linux-kernel - Re: wpa supplicant/ipw3945, ESSID last char missing

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Date:	Wed, 04 Oct 2006 09:33:23 +0200
From:	Arjan van de Ven <arjan@...radead.org>
To:	Jouni Malinen <jkmaline@...hut.fi>
Cc:	Jean Tourrilhes <jt@....hp.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Jeff Garzik <jeff@...zik.org>,
	"John W. Linville" <linville@...driver.com>,
	Linus Torvalds <torvalds@...l.org>,
	Lee Revell <rlrevell@...-job.com>,
	Alessandro Suardi <alessandro.suardi@...il.com>,
	Norbert Preining <preining@...ic.at>, hostap@...oo.com,
	ipw3945-devel@...ts.sourceforge.net, Andrew Morton <akpm@...l.org>,
	linux-kernel@...r.kernel.org, johannes@...solutions.net
Subject: Re: wpa supplicant/ipw3945, ESSID last char missing

On Tue, 2006-10-03 at 19:21 -0700, Jouni Malinen wrote:
> On Tue, Oct 03, 2006 at 12:49:57PM -0700, Jean Tourrilhes wrote:
> 
> > 	No, it's not. But as soon as *some part* of WE-21 appears in
> > the kernel, the userspace expect the ESSID change. If we want to have
> > WE-21 without the ESSID change, we need to fix userspace.
> 
> Or leave WIRELESS_EXT at 20 and come up with a new way of versioning any
> future changes in WE.. Yes, having two different mechanisms for version
> number is ugly, but it could prevent userspace breakage.
> 
> (And based on the other messages in this thread, it might be useful to
> include the userspace program's idea of the version in those new
> commands to allow multiple interface versions to be supported by the
> kernel).


or... don't use a NUMBER for this.

If you have a bitmap for supported features, it's much more powerful!
That way you can even do this per driver/hardware, and you can
add/retract individual capabilities rather than lumping everything into
one big number.


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