DESCRIPTION
The
kbd driver provides an interface to the workstation console keyboard. “type 2”, “type 3”, “type 4”, and “type 5” keyboards are supported. The “type 5” keyboard is treated as if it were a “type 4”. All types generate keycodes encoding the key identity and motion (up or down) as the keys are pressed and released. The
kbd driver either passes the keycodes to an application as they come in, or translates them into ASCII characters first according to a set of built-in tables.
If the keyboard is configured as the device to be used for system console input, it will be internally connected to the /dev/console device special file, which can be used as a tty(4) device.
The device special file /dev/kbd is used to get direct access to the keyboard input stream. The following ioctl's are supported (mostly just enough to keep the X(1) server going):
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KIOCTRANS
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Set translation mode. The argument is of type int *, the only value supported is TR_UNTRANS_EVENT.
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KIOCGTRANS
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Get translation mode. The argument is of type int *. TR_UNTRANS_EVENT is always returned.
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KIOCGETKEY
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Fill in old-style key station translation. The argument is of type struct okiockey *.
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KIOCCMD
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Send a command to the keyboard. The argument is of type int *, and can have one of the following values:
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KBD_CMD_BELL
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Start the keyboard beeper.
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KBD_CMD_NOBELL
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Stop the keyboard beeper.
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KBD_CMD_CLICK
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Instruct the keyboard to make extra noise when touching keys.
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KBD_CMD_NOCLICK
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Instruct the keyboard to stop making extra noise when touching keys.
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KIOCTYPE
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Get keyboard type. The argument is of type int *, in which one of the values KB_SUN2, KB_SUN3 or KB_SUN4 will be returned.
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KIOCSDIRECT
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Route the keyboard input stream through the SunOS compatible event module. The argument is of type int *, a non-zero value will put the driver into “event” mode, while a value of zero will make it return to “ASCII translation” mode.
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KIOCSKEY
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Set key station translation. The argument is of type struct kiockey * (see /usr/include/machine/kbio.h for more details).
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KIOCGKEY
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Get key station translation. The argument is of type struct kiockey *.
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KIOCLAYOUT
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Get keyboard layout (“type 4” only). The argument is of type int *, in which the uninterpreted result of the KBD_CMD_GLAYOUT keyboard command is returned (on KBDUN4 type keyboards this will be the setting of a DIP switch bank).
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KIOCSLED
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Set LED state (“type 4” only). The argument is of type char *, and is the inclusive OR of the following flags:
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LED_NUM_LOCK
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LED_COMPOSE
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LED_SCROLL_LOCK
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LED_CAPS_LOCK
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Each of these flags turn on the LED in the obvious key.
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KIOCGLED
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Get LED state (“type 4” only). The argument is of type char *, in which the current LED state is returned.