vt1200/reference/keyboard-mouse/elkay/host/linux/xkb/rules/evdev at 97dbea7fedb04dbbc4b92eb7ef7065a4b09f2fbd - vt1200 - Gitea: Git with a cup of tea

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SDD 3fd1e13b2e docs: keyboard/mouse protocol spec — LK401 (LK201 protocol) + VSXXX-AA mouse, sources, MAME lk201 device

Distils public docs into reference/keyboard-mouse/PROTOCOL.md for the level-1
Keyboard (27) / Mouse (26) device tests:
- keyboard: 4800 8N1 RS-423, self-test via FD -> 01 00 00 00 (errors 3D/3E)
- mouse: 4800 8O1 RS-232, self-test via 'T' -> 4-byte report (errors 3D/3E, >=0x20 fatal)
- separate ports: DUART2 A=keyboard, B=mouse (NOT daisy-chained)
MAME already has an LK201 device (src/mame/dec/lk201.cpp/.h) but no DEC mouse.

2026-10-16 11:38:52 +03:00

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 // elkay: adds the option elkay:fkeys to the system's evdev rules.
 //
 // The include comes first: rules apply in file order, and the option has to
 // land after the base layout's inet(evdev) symbols to override them.
 ! include %S/evdev
 ! option = symbols
   elkay:fkeys = +elkay(fkeys)