// ntdddisk.h

// CTL_CODE(0x0007, 0x011, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_DISK_CONTROLLER_NUMBER 0x00070044
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (ni-ntdddisk-ioctl_disk_controller_number)

IOCTL_DISK_CONTROLLER_NUMBER IOCTL

Description

Retrieves the controller number and disk number for an IDE disk.

Parameters

Major code

Input buffer

None.

Input buffer length

None.

Output buffer

The buffer at Irp->AssociatedIrp.SystemBuffer contains the DISK_CONTROLLER_NUMBER data.

Output buffer length

Parameters.DeviceIoControl.OutputBufferLength in the IO_STACK_LOCATION structure of the IRP indicates the size, in bytes, of the output buffer, which must be >= sizeof(DISK_CONTROLLER_NUMBER).

Input/output buffer

Input/output buffer length

Status block

The Information field is set to sizeof(DISK_CONTROLLER_NUMBER).

The Status field is set to STATUS_SUCCESS if the operation is successful. One possible status value is STATUS_BUFFER_TOO_SMALL if the output buffer provided by the caller is too small.

IOCTL_DISK_CONTROLLER_NUMBER - NtDoc