related scancodes, and apart from the key up/down bit,
the stream of scancodes consists of unescaped
scancodes xx (7 bits) and escaped scancodes e0 xx (8+7 bits).
-It is hardwired in the current kernel that in the range 1-88
-(0x01-0x58) keycode equals scancode. For the remaining scancodes
-(0x59-0x7f) or scancode pairs (0xe0 0x00 - 0xe0 0x7f) a
-corresponding keycode can be assigned (in the range 1-127).
+To these scancodes or scancode pairs, a corresponding keycode can be
+assigned (in the range 1-127).
For example, if you have a Macro key that produces e0 6f according
to showkey(1), the command
.RS
.RE
will assign the keycode 112 to it, and then loadkeys(1) can be used
to define the function of this key.
+.LP
+Some older kernels might hardwire a low scancode range to the
+equivalent keycodes; setkeycodes will fail when you try to remap
+these.
.SH "2.6 KERNELS"
In 2.6 kernels key codes lie in the range 1-255, instead of 1-127.