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Apple Developer Docs

BlockStorageDeviceDriverKit / DeviceParams / maxIOSize

Contents

Declaration
See Also

maxIOSize

The maximum amount of data per I/O call.

Declaration

uint32_t maxIOSize;

See Also

Accessing Device Parameters

numOfBlocks
blockSize
numOfOutstandingIOs
maxNumOfUnmapRegions
minSegmentAlignment
numOfAddressBits
isUnmapSupported
isFUASupported

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BlockStorageDeviceDriverKitInstance Property

driverkit 21.0+

Declaration
See Also

Built on 2026-11-01 · Snapshot snapshot-20261101 (macOS 27.0.1) · Commit 864a336 · by @g-cqd · based on Apple Developer Documentation