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# Memory Map Options

Options that describe how to configure a memory-mapped buffer.

## Topics

### Options

[`kIOMemoryMapFixedAddress`](/documentation/DriverKit/kIOMemoryMapFixedAddress)

The memory maps to a specific address.

[`kIOMemoryMapReadOnly`](/documentation/DriverKit/kIOMemoryMapReadOnly)

The memory maps as read-only.

[`kIOMemoryMapCacheModeDefault`](/documentation/DriverKit/kIOMemoryMapCacheModeDefault)

The memory maps using the default cache mode.

[`kIOMemoryMapCacheModeInhibit`](/documentation/DriverKit/kIOMemoryMapCacheModeInhibit)

The memory maps using the inhibited cache mode.

[`kIOMemoryMapCacheModeCopyback`](/documentation/DriverKit/kIOMemoryMapCacheModeCopyback)

The memory maps using the copy-back cache mode.

[`kIOMemoryMapCacheModeWriteThrough`](/documentation/DriverKit/kIOMemoryMapCacheModeWriteThrough)

The memory maps using the write-through cache mode.


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