mirror of
https://github.com/ApfelTeeSaft/reactos.git
synced 2026-09-01 19:26:16 +00:00
Cameron Gutman
c2d0d784c7
- Create a branch to do a proper merge of USB work from a trunk base instead of from cmake-bringup - In the future, DO NOT under any circumstances branch another branch. This leads to merge problems! svn path=/branches/usb-bringup-trunk/; revision=55018
93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
/*
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* PROJECT: ReactOS Kernel
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* LICENSE: BSD - See COPYING.ARM in the top level directory
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* FILE: include/reactos/drivers/ntddrdsk.h
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* PURPOSE: Constants and types for accessing the RAM disk device
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* PROGRAMMERS: ReactOS Portable Systems Group
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*/
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#ifndef _NTDDRDSK_H_
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#define _NTDDRDSK_H_
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#if _MSC_VER > 1000
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#pragma once
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#endif
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#ifdef __cplusplus1
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extern "C" {
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#endif
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//
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// This guid identifies a RAM disk volume
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//
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DEFINE_GUID(RAMDISK_BOOTDISK_GUID, 0xd9b257fc, 0x684e, 0x4dcb, 0x79, 0xab, 0xf6, 0xa2, 0xcf, 0x03, 0x50, 0xb7);
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//
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// Device Name - this string is the name of the device. It is the name
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// that should be passed to NtOpenFile when accessing the device.
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//
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// Note: For devices that support multiple units, it should be suffixed
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// with the Ascii representation of the unit number.
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//
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#define DD_RAMDISK_DEVICE_NAME "\\Device\\Ramdisk"
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//
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// IoControlCode values for ramdisk devices.
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//
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#define IOCTL_RAMDISK_BASE FILE_DEVICE_VIRTUAL_DISK
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#define FSCTL_CREATE_RAM_DISK CTL_CODE(FILE_DEVICE_VIRTUAL_DISK, 0x0000, METHOD_BUFFERED, FILE_ANY_ACCESS)
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//
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// Disk Types
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//
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#define RAMDISK_REGISTRY_DISK 1 // Loaded from the registry
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#define RAMDISK_MEMORY_MAPPED_DISK 2 // Loaded from the registry
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#define RAMDISK_BOOT_DISK 3 // Used as a boot device
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#define RAMDISK_WIM_DISK 4 // Used as an installation device
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//
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// Options when creating a ramdisk
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//
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typedef struct _RAMDISK_CREATE_OPTIONS
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{
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ULONG Readonly:1;
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ULONG Fixed:1;
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ULONG NoDriveLetter:1;
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ULONG NoDosDevice:1;
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ULONG Hidden:1;
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ULONG ExportAsCd:1;
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} RAMDISK_CREATE_OPTIONS;
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//
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// This structure is passed in for a FSCTL_CREATE_RAM_DISK call
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//
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typedef struct _RAMDISK_CREATE_INPUT
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{
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ULONG Version;
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GUID DiskGuid;
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ULONG DiskType;
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RAMDISK_CREATE_OPTIONS Options;
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LARGE_INTEGER DiskLength;
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LONG DiskOffset;
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union
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{
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struct
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{
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ULONG ViewCount;
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SIZE_T ViewLength;
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WCHAR FileName[ANYSIZE_ARRAY];
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};
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struct
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{
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ULONG_PTR BasePage;
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WCHAR DriveLetter;
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};
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PVOID BaseAddress;
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};
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} RAMDISK_CREATE_INPUT, *PRAMDISK_CREATE_INPUT;
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#ifdef __cplusplus
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}
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#endif
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#endif // _NTDDRDSK_H_
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