// ntddcdrm.h

typedef enum _CDROM_PERFORMANCE_EXCEPTION_TYPE {
  CdromNominalPerformance,
  CdromEntirePerformanceList,
  CdromPerformanceExceptionsOnly
} CDROM_PERFORMANCE_EXCEPTION_TYPE, *PCDROM_PERFORMANCE_EXCEPTION_TYPE;
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Windows Driver Kit DDI reference (ne-ntddcdrm-_cdrom_performance_exception_type)

_CDROM_PERFORMANCE_EXCEPTION_TYPE enumeration

Description

The CDROM_PERFORMANCE_EXCEPTION_TYPE enumeration defines the exceptional conditions for performance data. It is a member of the CDROM_PERFORMANCE_REQUEST structure, which is used as an input parameter to the IOCTL_CDROM_GET_PERFORMANCE I/O control request.

Constants

`CdromNominalPerformance`

Requests nominal performance parameters.

`CdromEntirePerformanceList`

Requests the entire performance list, as qualified by the StartingLba field of the CDROM_PERFORMANCE_REQUEST structure.

`CdromPerformanceExceptionsOnly`

Requests only performance exceptions that cause the performance to fall outside the nominal.

CDROM_PERFORMANCE_EXCEPTION_TYPE - NtDoc