IOCTL_STORAGE_SET_READ_AHEAD IOCTL

Causes the device to skip to the given target address when the device reaches a certain trigger address during read-ahead caching.

Major Code

IRP_MJ_DEVICE_CONTROL

Input Buffer

The buffer at Irp->AssociatedIrp.SystemBuffer contains a STORAGE_SET_READ_AHEAD structure that indicates the trigger and target addresses.

Input Buffer Length

The length of a STORAGE_SET_READ_AHEAD structure.

Output Buffer

None.

Output Buffer Length

None.

Input / Output Buffer

Input / Output Buffer Length

Status Block

The Information field is set to zero. The Status field is set to STATUS_SUCCESS.

Requirements

   
Header ntddcdvd.h (include Ntddcdvd.h)

See Also

STORAGE_SET_READ_AHEAD