Messages in this thread | | | Date | Tue, 14 Jun 2005 09:43:26 +0200 | From | Hannes Reinecke <> | Subject | Re: Input sysbsystema and hotplug |
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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 hare@suse.de SuSE Linux AG S390 & zSeries Maxfeldstraße 5 +49 911 74053 688 90409 Nürnberg http://www.suse.de - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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