[PATCH] Fix force feedback uploading for 32-bit apps on 64-bit kernel

Hello,

Force feedback upload of effects through the event device (ioctl
EVIOCSFF) is not working in 32 bit apps like wine on a 64-bit kernel. 64
bit apps like fftest work.

This is due to the fact that struct ff_effect contains a pointer,
resulting in the structure having different sizes in 64 and 32 bit
programs. This means that the ioctl issued from 32 bit code isn't
handled, because it has a different number.

Attached patch (against 2.6.24.3) fixes this. Tested on x86_64.

Is this ok or are there some alignment issues, which forbid this simple
zero-copy solution?

PS. Please keep me in the CC list, as I'm not subscribing this list.