From owner-freebsd-wireless@freebsd.org Tue Sep 6 07:39:30 2016 Return-Path: Delivered-To: freebsd-wireless@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 7F774B96C90; Tue, 6 Sep 2016 07:39:30 +0000 (UTC) (envelope-from hps@selasky.org) Received: from mail.turbocat.net (heidi.turbocat.net [88.198.202.214]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 43E459DA; Tue, 6 Sep 2016 07:39:29 +0000 (UTC) (envelope-from hps@selasky.org) Received: from laptop015.home.selasky.org (unknown [62.141.129.119]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.turbocat.net (Postfix) with ESMTPSA id 0F25A1FE022; Tue, 6 Sep 2016 09:39:27 +0200 (CEST) Subject: Re: Small example program shut down urtwn To: Adrian Chadd , =?UTF-8?B?T3RhY8OtbGlv?= References: Cc: "freebsd-arm@freebsd.org" , "freebsd-wireless@freebsd.org" From: Hans Petter Selasky Message-ID: <65f68e6c-a1cc-73ec-f3f0-048d4f339ad8@selasky.org> Date: Tue, 6 Sep 2016 09:44:08 +0200 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101 Thunderbird/45.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Sep 2016 07:39:30 -0000 On 09/06/16 06:47, Adrian Chadd wrote: > missing some bus > barriers for ARM or something? FYI: Most of the USB control and data memory is coherently allocated and don't need barriers. You can try capturing a trace using usbdump, of the traffic on your device, and see where it hangs: usbdump -i usbusX -f Y -s 65536 --HPS