Keyboard scancodes

Andries Brouwer, aeb@cwi.nl

1. Keyboard scancodes

• 1.1 Key release
• 1.2 Protocol scancodes
• 1.3 Escape scancodes
• 1.4 Ordinary scancodes
• 1.5 Escaped scancodes
• 1.6 Fake shifts
• 1.7 Added non-fake shifts
• 1.8 Turbo Mode
• 1.9 Power Saving
• 1.10 Initializing special keyboards
• 1.11 Manipulating extra LEDs

2. Special keyboards - XT keyboards

• 2.1 XT keyboard
• 2.2 Victor keyboard
• 2.3 Telerate keyboard
• 2.4 NCR keyboard
• 2.5 Cherry G80-0777

3. Special keyboards - Amstrad/Schneider keyboards

• 3.1 Amstrad/Schneider PC1512

4. Special keyboards - AT keyboards

5. Special keyboards - MF II keyboards

• 5.1 Compaq keyboards
• 5.2 IBM keyboards
• 5.3 Logitech keyboards
• 5.4 Microsoft keyboards
• 5.5 Safeway keyboards
• 5.6 Nokia keyboard
• 5.7 Focus KeyPro FK-9000 keyboard
• 5.8 BTC keyboard
• 5.9 LK411 and LK450 keyboards
• 5.10 OmniKey keyboard
• 5.11 GRiD 2260 keyboard
• 5.12 An old Olivetti keyboard
• 5.13 Cherry G81-3000
• 5.14 Accord keyboard
• 5.15 Trust Ergonomic keyboard
• 5.16 Brazilian keyboards
• 5.17 RC930 keyboard
• 5.18 Tandberg Data keyboard
• 5.19 Host Connected keyboard
• 5.20 A Chinese keyboard
• 5.21 A nameless USB keyboard
• 5.22 Omnibook keyboard
• 5.23 EZ Button keyboard
• 5.24 Chicony KBP-8993 keyboard
• 5.25 Keyboards for HP Kayak and Vectra
• 5.26 A keyboard
• 5.27 Yahoo! keyboard
• 5.28 Honeywell Multimedia Keyboard
• 5.29 Samsung Ergonomics Keyboard
• 5.30 The "LiteOn MediaTouch Keyboard" type SK-2500
• 5.31 Keyboards with many keys
• 5.32 A keyboard treating PrtSc/SysRq like Pause/Break

6. Japanese keyboards

• 6.1 Japanese 86/106 keyboards
• 6.2 Description of the all-Japanese keys
• 6.3 A keyboard using e0 as ordinary scancode

7. Keyboard-internal scancodes

• 7.1 Three scancode sets
• 7.2 Make and Break codes
• 7.3 Translation
• 7.4 Use

8. The AT keyboard controller

• 8.1 The keyboard controller status register
• 8.2 The keyboard controller command byte
• 8.3 Keyboard controller commands
• 8.4 The input port P1
• 8.5 The output port P2
• 8.6 The test port T

9. USB

10. Reporting