IOCTL_CDROM_GET_INQUIRY_DATA IOCTL (ntddcdrm.h)

Returns the SCSI inquiry data for the CD-ROM device. This IOCTL can be used when a device has been exclusively locked with IOCTL_CDROM_EXCLUSIVE_ACCESS.

Major code

IRP_MJ_DEVICE_CONTROL

Input buffer

None.

Input buffer length

None.

Output buffer

The buffer at Irp->AssociatedIrp.SystemBuffer contains the returned inquiry data. For a description of the layout of the inquiry data in the output buffer, see INQUIRYDATA.

Output buffer length

Parameters.DeviceIoControl.OutputBufferLength indicates the number of bytes that can be written to Irp->AssociatedIrp.SystemBuffer, which must be >= sizeof(INQUIRYDATA).

Status block

The Information field contains the number of bytes returned in the output buffer. The Status field indicates the results of the operation.

Requirements

See also

INQUIRYDATA

IOCTL_CDROM_EXCLUSIVE_ACCESS