K 10 svn:author V 3 mav K 8 svn:date V 27 2013-04-24T19:33:37.321282Z K 7 svn:log V 197 MFC r248704: Read Asynchronous Notification statuses only if Port Multiplier or ATAPI device are connected. ATA disks are not using ANs, while the extra register read operation is quite expensive. END