On Wed, Oct 12, 2005 at 07:08:44PM -0700, Greg KH wrote:
> Ok, finally. Here's a set of _working_ patches that properly implement
> nesting class_device structures, and the follow-on patches to move the
> input subsystem to use them. Hotplug and release functions work
> properly now, and this will let us move /sys/block/ to use class and
> class_device structures soon.
>
> The input patches are on top of almost all of Dmitry's input patches.
> All of them are together in one series in my public patches at:
> kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
> and should show up in the next -mm release.
>
> The sysfs tree looks the same as it did last time, but now hotplug works
> properly for addition and removal, and we actually free the memory used
> :)
>
> For those that don't remember, here's the sysfs tree on my desktop:
> $ tree /sys/class/input/ -d
> /sys/class/input/
> |-- input0
> | |-- capabilities
> | |-- event0
> | `-- id
> |-- input1
> | |-- capabilities
> | |-- device -> ../../../devices/platform/i8042/serio1
> | |-- event1
> | | `-- device -> ../../../../devices/platform/i8042/serio1
> | `-- id
> |-- input3
> | |-- capabilities
> | |-- device -> ../../../devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0
> | |-- event2
> | | `-- device -> ../../../../devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0
> | |-- id
> | |-- mouse0
> | | `-- device -> ../../../../devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0
> | `-- ts0
> | `-- device -> ../../../../devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0
> `-- mice
> Ok, I think that covers everything.
>
> Oh, one final thing. I really don't think that input should be a class.
> It looks like a "bus" and acts like a "bus" (you have different devices
> that have different drivers bind to them, and you want to load those
> drivers with the hotplug mechanism.)
[ Vojtech mumbles something about saying that from the beginning. ]
> The only thing keeping this from
> being a bus is the fact that we can't bind multiple drivers to a single
> device these days, and I can't see a way to move this code to that
> model, so oh well...
Oh, well.
--
Vojtech Pavlik
SuSE Labs, SuSE CR
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