Re: Input sysbsystema and hotplug

[Dmitry Torokhov <dtor_core@ameritech.net>]

On Monday 13 June 2005 17:17, Greg KH wrote:
> On Mon, Jun 13, 2005 at 04:38:08PM -0500, Dmitry Torokhov wrote:
> > On Monday 13 June 2005 16:26, Kay Sievers wrote:
> > > On Mon, Jun 13, 2005 at 04:07:51PM -0500, Dmitry Torokhov wrote:
> > > > 
> > > > where inputX are class devices, mouse and event are subclasses of input
> > > > class and mouseX and eventX are again class devices.
> > > 
> > > We don't support childs of class devices until now. Would be nice maybe, but
> > > someone needs to add that to the driver-core first and we would need to make
> > > a bunch of userspace stuff aware of it ...
> > > 
> > 
> > Something like patch below will suffice I think (not tested).
> 
> No, you need to increment the parent when you register the child.  Look
> at the device code for what's needed for this.
>

Don't quite follow what you are saying. If you are saying that it needs
to call class_get(parent) I don't think it's necessary as kobject code
will grab the reference (to class's subsystem kset).

All in all it seems to be working:

[dtor@core ~]$ ls /sys/class/input_dev/
input0  input3  input4  input_dev_subclass
[dtor@core ~]$

-- 
Dmitry