git-svn-id: svn://svn.rockbox.org/rockbox/trunk@303 a1c6a512-1295-4272-9138-f99709370657
(open, close, read, write do not have to be re-defined) git-svn-id: svn://svn.rockbox.org/rockbox/trunk@299 a1c6a512-1295-4272-9138-f99709370657
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@278 a1c6a512-1295-4272-9138-f99709370657