// ntddcdrm.h
typedef struct _CDROM_WRITE_SPEED_REQUEST {
CDROM_PERFORMANCE_REQUEST_TYPE RequestType;
} CDROM_WRITE_SPEED_REQUEST, *PCDROM_WRITE_SPEED_REQUEST;
View the official Windows Driver Kit DDI referenceNo description available.
The CDROM_WRITE_SPEED_REQUEST structure is used as an input parameter to the IOCTL_CDROM_GET_PERFORMANCE IOCTL and for requesting write speed descriptors.
RequestTypeAs defined in the CDROM_PERFORMANCE_REQUEST_TYPE enumeration.
CDROM_PERFORMANCE_REQUEST_TYPE