CM_INT13_DRIVE_PARAMETER structure (wdm.h)
The CM_INT13_DRIVE_PARAMETER structure defines a device-type-specific data record that is stored in the \Registry\Machine\Hardware\Description tree for a disk controller if the system can collect this information during the boot process.
Syntax
typedef struct _CM_INT13_DRIVE_PARAMETER {
USHORT DriveSelect;
ULONG MaxCylinders;
USHORT SectorsPerTrack;
USHORT MaxHeads;
USHORT NumberDrives;
} CM_INT13_DRIVE_PARAMETER, *PCM_INT13_DRIVE_PARAMETER;
Members
DriveSelect
The drive selected value.
MaxCylinders
The maximum number of cylinders.
SectorsPerTrack
The number of sectors per track.
MaxHeads
The maximum number of heads.
NumberDrives
The number of drives.
Requirements
| Requirement | Value |
|---|---|
| Header | wdm.h (include Wdm.h, Ntddk.h, Ntifs.h) |