From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from xc.sipsolutions.net ([83.246.72.84]:49939 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756824AbZD3N4O (ORCPT ); Thu, 30 Apr 2009 09:56:14 -0400 Subject: Re: rt73usb Access point status From: Johannes Berg To: Joerg Pommnitz Cc: linux-wireless@vger.kernel.org In-Reply-To: <557754.25367.qm@web51403.mail.re2.yahoo.com> References: <557754.25367.qm@web51403.mail.re2.yahoo.com> Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-1guS6h3QwpnMLTtdFl1/" Date: Thu, 30 Apr 2009 15:55:41 +0200 Message-Id: <1241099741.29878.3.camel@johannes.local> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-1guS6h3QwpnMLTtdFl1/ Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Thu, 2009-04-30 at 06:41 -0700, Joerg Pommnitz wrote: > > Based on that information, I have removed the "Yes (under development)" > > note from the driver page since it doesn't really support it... In fact= , > > I'm surprised it works even with that hack since hostapd usually polls > > the station with nullfunc frames and waits for an ack. >=20 > Reading the mail from Ivo (http://sourceforge.net/mailarchive/message.php= ?msg_id=3D200808082059.11968.IvDoorn%40gmail.com) > I gather that the ACK in question is not from the peer but from the local > hardware indicating that the frame was actually sent and not lost due to > some local error.=20 No, the ACK in question is this one: local remote --- nullfunc frame ---> <------- ACK ---------- Apparently rt73usb is incapable of telling the driver that it got this ACK frame, and as such hostapd will not be informed about that, and then it will expire the station if it's otherwise idle. johannes --=-1guS6h3QwpnMLTtdFl1/ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iQIcBAABAgAGBQJJ+a3XAAoJEKVg1VMiehFYrkEQAJk+ZG+VTF6FanC3b5MYfk6I cZAycRFX32pfwGp0L9/inwCCejT8NzjKSX/UFHazBdyQgR/nLvMkP+FuH+a/UWFV fseGwQrQA7ycaw3K3HNFUE1iFvtMJuxxekHoa8qcUTinh9ILtZdMc7r0RrwlnRJ0 UjTTobRCovJ2iWJ36CvBb16Uexjgzn60zOzC3R658cF+5iKPEonVTaqAiRZZuvHk p3bWaItjnWpV0FooHWjshDyHSJyfpPMT3fM92pfzG78sAlNiCpUfosNjaR0uKqs2 th/gYKBsKyH/mbIvTXSHyNtIovqfTLbJfWWfZqvNO7kmjfCH0eyhkapS+bWP/b6+ PYK0L547U+eYypUpPgKu0Y91NIxNcJwVU4yTBnRi0/l0BJ8whnxUmr0/6N68hrhA vhKzhyaKj1vgXDGpHSbFxhWWgmJw/WGvrKD8mwrCykk3wLjmCFi8KPbTVNFTLNvn 6xBMH3mhUeL+E1zX7rsA0q44krwIEO2dl1fCTdYkLjxBIKhJAde9af/DRjGmm4AR cSqEPoldlVp0TwSX21veVzdokOHAKXhTFtVFW+0TplCOwVZHqbHlMXCy33Fruh6A o18VwgNgm5NZ2JBGzU4scgJ2eSC8TT/04CyLaWiaxpP5EQWl4zeA6lkJRejxY4QF MxDb9GuXnwo/tHlIskcd =erRu -----END PGP SIGNATURE----- --=-1guS6h3QwpnMLTtdFl1/--