Return-path: Received: from crystal.sipsolutions.net ([195.210.38.204]:49292 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754380AbYDMKLr (ORCPT ); Sun, 13 Apr 2008 06:11:47 -0400 Subject: Re: RaLink RT2500 802.11g Cardbus/mini-PCI From: Johannes Berg To: Thomas =?ISO-8859-1?Q?B=E4chler?= Cc: Ivo van Doorn , linux-wireless@vger.kernel.org, "John W. Linville" , Vladimir Koutny In-Reply-To: <4801C4FF.5060606@archlinux.org> References: <35856.201.36.161.238.1206999707.squirrel@mamao.cetuc.puc-rio.br> <200804021932.26046.IvDoorn@gmail.com> <47FE8FAD.9020802@archlinux.org> <200804121246.44236.IvDoorn@gmail.com> <4800F76C.7000801@archlinux.org> <1208072495.4111.10.camel@johannes.berg> <1208074049.4111.18.camel@johannes.berg> <4801C4FF.5060606@archlinux.org> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-ttD+rT+WOdc8eMBcjVmE" Date: Sun, 13 Apr 2008 12:11:35 +0200 Message-Id: <1208081495.4111.32.camel@johannes.berg> (sfid-20080413_111200_782891_C56BC554) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-ttD+rT+WOdc8eMBcjVmE Content-Type: text/plain Content-Transfer-Encoding: quoted-printable > I figured as much from the original commit message. So rt2500pci works=20 > properly when the use_short_preamble has the wrong value, and breaks=20 > when it has the right one. > By the way, 2.6.25-rc8 was the first time that rt2500pci was ever fast=20 > enough to be usable at all for me, so the bug you introduced seemed to=20 > be the fix for my speed problems (which is odd). My guess is that=20 > rt2500pci treats use_short_preamble wrong. Even using use_short_preamble wrongly shouldn't give much of a drop in network speed. I fear there's another bug. Is your AP even short-preamble capable? Maybe that's the problem, your AP isn't announcing short preamble but we're enabling it by that code? I haven't looked in too much detail yet though. johannes --=-ttD+rT+WOdc8eMBcjVmE Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iQIVAwUASAHcVqVg1VMiehFYAQJMDA//WzRYmAkg8CH3mQgYZfCzspxnQKzArf/V PSHHReNRqlL/YJ2D3Hl+pAr7wZAvYfiLvv8IOQUFkUJZ3woV77a6som9R4k3yvsU VOk4c3BhNjC+DwrwisTLvweCptN3i+BETlTJQiW/fiWpHTk7AovjtGN1jXWX0+uE bYDTX7VGG23taxIZSXt0sITIzfOJei54R5XmtRj1eWHx9acRfDsHINEkLQWKzUJ3 r7nl7BpLLFb9tsIHk3ApU5QGPwcjsI8QkZaOl/2uZ0BoVzQG0eJpBhOOXolpywVA dX6/RNpl5jMQEiiqZlpvSDtsCfm22NZ4VxyS6sR6TKmalIZlv8wVS6hK1rwq2h46 fvNLivXAyXHOVBi0QJ5PcSzZybnWe+4xG6Vc/M6IqjIe75nP3bka/lvNXA3JvodZ 8ZLkaoBW5N/xp28AeyrkFLMe46OXgcxxY5kRT3ZUPaxBsnn303zXq+upHx9UyLU5 3RWQNwEVsKbBTgEckzNfJCDt8A1feU7SmgqN3jEGtbYlksixhWRlWzBWCt3VMnN4 o1GR8UfxwMOeBAfZMehRfCCNPYQ5xMDu40FTrMyx9yhMmoGku8LFV1x/wXVmIif0 BHtusoeOU6qoqutLozMmOEOYM+Y0vKwN4W7BUvK6fsGURayoVNl1kv3q7c0ZzJzU JB/q2Pv5Rsw= =vz5P -----END PGP SIGNATURE----- --=-ttD+rT+WOdc8eMBcjVmE--