78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
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/*++
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Copyright (c) 1989-1999 Microsoft Corporation
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Module Name:
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latency.h
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Abstract:
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The header file containing information needed by both the
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user mode and kernel mode of the latency filter driver.
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Author:
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Molly Brown (mollybro)
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Environment:
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Kernel mode
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--*/
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#ifndef __LATENCY_H__
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#define __LATENCY_H__
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//
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// Enable these warnings in the code.
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//
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#pragma warning(error:4100) // Unreferenced formal parameter
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#pragma warning(error:4101) // Unreferenced local variable
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#define LATENCY_Reset (ULONG) CTL_CODE( FILE_DEVICE_DISK_FILE_SYSTEM, 0x00, METHOD_BUFFERED, FILE_WRITE_ACCESS )
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#define LATENCY_EnableLatency (ULONG) CTL_CODE( FILE_DEVICE_DISK_FILE_SYSTEM, 0x01, METHOD_BUFFERED, FILE_READ_ACCESS )
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#define LATENCY_DisableLatency (ULONG) CTL_CODE( FILE_DEVICE_DISK_FILE_SYSTEM, 0x02, METHOD_BUFFERED, FILE_READ_ACCESS )
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#define LATENCY_GetLog (ULONG) CTL_CODE( FILE_DEVICE_DISK_FILE_SYSTEM, 0x03, METHOD_BUFFERED, FILE_READ_ACCESS )
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#define LATENCY_GetVer (ULONG) CTL_CODE( FILE_DEVICE_DISK_FILE_SYSTEM, 0x04, METHOD_BUFFERED, FILE_READ_ACCESS )
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#define LATENCY_ListDevices (ULONG) CTL_CODE( FILE_DEVICE_DISK_FILE_SYSTEM, 0x05, METHOD_BUFFERED, FILE_READ_ACCESS )
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#define LATENCY_SetLatency (ULONG) CTL_CODE( FILE_DEVICE_DISK_FILE_SYSTEM, 0x06, METHOD_BUFFERED, FILE_READ_ACCESS )
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#define LATENCY_ClearLatency (ULONG) CTL_CODE( FILE_DEVICE_DISK_FILE_SYSTEM, 0x07, METHOD_BUFFERED, FILE_READ_ACCESS )
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#define LATENCY_DRIVER_NAME L"LATENCY.SYS"
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#define LATENCY_DEVICE_NAME L"LatencyFilter"
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#define LATENCY_W32_DEVICE_NAME L"\\\\.\\LatencyFilter"
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#define LATENCY_DOSDEVICE_NAME L"\\DosDevices\\LatencyFilter"
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#define LATENCY_FULLDEVICE_NAME L"\\Device\\LatencyFilter"
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#define LATENCY_MAJ_VERSION 1
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#define LATENCY_MIN_VERSION 0
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typedef struct _LATENCYVER {
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USHORT Major;
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USHORT Minor;
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} LATENCYVER, *PLATENCYVER;
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typedef struct _LATENCY_ENABLE_DISABLE {
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UNICODE_STRING DeviceName;
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UCHAR DeviceNameBuffer[];
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} LATENCY_ENABLE_DISABLE, *PLATENCY_ENABLE_DISABLE;
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typedef struct _LATENCY_SET_CLEAR {
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UCHAR IrpCode;
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ULONG Milliseconds;
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UNICODE_STRING DeviceName;
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UCHAR DeviceNameBuffer[];
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} LATENCY_SET_CLEAR, *PLATENCY_SET_CLEAR;
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#define LATENCY_ATTACH_ALL_VOLUMES 1
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#define LATENCY_ATTACH_ON_DEMAND 0
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#endif /* __LATENCY_H__ */
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