> Well, the only difference for your driver is that generic function
> won't do the final copyout implicitly, you'd do that from usemaclone's
> ioctl function directly. Not a big deal at all and no need to
> add hooks to irix_sys_ioctl.

Well at least to call directly the driver ioctl method without going
through sys_ioctl.

> > 2) one ioctl sets the return value. 
> Return value for what? Other ioctls?

The return value for the ioctl system call. As of today, we have to way
for a driver ioctl method to set the return value.

> Well, I think it would be better to add hooks to irix_sys_fchmod()
> rather than definining new fileops.

I'm not sure I agree. I already have a version with multiple hooks in
various system calls for usemaclone, and it looks rather ugly.

-- 
Emmanuel Dreyfus.  Cette signature vous est fournie telle quelle, sans 
aucune garantie de fonctionnement. En la lisant, vous acceptez 
implicitement tous les degats qu'elle pourrait causer, materiellement 
ou logiciellement.                                manu@netbsd.org