From: Sujith <m.sujith@gmail.com>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Jouni Malinen <j@w1.fi>, linux-wireless@vger.kernel.org
Subject: Re: [RFC] nl80211: Add frequency configuration (including HT40)
Date: Wed, 26 Nov 2008 15:21:16 +0530 [thread overview]
Message-ID: <18733.7188.148730.783104@localhost.localdomain> (raw)
In-Reply-To: <1227688845.4613.53.camel@johannes.berg>
Johannes Berg wrote:
> On Wed, 2008-11-26 at 10:21 +0530, Sujith wrote:
> > Jouni Malinen wrote:
> > > + * @NL80211_ATTR_WIPHY_FREQ: frequency of the selected channel in MHz
> > > + * @NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET: included with NL80211_ATTR_WIPHY_FREQ
> > > + * if HT40 (40 MHz channels) are allowed:
> > > + * NL80211_SEC_CHAN_BELOW = secondary channel is below the primary channel
> > > + * NL80211_SEC_CHAN_ABOVE = secondary channel is above the primary channel
> >
> > The driver needs to know if the selected channel is HT or not.
>
> Can you explain what difference that makes? Is it for running the phy in
> pure legacy mode?
Yes, we calibrate the HW differently for HT/legacy.
Also, we have different rate tables for legacy/HT.
For HT20, it can reach 130 Mbps.
Sujith
next prev parent reply other threads:[~2008-11-26 9:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-25 19:05 [RFC] nl80211: Add frequency configuration (including HT40) Jouni Malinen
2008-11-25 19:13 ` Johannes Berg
2008-11-26 7:52 ` Jouni Malinen
2008-11-26 4:51 ` Sujith
2008-11-26 7:55 ` Jouni Malinen
2008-11-26 8:05 ` Sujith
2008-11-26 8:40 ` Johannes Berg
2008-11-26 9:51 ` Sujith [this message]
2008-11-26 8:38 ` Jouni Malinen
2008-11-26 11:04 ` Johannes Berg
2008-11-26 13:14 ` Jouni Malinen
2008-11-26 13:38 ` Jouni Malinen
2008-11-26 13:55 ` Johannes Berg
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