Re: Adding PCMCIA support to the kernel tree -- developers needed.

[Vojtech Pavlik <vojtech@suse.cz>]

On Wed, Feb 07, 2001 at 07:47:45PM +0100, Oliver Neukum wrote:
> > Yes. Relying on detection order for device naming in a hotplugging
> > system is a nightmare, anyway.
> 
> It's hardcoded into many subsystems.
> 
> > > printer 1 addition -> edit printcap
> > > printer 2 addition -> edit printcap
> > > printer 1 removal -> edit printcap
> > >
> > > will leave you with lp1 as your printer name
> > > If you reverse steps 2 and 3 you get lp0 as printer name.
> >
> > So you have to give them some other names, not based on addition/removal
> > order. Userspace (printcap in this case) will never be happy with names
> > changing no matter how much we serialize.
> 
> There's the little issue of a very limited device node space.

You don't necessarily have to expand it, you just need to use it with
care.

> That doesn't mean that I don't agree with the diagnosis.
> I just don't see a way to implement the remedy cleanly.

Well, I think letting the hotplug program decide what the device will
appear as (the name or possibly also major/minor numbers) could work?

-- 
Vojtech Pavlik
SuSE Labs

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