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From: Dave <kilroyd@googlemail.com>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: "Luis R. Rodriguez" <mcgrof@gmail.com>, linux-wireless@vger.kernel.org
Subject: Re: [RFC 00/11] cfg80211 connect API + wireless extension move
Date: Sun, 28 Jun 2009 10:26:08 +0100	[thread overview]
Message-ID: <4A473730.3000409@gmail.com> (raw)
In-Reply-To: <1246047520.21314.67.camel@johannes.local>

Johannes Berg wrote:
> Yes. Mind you, I was not only talking about iwpriv, but also about
> things like orinoco's spy support or get/set sensitivity. The latter we
> don't quite understand -- can you tell us what it actually does? Spy
> support should just be removed, I think.

I've had a closer look at this.

The sensitivity basically controls the roaming threshold when handled by
firmware. It is a firmware setting, though the Agere driver also
validates the multicast rates based on it. The drivers/firmware use
terms like system scale, AP density, distance between APs.

There are 3 valid values:

3 - high density of APs. Maintain 11Mbps by roaming.
2 - medium density of APs. Maintain 2Mbps.
1 - low density. Maintain 1Mbps.

Although the values are defined in terms of the usable bitrate, the
(Intersil) documentation states that the implementation is based on SNR.



Dave.

  reply	other threads:[~2009-06-28  9:26 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-24 12:07 [RFC 00/11] cfg80211 connect API + wireless extension move Johannes Berg
2009-06-24 12:07 ` [RFC 01/11] cfg80211: connect/disconnect API Johannes Berg
2009-06-24 15:30   ` Samuel Ortiz
2009-06-24 12:07 ` [RFC 02/11] cfg80211: emulate connect with auth/assoc Johannes Berg
2009-06-24 12:07 ` [RFC 03/11] cfg80211: managed mode wext compatibility Johannes Berg
2009-06-24 12:07 ` [RFC 04/11] cfg80211: implement iwpower Johannes Berg
2009-06-24 12:07 ` [RFC 05/11] cfg80211: implement IWAP for WDS Johannes Berg
2009-06-24 12:07 ` [RFC 06/11] cfg80211: implement IWRATE Johannes Berg
2009-06-24 12:07 ` [RFC 07/11] cfg80211: implement get_wireless_stats Johannes Berg
2009-06-24 12:07 ` [RFC 08/11] cfg80211: combine iwfreq implementations Johannes Berg
2009-06-24 12:07 ` [RFC 09/11] cfg80211: combine IWAP handlers Johannes Berg
2009-06-24 12:07 ` [RFC 10/11] cfg80211: combine IWESSID handlers Johannes Berg
2009-06-24 12:07 ` [RFC 11/11] cfg80211: self-contained wext handling Johannes Berg
2009-06-24 20:24 ` [RFC 00/11] cfg80211 connect API + wireless extension move Luis R. Rodriguez
2009-06-25 20:37   ` Dave
2009-06-26 20:18     ` Johannes Berg
2009-06-28  9:26       ` Dave [this message]
2009-06-29  8:35         ` Johannes Berg
2009-06-26 21:01     ` Johannes Berg
2009-06-28  8:43       ` Dave

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