Re: devices with more than one node

[Greg KH <greg@kroah.com>]

On Wed, Jan 14, 2004 at 06:29:37PM +0100, Olaf Hering wrote:
>  On Tue, Jan 13, Greg KH wrote:
> 
> > On Tue, Jan 13, 2004 at 10:11:22PM +0100, Olaf Hering wrote:
> > >  On Tue, Jan 13, Greg KH wrote:
> > > > On Tue, Jan 13, 2004 at 08:38:42PM +0100, Olaf Hering wrote:
> > > > > inputdevices have also an event node attached.
> > > > 
> > > > Yes, and you get two different hotplug events, and udev just works,
> > > > right?  (this is with the kernel patches I sent out last week...)
> > > 
> > > I tried the -mm tree, and /proc/bus/input/devices differs indeed. Havent
> > > tried to feed udev with the data.
> > 
> > Look at /sys/class/input in the -mm kernel.  I didn't do anything with
> > the /proc/bus/input stuff.
> 
> I did not load evdev.ko on the other box. Anyway, I havent tested it
> yet, but what will happen with the /dev/input/mice multiplexer and one
> of the 2 USB mice will be removed? I think /dev/input/mice will
> disappear, have to verify that today.

It doesn't do that for me, try testing the code before making such
claims :)

As an example, here's what my /sys/class/input/ looks like with a ps2
and a usb mouse plugged in, and the evdev module loaded:
$ tree /sys/class/input/
/sys/class/input/
|-- event0
|   `-- dev
|-- event1
|   `-- dev
|-- event2
|   |-- dev
|   |-- device -> ../../../devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2.2
|   `-- driver -> ../../../bus/usb/drivers/usb
|-- mice
|   `-- dev
|-- mouse0
|   `-- dev
`-- mouse1
    |-- dev
    |-- device -> ../../../devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2.2
    `-- driver -> ../../../bus/usb/drivers/usb

thanks,

greg k-h


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