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WRITE_CACHE_CHANGE enumeration (ntddstor.h)

  • Article

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

 
WriteCacheChangeUnknown
The system cannot report the write cache change capability of the device.
WriteCacheNotChangeable
Host software cannot change the characteristics of the device's write cache.
WriteCacheChangeable
Host 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

See also

IOCTL_STORAGE_QUERY_PROPERTY

STORAGE_WRITE_CACHE_PROPERTY