) Swiss French with ``dead accents''.
KB_SG (sg) Swiss German with ``dead accents''.
KB_SI (si) Slovenian.
KB_SV (sv) Swedish with ``dead accents''.
KB_TR (tr) Turkish in ``ISO 8859-9'' with ``dead accents''.
KB_UA (ua) Ukrainian in ``KOI8''.
KB_UK (uk) British.
KB_US (us) English/US keyboard mapping (default).
KB_US | KB_DVORAK
(us.dvorak) English/US keyboard with ``Dvorak'' layout.
The KB_DE, KB_DK, KB_IS, KB_NO, KB_SF, KB_SG, KB_SV and KB_TR mappings
can be used in the KB_NODEAD (.nodead) variant. This switches off the
The KB_BE, KB_FR, KB_FR | KB_APPLE, KB_FR | KB_DVORAK, KB_JP, KB_UK,
KB_US and KB_US | KB_DVORAK mappings can be modified to swap the left
Control and the Caps Lock keys by the KB_SWAPCTRLCAPS variant bit or the
The KB_METAESC (.metaesc) option can be applied to any layout. If set,
keys pressed together with the ALT modifier are prefixed by an ESC char-
acter. (Standard behaviour is to add 128 to the ASCII value.)
To set a German keyboard layout without ``dead accents'' and sending an
ESC character before the key symbol if the ALT key is pressed simultane-
ously, use wsconsctl keyboard.encoding=de.nodead.metaesc. To set it at
kernel build time, add the following to the kernel configuration file:
usbhidctl(1), intro(4), uhidev(4), usb(4), wskbd(4), wsconsctl(8)
The ukbd driver appeared in NetBSD 1.4. OpenBSD support was added in
The ukbd driver is brought into action rather late in the boot process,
so if it is used as the console driver then ddb(4) is not usable until
late in the boot.
The list of built-in mappings doesn't follow any logic. It grew as peo-
ple submitted what they needed.
BSD March 28, 2017 BSD