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# ACPI-specific documentation

This section contains documentation about coreboot on ACPI. coreboot dropped
backwards support for ACPI 1.0 and is only compatible to ACPI version 2.0 and
upwards.


```{toctree}
:maxdepth: 1

SSDT UID generation <uid.md>
```

## GPIO

```{toctree}
:maxdepth: 1

GPIO toggling in ACPI AML <gpio.md>
```

## Windows-specific ACPI documentation

```{toctree}
:maxdepth: 1

Windows-specific documentation <windows.md>
```

##  ACPI specification - Useful links

- [ACPI Specification 6.5](https://uefi.org/specs/ACPI/6.5/index.html)
- [ASL 2.0 Syntax](https://uefi.org/specs/ACPI/6.5/19_ASL_Reference.html#asl-2-0-symbolic-operators-and-expressions)
- [Predefined ACPI Names](https://uefi.org/specs/ACPI/6.5/05_ACPI_Software_Programming_Model.html#predefined-acpi-names)