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SETKEYCODES |
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!!!SETKEYCODES |
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NAME |
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SYNOPSIS |
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DESCRIPTION |
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THEORY |
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OPTIONS |
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BUGS |
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SEE ALSO |
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---- |
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!!NAME |
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setkeycodes - load kernel scancode-to-keycode mapping table entries |
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!!SYNOPSIS |
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__setkeycodes__ ''scancode keycode [[scancode keycode ... |
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]'' |
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!!DESCRIPTION |
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The __setkeycodes__ command reads its arguments two at a |
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time, each pair of arguments consisting of a scancode (given |
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in hexadecimal) and a keycode (given in decimal). For each |
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such pair, it tells the kernel keyboard driver to map the |
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specified scancode to the specified keycode. |
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This command is useful only for people with slightly unusual |
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keyboards, that have a few keys which produce scancodes that |
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the kernel does not recognize. |
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!!THEORY |
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The usual PC keyboard produces a series of scancodes for |
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each key press and key release. (Scancodes are shown by |
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__showkey -s__, see showkey(1).) The kernel parses this |
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stream of scancodes, and converts it to a stream of keycodes |
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(key press/release events). (Keycodes are shown by |
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__showkey__.) Apart from a few scancodes with special |
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meaning, and apart from the sequence produced by the Pause |
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key, and apart from shiftstate related scancodes, and apart |
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from the key up/down bit, the stream of scancodes consists |
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of unescaped scancodes xx (7 bits) and escaped scancodes e0 |
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xx (8+7 bits). It is hardwired in the current kernel that in |
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the range 1-88 (0x01-0x58) keycode equals scancode. For the |
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remaining scancodes (0x59-0x7f) or scancode pairs (0xe0 0x00 |
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- 0xe0 0x7f) a corresponding keycode can be assigned (in the |
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range 1-127). For example, if you have a Macro key that |
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produces e0 6f according to showkey(1), the |
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command |
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__setkeycodes__ e06f 112 |
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will assign the keycode 112 to it, and then loadkeys(1) can |
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be used to define the function of this key. |
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!!OPTIONS |
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None. |
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!!BUGS |
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The keycodes of X have nothing to do with those of Linux. |
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Unusual keys can be made visible under Linux, but not under |
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X. |
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!!SEE ALSO |
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dumpkeys(1), loadkeys(1), showkey(1), |
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getkeycodes(8). |
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---- |
