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List:       kde-devel
Subject:    Re: hotplug devices (scripting questions)
From:       Tim Jansen <tim () tjansen ! de>
Date:       2002-04-12 8:53:00
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On Friday 12 April 2002 09:20, Thorsten Schnebeck wrote:
> Is it useful to have a global KDE infrastructure for hotplug signals (Qt
> style) like:
> "[New|Lost] [USB|1394|PCMCIA|IRDA|Serial|Parallel|Network]-Device
> [Name/ID]" I think we need this for pim programs like kitchensync, kandy
> etc.!?

Unfortunately Linux 2.4 lacks many capabilities neccessary for hotplugging. 
For example the /sbin/hotplug notifications only give enough information to 
load the devic driver, but this device driver won't tell you the major/minor 
number it has taken. And you don't have stable ids for hotplug devices that 
are still valid after re-plugging (so you can always mount the same disk at 
the same mount point). And you cannot get the relationship between 
multi-functional devices. For example many scanners have two or three 
interfaces: image capture and HID (human interface devices, usually for 
buttons like 'copy', 'scan'..). Right now there is now way to find out which 
scanner device belongs to which HID device, nor do you know which model/brand 
it is, so you cant know the button mapping.
I am very interrested in hotplugging support, but I would suggest to wait 
until Linux 2.5 is a little bit more mature, because its new device driver 
model will solve these problems.

bye...

 
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