Hi all As part of my Linux course, I am studying the disk I/O mechanism in Linux. We start from read() and then follow the path all the way to do_rw_disk(). I need some information about disk controllers and disks(physical layout) , I/O ports and interfaces. Can anyone please point me to some resources online and o'wsie? Thanx and Regards Giri ------------------------------------------------------------------------------- Judge not lest ye be judged yourself. ------------------------------------------------------------------------------- -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/