From owner-freebsd-usb@FreeBSD.ORG Thu Dec 2 00:01:01 2004 Return-Path: Delivered-To: freebsd-usb@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0873316A4CE for ; Thu, 2 Dec 2004 00:01:01 +0000 (GMT) Received: from mail.vicor-nb.com (bigwoop.vicor-nb.com [208.206.78.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id DE84243D1F for ; Thu, 2 Dec 2004 00:01:00 +0000 (GMT) (envelope-from julian@elischer.org) Received: from elischer.org (julian.vicor-nb.com [208.206.78.97]) by mail.vicor-nb.com (Postfix) with ESMTP id C14807A451; Wed, 1 Dec 2004 16:01:00 -0800 (PST) Message-ID: <41AE5B3C.8010003@elischer.org> Date: Wed, 01 Dec 2004 16:01:00 -0800 From: Julian Elischer User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.3.1) Gecko/20030516 X-Accept-Language: en, hu MIME-Version: 1.0 To: "M. Warner Losh" References: <20041201.160833.35218540.imp@bsdimp.com> In-Reply-To: <20041201.160833.35218540.imp@bsdimp.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-usb@freebsd.org Subject: Re: Question about pipes and ugen X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 02 Dec 2004 00:01:01 -0000 M. Warner Losh wrote: >Right now, when the usb stack opens a pipe, it resets the pipe using >the ClearFeature(Stall) message. This appears to work great for the >vast majority of usb devices that use things like ugen. However, >there are some that do not like this at all. Fidora Core 1 Linux, for >example, never seems to send these reset messages. Consequently, >there are some devices that work well on Linux, but fail utterly on >FreeBSD. > On the other hand linux's usblib sends a ClearFeature(halt) as well, which we don't even have in our version yet.. I'm slowly working on this.. > >>From my reading of the standard, it appears that FreeBSD is doing >standards conforming things. Can anybody confirm this? Even if it is >standards conforming, is there a desire for FreeBSD to not do this? > I believe that this would have to be a "quirk" and enterred into the "quirk" database so that such devices don't try do that.. (The quirks database is something we did in SCSI and has been duplicated in USB ,where badly behaved devices are identified and special behaviour can be requested for them.) > >Thanks much > >Warner >_______________________________________________ >freebsd-usb@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-usb >To unsubscribe, send any mail to "freebsd-usb-unsubscribe@freebsd.org" > >