Return-path: Received: from youngberry.canonical.com ([91.189.89.112]:52340 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755982Ab3BYOoa (ORCPT ); Mon, 25 Feb 2013 09:44:30 -0500 Date: Mon, 25 Feb 2013 08:44:25 -0600 From: Seth Forshee To: Christian Lamparter Cc: Alan Stern , linux-usb@vger.kernel.org, "Chen, Stephen" , linux-wireless@vger.kernel.org Subject: Re: carl9170 A-MPDU transmit problem Message-ID: <20130225144425.GB13296@thinkpad-t410> (sfid-20130225_154435_154608_2B2E1DA1) References: <201302242330.56346.chunkeey@googlemail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <201302242330.56346.chunkeey@googlemail.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Sun, Feb 24, 2013 at 11:30:56PM +0100, Christian Lamparter wrote: > Did you plug the DWA-160 device into a USB 3.0 port on your ivy bridge > system or does it react in the same way on the 'legacy' USB 2.0 ports as > well [so we are not comparing xhci (Ivy Bridge) to ehci (Arrandale)]? Those two machines only have USB 3.0 ports, but I did manage to find an Ivy Bridge machine with both. On that machine I get a stable connection on the USB 2.0 ports and a flaky connection on the USB 3.0 ports. I didn't actually sniff the frames, but the behavior is consistent with what I saw on the other machines. Seth