DEVICE_TRIM_DESCRIPTOR - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// ntddstor.h
typedef struct _DEVICE_TRIM_DESCRIPTOR {
ULONG Version;
ULONG Size;
BOOLEAN TrimEnabled;
} DEVICE_TRIM_DESCRIPTOR, *PDEVICE_TRIM_DESCRIPTOR;
View the official Windows Driver Kit DDI reference// winioctl.h
typedef struct _DEVICE_TRIM_DESCRIPTOR {
DWORD Version;
DWORD Size;
BOOLEAN TrimEnabled;
} DEVICE_TRIM_DESCRIPTOR, *PDEVICE_TRIM_DESCRIPTOR;
View the official Win32 API referenceNo description available.
The DEVICE_TRIM_DESCRIPTOR structure is used in conjunction with the IOCTL_STORAGE_QUERY_PROPERTY request to retrieve the trim descriptor data for a device.
VersionContains the size of the structure DEVICE_TRIM_DESCRIPTOR. The value of this member will change as members are added to the structure.
SizeSpecifies the total size of the descriptor, in bytes.
TrimEnabledSpecifies whether trim is enabled for the device.
Storage class drivers issue a device-control request with the I/O control code IOCTL_STORAGE_QUERY_PROPERTY to retrieve this structure, which contains trim information for the device. The structure can be retrieved either from the device object for the bus or from an FDO, which forwards the request to the underlying bus.
Used in conjunction with the IOCTL_STORAGE_QUERY_PROPERTY request to retrieve the trim descriptor data for a device.
VersionContains the size of this structure, in bytes. The value of this member will change as members are added to the structure.
SizeSpecifies the total size of the data returned, in bytes. This may include data that follows this structure.
TrimEnabledSpecifies whether trim is enabled for the device.