// ntddscsi.h

typedef struct _NTSCSI_UNICODE_STRING {
  USHORT Length;
  USHORT MaximumLength;
#if ...
  USHORT *Buffer;
#else
  PWCH   Buffer;
#endif
} NTSCSI_UNICODE_STRING;
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Windows Driver Kit DDI reference (ns-ntddscsi-ntscsi_unicode_string)

NTSCSI_UNICODE_STRING structure

Description

Storage port drivers can use the NTSCSI_UNICODE_STRING structure to define Unicode strings.

Members

`Length`

Length, in bytes, of the string stored in Buffer.

`MaximumLength`

Total length, in bytes, of memory allocated for Buffer.

`Buffer`

Pointer to a buffer used to contain a string of wide characters.

Remarks

If the string is null-terminated, Length does not include the trailing null character.

MaximumLength is used to indicate the length of Buffer so that if the string is passed to a conversion routine, the returned string does not exceed the buffer size.

NTSCSI_UNICODE_STRING - NtDoc