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From: Ivo van Doorn <ivdoorn-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: "Luis R. Rodriguez" <mcgrof-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: linux-wireless
	<linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	radiotap-rN9S6JXhQ+WXmMXjJBpWqg@public.gmane.org,
	Ivan Seskar
	<Seskar-NvJAj8134tRxEa0u/P/EHDe48wsgrGvP@public.gmane.org>,
	Haris Kremo
	<harisk-NvJAj8134tRxEa0u/P/EHDe48wsgrGvP@public.gmane.org>,
	"John W. Linville"
	<linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>,
	Simon Barber <simon-r/za7OOdgF0ztatW0fm/fQ@public.gmane.org>,
	Dan Williams <dcbw-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Luis Carlos Cobo <luisca-W/OLz77bvjtBDgjK7y7TUQ@public.gmane.org>,
	Javier Cardona <javier-W/OLz77bvjtBDgjK7y7TUQ@public.gmane.org>,
	Sam Leffler <sam-zZXckVAlHaQAvxtiuMwx3w@public.gmane.org>,
	Jean Tourrilhes <jt-sDzT885Ts8HQT0dZR+AlfA@public.gmane.org>,
	Stefano Brivio
	<stefano.brivio-hl5o88x/ua9eoWH0uzbU5w@public.gmane.org>,
	Johannes Berg <johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>
Subject: Re: [RFC] RCPI support in radiotap and in our wireless subsystems
Date: Thu, 6 Mar 2008 21:55:17 +0100	[thread overview]
Message-ID: <200803062155.19725.IvDoorn__11570.4779200771$1216696539$gmane$org@gmail.com> (raw)
In-Reply-To: <43e72e890803061238u50847f1fs587627c5fac028d6-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

Hi.

> ---
> 
> For ipw2200:
> 
> s8 antsignal = frame->rssi_dbm - IPW_RSSI_TO_DBM;
> 
> and IPW_RSSI_TO_DBM is set to 112.
> 
> Is antsignal above the "measure by the PHY sublayer of the received RF
> power in the channel measured over the entire received frame"?

For completeness, the rt2x00 & RSSI:

rt2400pci, rt2500pci, rt2500usb:
Same as ipw2200 only the IPW_RSSI_TO_DBM varies from 100 to 120 (as
hardcoded value in the register) to a unsigned char value read from
the EEPROM. The legacy drivers _suggest_ this is the rssi...

rt61pci, rt73usb:
The device reports an agc value, this is used as basis for a vague calculation
to determine the RSSI_TO_DBM offset based on LNA and current operating band.
Here too, the legacy driver suggests this is the rssi...

Ivo

       reply	other threads:[~2008-03-06 20:55 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <43e72e890803061238u50847f1fs587627c5fac028d6@mail.gmail.com>
     [not found] ` <43e72e890803061238u50847f1fs587627c5fac028d6-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-03-06 20:55   ` Ivo van Doorn [this message]
2008-03-07  0:32   ` [RFC] RCPI support in radiotap and in our wireless subsystems bruno randolf
     [not found] ` <200803070932.51396.bruno@thinktube.com>
     [not found]   ` <200803070932.51396.bruno-L9ZBdB2wSWtl57MIdRCFDg@public.gmane.org>
2008-03-07  3:04     ` Luis R. Rodriguez
     [not found]   ` <43e72e890803061904h742df37fuaa12977c45e457a@mail.gmail.com>
     [not found]     ` <43e72e890803061904h742df37fuaa12977c45e457a-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-03-07  8:57       ` bruno randolf
     [not found]     ` <200803071757.19302.bruno@thinktube.com>
     [not found]       ` <200803071757.19302.bruno-L9ZBdB2wSWtl57MIdRCFDg@public.gmane.org>
2008-03-07 15:41         ` Luis R. Rodriguez
2008-03-06 20:38 Luis R. Rodriguez

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