Return-path: Received: from s3.sipsolutions.net ([144.76.43.152]:39299 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752903Ab3FROue (ORCPT ); Tue, 18 Jun 2013 10:50:34 -0400 Message-ID: <1371567030.8318.34.camel@jlt4.sipsolutions.net> (sfid-20130618_165036_407895_6E5E4CC3) Subject: Re: [PATCHv2 2/5] nl80211/cfg80211: add channel switch command From: Johannes Berg To: Simon Wunderlich Cc: linux-wireless@vger.kernel.org, Simon Wunderlich , Mathias Kretschmer Date: Tue, 18 Jun 2013 16:50:30 +0200 In-Reply-To: <1371212124-26264-3-git-send-email-siwu@hrz.tu-chemnitz.de> References: <1371212124-26264-1-git-send-email-siwu@hrz.tu-chemnitz.de> <1371212124-26264-3-git-send-email-siwu@hrz.tu-chemnitz.de> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: > + * @NL80211_CMD_CHANNEL_SWITCH: Perform a channel switch by announcing the > + * the new channel information (Channel Switch Announcement - CSA) > + * in the beacon for some time (as defined in the > + * %NL80211_ATTR_CH_SWITCH_COUNT parameter) and then change to the > + * new channel. Userspace provides the new channel information (using > + * %NL80211_ATTR_WIPHY_FREQ and the attributes determining channel > + * width). %NL80211_ATTR_CH_SWITCH_BLOCK_TX may be supplied to inform > + * other station that transmission must be blocked until the channel > + * switch is complete. We probably need a flag to indicate that the command is available, since mac80211 might implement it but not all drivers will? johannes