Dmitry Torokhov wrote:
> Hi,
>
> I am trying to convert input systsem to play nicely with sysfs and I am
> having trouble with hotplug agent. The old hotplug mechanism was using
> "input" as agent/subsystem name, unfortunately I can't simply use "input"
> class because when Greg added class_simple support to input handlers
> (evdev, mousedev, joydev, etc) he used that name. So currently stock
> kernel gets 2 types of hotplug events (from input core and from input
> handlers) with completely different arguments processed by the same
> input agent.
>
> So I guess my question is: is there anyone who uses hotplug events
> for input interface devices (as in mouseX, eventX) as opposed to
> parent input devices (inputX). If not then I could rename Greg's class
> to "input_dev" and my new class to "input" and that will be compatible
> with older installations.
>
> Also, in the long run I would probably want to see something like this:
>
> /sys/class/input---input0
> |
> |-input1
> |
> |-input2
> |
> |-mouse---mouse0
> | |
> | |-mouse1
> | |
> | --mice
> |
> |-event---event0
> |
> |-event1
> |
> |-event2
>
> where inputX are class devices, mouse and event are subclasses of input
> class and mouseX and eventX are again class devices.
>
> Objections, suggestions, etc?
>
Hmm. I don't like it very much as it mixes two different types of
devices (class devices and subclasses) into one directory.
I think it's cleaner to have two distinct class device types
(one for input_dev and one for input).
subclasses for the input class devices are a neat idea; but I fear the
hotplug event name will change for each subclass device ('input' will
become eg 'mouse'), so we again have to change all hotplug handlers.
And I don't see an easy solution for that ...
Cheers,
Hannes
--
Dr. Hannes Reinecke [email protected]
SuSE Linux AG S390 & zSeries
Maxfeldstraße 5 +49 911 74053 688
90409 Nürnberg http://www.suse.de
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