ANSI/INCITS 480-2011
This standard assumes that the reader is familiar with the conventional INT 13h interface, the usage of the BIOSDevice Parameter Table, and the basic operation of mass storage devices. This standard describes in detailBIOS functions and data structures that are used as an abstraction layer to allow higher-level applications toaccess mass storage devices in an interface and command-set independent manner. To comply with thisstandard, higher-level software shall call the INT functions using the data structures described herein, andsystem firmware shall provide the INT functions and data structures described herein.