// ntddcdrm.h
typedef struct _CDROM_AUDIO_CONTROL {
UCHAR LbaFormat;
USHORT LogicalBlocksPerSecond;
} CDROM_AUDIO_CONTROL, *PCDROM_AUDIO_CONTROL;
View the official Windows Driver Kit DDI referenceNo description available.
The CDROM_AUDIO_CONTROL structure is used in conjunction with the IOCTL_CDROM_GET_CONTROL request to report the audio playback mode.
LbaFormatContains the logical block address (LBA) format.
LogicalBlocksPerSecondContains the number of logical blocks per second.