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WRITE_CACHE_CHANGE enumeration

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  = 0,
  WriteCacheNotChangeable  = 1,
  WriteCacheChangeable     = 2
} 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

Header

Ntddstor.h (include Ntddstor.h)

See also

IOCTL_STORAGE_QUERY_PROPERTY
STORAGE_WRITE_CACHE_PROPERTY

 

 

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