Return-path: Received: from [119.255.1.60] ([119.255.1.60]:47844 "EHLO mail.watchdata.com.cn" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1752707Ab1LSMKa (ORCPT ); Mon, 19 Dec 2011 07:10:30 -0500 Received: from localhost (mail.watchdata.com.cn [127.0.0.1]) by mail.watchdata.com.cn (Postfix) with SMTP id D626A20069 for ; Mon, 19 Dec 2011 19:28:45 +0800 (CST) Received: from ligang (unknown [10.0.112.56]) by mail.watchdata.com.cn (Postfix) with ESMTP id C748820066 for ; Mon, 19 Dec 2011 19:28:45 +0800 (CST) From: =?gb2312?B?wO641Q==?= To: "'wireless'" Subject: Question about IEEE80211_TX_CTL_NO_ACK in ath_9k Date: Mon, 19 Dec 2011 19:38:23 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="gb2312" In-Reply-To: <4EED232D.3010208@lwfinger.net> Message-Id: <20111219112845.C748820066@mail.watchdata.com.cn> (sfid-20111219_131033_890271_4109FA40) Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi everybody! My wireless card is AR9280. I set the IEEE80211_TX_CTL_NO_ACK flag before send a packet, but found it no use. It still wait for an ACK. Then I read the code, in ath9k_htc_tx_data(htc_drv_txrx.c) , it seems there is only two flags: #define ATH9K_HTC_TX_CTSONLY 0x1 #define ATH9K_HTC_TX_RTSCTS 0x2 None is about ack. Does anyone know how to make this flag work properly? Thanks a lot! gang.li