From: Michael Geng <linux@MichaelGeng.de>

This patch switches the videotext drivers over to use the _IO macros for
ioctls.  video_usercopy() works correctly then.  The drivers will also map the
old to the new ioctl numbers to make sure old apps don't break.

The patch also updates Documentation/ioctl.h to reflect that change.  and
deletes a unused struct in include/linux/videotext.h.
Signed-off-by: Gerd Knorr <kraxel@bytesex.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>