Description: Indicates if the hardware controller sub-system in the device is not ready. If there are no items in the collection (i.e. no bits are set), then the hardware controller sub-system is ready. If there is an item present, then the item indicates what is causing the hardware controller sub-system to be not ready. If the cControllerFailure item is in the collection, then a hardware error was detected on the main controller PC board, sometimes called the formatter or the logic broad. Example controller hardware errors include DRAM controller failure, clock failure, memory parity error, and ROM CRC error. The cFirmwareFailure item is in the collection if a firmware/software error was detected. Device specific detailed error information can be retrieved from the error log objects, if the device supports those objects. The POS will list which device failures cause each item to be included in the collection. Additional information: A controller failure occurrence will set the cControllerFailure bit (bit 1). The controller failures are: 62.X Service, 63 Service, 65 Service, 67 Service, 68 Service, and 68 Error. A SIMM failure occurrence will set the cSIMMFailure bit (bit 2). The SIMM failures are 61.X Service, 53-XY-ZZ Error, and 72 Service. A DISK failure occurrence will set the cATFailure bit (bit 3). The DISK failure is FS DISK FAILURE.