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

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Message-Id: <20061003203646.60d9589a.seanlkml@sympatico.ca>
Date:	Tue, 3 Oct 2006 20:36:46 -0400
From:	Sean <seanlkml@...patico.ca>
To:	jt@....hp.com
Cc:	Theodore Tso <tytso@....edu>,
	"John W. Linville" <linville@...driver.com>,
	Jeff Garzik <jeff@...zik.org>,
	Linus Torvalds <torvalds@...l.org>,
	Lee Revell <rlrevell@...-job.com>,
	Alessandro Suardi <alessandro.suardi@...il.com>,
	Norbert Preining <preining@...ic.at>, hostap@...oo.com,
	linux-kernel@...r.kernel.org, johannes@...solutions.net
Subject: Re: wpa supplicant/ipw3945, ESSID last char missing

On Tue, 3 Oct 2006 17:30:31 -0700
Jean Tourrilhes <jt@....hp.com> wrote:

> 	How does that happen in practice ? Kernel has no clue on what
> userpace version is running.
> 

Ted mentioned that the way it works for stat is that userspace requests
an API version and the kernel delivers it.  So old versions request old
API and new versions request new API.  You only ever _add_ new API, and
never remove older versions.

Sean
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