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# IORWLockAssertState

```
typedef enum { ... } IORWLockAssertState;
```

## Topics

### Constants

[`kIORWLockAssertHeld`](/documentation/DriverKit/IORWLockAssertState/kIORWLockAssertHeld)

[`kIORWLockAssertNotHeld`](/documentation/DriverKit/IORWLockAssertState/kIORWLockAssertNotHeld)

[`kIORWLockAssertRead`](/documentation/DriverKit/IORWLockAssertState/kIORWLockAssertRead)

[`kIORWLockAssertWrite`](/documentation/DriverKit/IORWLockAssertState/kIORWLockAssertWrite)


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