From: Johannes Berg <johannes@sipsolutions.net>
To: Helmut Schaa <helmut.schaa@googlemail.com>
Cc: linux-wireless@vger.kernel.org, Ivo van Doorn <ivdoorn@gmail.com>,
Gertjan van Wingerde <gwingerde@gmail.com>
Subject: Re: rt2x00 & mac80211: correct usage of ieee80211_beacon_get_tim?
Date: Fri, 02 Jul 2010 20:06:04 +0200 [thread overview]
Message-ID: <1278093964.15412.24.camel@jlt3.sipsolutions.net> (raw)
In-Reply-To: <201007021959.45704.helmut.schaa@googlemail.com>
On Fri, 2010-07-02 at 19:59 +0200, Helmut Schaa wrote:
> > unless your
> > device itself is capable of generating the TIM IE _right before_ the
> > beacon gets transmitted.
>
> Agreed. At least on rt2800 we can use the pre tbtt interrupt to update the
> beacon just before it is sent out.
Careful though. You don't know how far in advance it is triggered (or
maybe you do) or if the time will be sufficient to generate and upload
the beacon to the device. You could even hit lock contention I think.
johannes
next prev parent reply other threads:[~2010-07-02 18:06 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-24 13:21 rt2x00 & mac80211: correct usage of ieee80211_beacon_get_tim? Helmut Schaa
2010-06-24 14:32 ` John W. Linville
2010-06-24 15:51 ` Johannes Berg
2010-06-24 15:53 ` Johannes Berg
2010-06-24 15:54 ` Johannes Berg
2010-06-24 16:20 ` Helmut Schaa
2010-06-25 16:01 ` Helmut Schaa
2010-06-26 15:32 ` John W. Linville
2010-06-27 8:21 ` Johannes Berg
2010-06-27 19:00 ` Helmut Schaa
2010-07-02 17:12 ` Johannes Berg
2010-07-02 17:59 ` Helmut Schaa
2010-07-02 18:06 ` Johannes Berg [this message]
2010-07-02 18:20 ` Helmut Schaa
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