// ntddcdrm.h

typedef enum _CDROM_SPEED_REQUEST {
  CdromSetSpeed,
  CdromSetStreaming
} CDROM_SPEED_REQUEST, *PCDROM_SPEED_REQUEST;
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Windows Driver Kit DDI reference (ne-ntddcdrm-_cdrom_speed_request)

_CDROM_SPEED_REQUEST enumeration

Description

The CDROM_SPEED_REQUEST enumeration indicates which command that the CD-ROM class driver will use to set the spindle speed of a CD-ROM drive.

Constants

`CdromSetSpeed`

The CD-ROM class driver will use the SET CD SPEED command to set the spindle speed.

`CdromSetStreaming`

The CD-ROM class driver will use the SET STREAMING command to set the spindle speed.

CDROM_SPEED_REQUEST - NtDoc