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FS_BPIO_INFO structure (ntifs.h)

  • Article

The FS_BPIO_INFO structure provides information about the BypassIO state of the volume.

Syntax

typedef struct _FS_BPIO_INFO {
  ULONG  ActiveBypassIoCount;
  USHORT StorageDriverNameLen;
  WCHAR  StorageDriverName[32];
} FS_BPIO_INFO, *PFS_BPIO_INFO;

Members

ActiveBypassIoCount

The number of BypassIO-enabled files that are currently open.

StorageDriverNameLen

Receives the length of the string stored in StorageDriverName, in characters.

StorageDriverName[32]

Receives a string that specifies the name of the storage driver for this volume.

Remarks

FS_BPIO_INFO is returned when the requested BypassIO operation is FS_BPIO_OP_GET_INFO, and in the FS_BPIO_OPERATIONS structure when the requested BypassIO operation is FS_BPIO_OP_ENABLE or FS_BPIO_OP_QUERY.

See BypassIO for filter drivers and Supporting BypassIO operations for more information.

Requirements

Requirement Value
Minimum supported client Windows 11
Header ntifs.h

See also

FS_BPIO_OPERATIONS

FS_BPIO_OUTPUT

FSCTL_MANAGE_BYPASS_IO