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AKBD(4)                      Device Drivers Manual                     AKBD(4)

NAME
     akbd - Apple Desktop Bus keyboard driver for wscons

SYNOPSIS
     akbd* at obio?
     wskbd* at akbd? console ?

     options ALTXBUTTONS
     options CAPS_IS_CONTROL
     options FORCE_FUNCTION_KEYS

DESCRIPTION
     This driver provides the wscons(4) driver with support for Apple Desktop
     Bus keyboards.

     options ALTXBUTTONS
                   To map <Option>+<1>, <Option>+<2>, <Option>+<3>, to mouse
                   buttons 1, 2, and 3 respectively.

     options CAPS_IS_CONTROL
                   On macppc systems it is possible to tweak the keyboard
                   driver to treat the caps lock key on an ADB keyboard as a
                   control key.  This requires special remapping because of
                   ADB's strange emulation of a mechanically-locked key.

     options FORCE_FUNCTION_KEYS
                   On macppc PowerBooks, several function keys double as "hot
                   keys" (brightness, volume, eject) when the <Fn> modifier is
                   held down.  Mac OS X likes to reprogram the keyboard
                   controller to send hot key events when <Fn> is not held
                   down and send function key events when it is.  With this
                   option you can transform the non-keyboard "button" events
                   back into function key events.

   Special Keys
     To work around the limited number of buttons found on most ADB mice, the
     following key sequences trigger mouse button events:

     -   <Option>+<LeftArrow> will work as the middle mouse button.
     -   <Option>+<RightArrow> will work as the right mouse button.

     On PowerBook (mac68k) models the following key sequences are also
     significant:

     -   <Option>+<UpArrow> increase screen brightness.
     -   <Option>+<DownArrow> decrease screen brightness.

   Supported Hardware
     NetBSD is known to support the following ADB keyboards:

           ⊕   On-board keyboards on PowerBook models
           ⊕   Apple Standard Keyboard
           ⊕   Apple Keyboard II
           ⊕   Apple Extended Keyboard
           ⊕   Apple Extended Keyboard II
           ⊕   Apple Adjustable Keyboard
           ⊕   Most third-party ADB keyboards are supported

SEE ALSO
     xmodmap(1), adb(4), wscons(4), wskbd(4), wsconsctl(8)

BUGS
     The number pad on extended keyboards does not send out the proper key
     codes for many applications.

     The LEDs on extended keyboards are not functional under NetBSD.

     In X11 with the default key mapping, middle and right mouse button events
     will hold `Meta_L' and this will clobber the intended mouse button.
     <Option> shoud be remapped with xmodmap(1) to the <Command> key:

           remove Mod4 = Super_L
           remove Mod1 = Alt_L
           add Mod1 = Super_L

NetBSD 11.99                   January 20, 2025                   NetBSD 11.99