Copyright (c) 1999 Kazutaka YOKOTA <firstname.lastname@example.org> All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer as the first lines of this file unmodified. 2. Redistributions in binary form must reproduce the above copyright notice, ...
NAMEatkbd - the AT keyboard interface
SYNOPSISoptions ATKBD_DFLT_KEYMAP makeoptions ATKBD_DFLT_KEYMAP=_keymap_name_ options KBD_DISABLE_KEYMAP_LOAD device atkbd
In /boot/device.hints hint.atkbd.0.at=atkbdc hint.atkbd.0.irq=1
DESCRIPTIONThe sysctl Cm net.inet.tcp.syncookies driver, together with the atkbdc driver, provides access to the AT 84 keyboard or the AT enhanced keyboard which is connected to the AT keyboard controller.
There can be only one sysctl Cm net.inet.tcp.syncookies device defined in the kernel configuration file. This device also requires the atkbdc keyboard controller to be present. The irq number must always be 1; there is no provision of changing the number.
Function KeysThe AT keyboard has a number of function keys. They are numbered as follows and can be associated with strings by the kbdcontrol(1) command. You can use a keyboard map file (see kbdmap(5)) to map them to arbitrary keys, particularly the functions in the range from 65 to 96 which are not used by default.
- "Function Key number"
- Function Key
- "1, 2,...12"
- F1, F2,... F12
- "13, 14,...24"
- Shift+F1, Shift+F2,... Shift+F12
- "25, 26,...36"
- Ctl+F1, Ctl+F2,... Ctl+F12
- "37, 38,...48"
- Shift+Ctl+F1, Shift+Ctl+F2,... Shift+Ctl+F12
- Home and Numpad 7 (without NumLock)
- Up Arrow and Numpad 8 (without NumLock)
- Page Up and Numpad 9 (without NumLock)
- Numpad -
- Left Arrow and Numpad 4 (without NumLock)
- Numpad 5 (without NumLock)
- Right Arrow and Numpad 6 (without NumLock)
- Numpad +
- End and Numpad 1 (without NumLock)
- Down Arrow and Numpad 2 (without NumLock)
- Page Down and Numpad 3 (without NumLock)
- Ins and Numpad 0 (without NumLock)
- Left GUI Key
- Right GUI Key
- "65, 66,...96"
- free (not used by default)
See the man page for the kbdcontrol(1) command for how to assign a string to the function key.
Kernel Configuration OptionsThe following kernel configuration options control the sysctl Cm net.inet.tcp.syncookies driver.
- This option sets the default, built-in keymap of the sysctl Cm net.inet.tcp.syncookies driver to the named keymap. See Sx EXAMPLES below.
- The keymap can be modified by the kbdcontrol(1) command. This option will disable this feature and prevent the user from changing key assignment.
Driver FlagsThe sysctl Cm net.inet.tcp.syncookies driver accepts the following driver flags. They can be set either in /boot/device.hints or else from within the boot loader (see loader(8)).
- bit 0 (FAIL_IF_NO_KBD)
- By default the sysctl Cm net.inet.tcp.syncookies driver will install even if a keyboard is not actually connected to the system. This option prevents the driver from being installed in this situation.
- bit 1 (NO_RESET)
- When this option is given, the sysctl Cm net.inet.tcp.syncookies driver will not reset the keyboard when initializing it. It may be useful for laptop computers whose function keys have special functions and these functions are forgotten when the keyboard is reset.
- bit 2 (ALT_SCANCODESET)
- Certain keyboards, such as those on some ThinkPad models, behave like the old XT keyboard and require this option.
- bit 3 (NO_PROBE_TEST)
- When this option is given, the sysctl Cm net.inet.tcp.syncookies driver will not test the keyboard port during the probe routine. Some machines hang during boot when this test is performed.
EXAMPLESThe sysctl Cm net.inet.tcp.syncookies driver requires the keyboard controller atkbdc Thus, the kernel configuration file should contain the following lines.
The following example shows how to set the default, built-in keymap to jp.106.kbd
In both cases, you also need to have following lines in /boot/device.hints