doUnmap
Delete unused data blocks from the media.
Declaration
virtual IOReturn doUnmap(
IOBlockStorageDeviceExtent *extents,
UInt32extentsCount,
UInt32 options = 0);Parameters
- extents:
List of extents. See IOBlockStorageDeviceExtent. It is legal for the callee to overwrite the contents of this buffer in order to satisfy the request.
- extentsCount:
Number of extents.
See Also
Miscellaneous
doAsyncReadWritedoEjectMediadoFormatMediadoGetFormatCapacitiesdoSynchronizeCachegetAdditionalDeviceInfoStringgetProductStringgetRevisionStringgetVendorStringgetWriteCacheStateinitreportBlockSizereportEjectabilityreportMaxValidBlockreportMediaStatereportRemovabilityreportWriteProtectionrequestIdlesetWriteCacheState