// winioctl.h
// CTL_CODE(0x0059, 0x601, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_SCM_PD_FIRMWARE_DOWNLOAD 0x00599804
View the official Win32 API referenceNo description available.
This is previously available to download firmware to an NVDIMM.
IOCTL_DISK_GET_DRIVE_LAYOUT_EX
IOCTL_DISK_GET_PARTITION_INFO_EX