git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16951 a1c6a512-1295-4272-9138-f99709370657
(Doing it this way means playback could(/should?) registar a disk spinup callback at init which is called every spinup without needing to be reregistered) git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16685 a1c6a512-1295-4272-9138-f99709370657
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16682 a1c6a512-1295-4272-9138-f99709370657