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The WRITE_CACHE_CHANGE enumeration indicates whether the write cache features of a device are changeable or not.
Syntax
typedef enum _WRITE_CACHE_CHANGE {
WriteCacheChangeUnknown,
WriteCacheNotChangeable,
WriteCacheChangeable
} WRITE_CACHE_CHANGE;
Constants
WriteCacheChangeUnknownThe system cannot report the write cache change capability of the device. |
WriteCacheNotChangeableHost software cannot change the characteristics of the device's write cache. |
WriteCacheChangeableHost software can change the characteristics of the device's write cache. |
Remarks
The IOCTL_STORAGE_QUERY_PROPERTY request reports a WRITE_CACHE_CHANGE value in the STORAGE_WRITE_CACHE_PROPERTY structure.
Requirements
| Requirement | Value |
|---|---|
| Header | ntddstor.h |