This driver supports PC/AT keyboards within the
wscons(4) console framework. It doesn't provide direct device driver entry points but makes its functions available via the internal
wskbd(4) interface.
The
pckbd driver supports a number of different key mappings which can be chosen from with the kernel option
PCKBD_LAYOUT at compile time or with the utility
wsconsctl(8) (variable: “encoding”) at runtime. Other mappings can be used if the whole keymap is replaced by means of
wsconsctl(8). The builtin mappings are at this time:
option
wsconsctl
language
KB_US
us
English/US keyboard mapping (default)
KB_DE
de
German with “dead accents”
KB_DK
dk
Danish with “dead accents”
KB_SV
sv
Swedish with “dead accents”
KB_US|KB_DECLK
us.declk
English/US mapping for DEC
LK400-style keyboards with PC keyboard
KB_US|KB_DVORAK
us.dvorak
English/US keyboard with
KB_US|KB_COLEMAK
us.colemak
English/US keyboard with
KB_NO
no
Norwegian with “dead accents”
The
KB_DE,
KB_DK,
KB_NO and
KB_SV mappings can be used in the
KB_NODEAD (“.nodead”) variant. This switches off the “dead accents”.
The
KB_US,
KB_JP and
KB_US|KB_DVORAK mappings can be modified to swap the left CTRL and the CAPS LOCK keys by the
KB_SWAPCTRLCAPS variant bit or the “.swapctrlcaps” suffix.
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 character. (Standard behaviour is to add 128 to the ASCII value.)
Because PC keyboard hardware doesn't contain a beeper, requests for “keyboard beeps” cannot be handled directly. On alpha and i386 a helper device attached to the
pcppi(4) driver allows the use of the standard ISA speaker for this purpose. On acorn32,
vidcaudio(4) performs this function.