Re: Input layer demand loading

Mike Fedyk
2003-07-16T18:21:34Z

On Wed, Jul 16, 2003 at 10:19:17PM +0400, Andrey Borzenkov wrote:
> >> True, but then if you try to open the port, you will only get the base
> >> joydev.o module loaded, not the gameport driver, which is what you
> >> _really_ want to have loaded, right?
> >>
> >> So there really isn't much benifit to doing this, sorry.
> >
> > Why? It could work the way PCMCIA SCSI works.
> > Cardmgr loads the LLDD, but sd, sg, etc. are loaded
> > on demand.
>
> how? SCSI (or USB, PCI, EISA etc) have driver-independent means to identify
> device or at least device class.
>
> But how are you going you going to know you need to load specific mouse driver
> (logitech not microsoft) or specific joystick flavour? All that you possibly
> know that you have _some_ mouse or _some_ joystick ...

Isn't that why we have hotplug in userspace?

That way, we know we have a mouse, but it's up to userspace to find out
what kind.