ableos/sysdata/programs/ps2_driver/README.md
2024-11-17 21:30:58 +01:00

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# Unified PS/2 Driver
Te entire thing is heavily documented with comments because I'm not sure how else to make this understandable.
## !!Assumptions!!
Anyone who works on this should work to keep this list as small as possible/remove as many of these as possible.
- Bit 5 of the response form 0x64 indicates which port the data is coming from. (Not true on all systems)
- A parity or timeout error never occurs.
- PS/2 controller exists.
- Both PS/2 ports being broken doesn't need handling.
- One PS/2 port being broken doesn't need special attention.
- PS/2 controller doesn't need to perform a self-check.
- These DeviceIDs never exist:
- 0xFFFD
- 0xFFFE
- 0xFFFF
- 0x01xx
- 0x03xx
- 0x04xx