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# DiskArbitration Data Types

## Topics

### Data Types

[`typedef struct __DASession * DAApprovalSessionRef;`](/documentation/DiskArbitration/DAApprovalSessionRef)

[`typealias DADiskClaimOptions`](/documentation/DiskArbitration/DADiskClaimOptions)

Options for DADiskClaim().

[`typealias DADiskEjectOptions`](/documentation/DiskArbitration/DADiskEjectOptions)

Options for DADiskEject().

[`typealias DADiskMountOptions`](/documentation/DiskArbitration/DADiskMountOptions)

Options for DADiskMount().

[`typealias DADiskOptions`](/documentation/DiskArbitration/DADiskOptions)

Options for DADiskGetOptions() and DADiskSetOptions().

[`typealias DADiskRenameOptions`](/documentation/DiskArbitration/DADiskRenameOptions)

Options for DADiskRename().

[`typealias DADiskUnmountOptions`](/documentation/DiskArbitration/DADiskUnmountOptions)

Options for DADiskUnmount().

[`typealias DAReturn`](/documentation/DiskArbitration/DAReturn)

A return code.


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