Also other prefixes occur, see below . 1.4 Ordinary scancodes The scancodes in scancode set 2 are given in hex. Between parentheses the keycap on a US keyboard. 56 mostly on non-US keyboards. It is often an unlabelled key to the left or to the right of the left Alt key.
Assignment is essentially random.
59 - 5c occur on the RC930 keyboard. Scancodes 61 - 64 occur on a Telerate keyboard. 7c , 7e occur on the Focus 9000 keyboard. Often, the codes are chosen in such a way that something meaningful happens when the receiver just discards the e0 . Other escaped scancodes occur - see below under the individual keyboards.