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# Device Abstraction Layer (DAL) Plug-Ins

API reference for legacy DAL plug-ins.

## Topics

### Reference

[DAL plug-in structures](/documentation/CoreMediaIO/core-media-i-o-structures)

[DAL plug-in functions](/documentation/CoreMediaIO/core-media-i-o-functions)

[DAL plug-in enumerations](/documentation/CoreMediaIO/core-media-i-o-enumerations)

[DAL plug-in data types](/documentation/CoreMediaIO/core-media-i-o-data-types)

[DAL plug-in errors](/documentation/CoreMediaIO/core-media-i-o-errors)


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