Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761140AbYCXQE4 (ORCPT ); Mon, 24 Mar 2008 12:04:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753585AbYCXQEq (ORCPT ); Mon, 24 Mar 2008 12:04:46 -0400 Received: from lazybastard.de ([212.112.238.170]:41867 "EHLO longford.logfs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753484AbYCXQEp (ORCPT ); Mon, 24 Mar 2008 12:04:45 -0400 Date: Mon, 24 Mar 2008 17:04:30 +0100 From: =?utf-8?B?SsO2cm4=?= Engel To: Adrian McMenamin Cc: Paul Mundt , Greg KH , dwmw2 , LKML , MTD , linux-sh , Andrew Morton Subject: Re: [PATCH] 3/3 maple: update bus driver to support Dreamcast VMU Message-ID: <20080324160429.GG2899@logfs.org> References: <1206207805.6324.13.camel@localhost.localdomain> <1206209786.6324.41.camel@localhost.localdomain> <20080324033344.GB15872@linux-sh.org> <20080324144647.GC2899@logfs.org> <1206371178.6283.37.camel@localhost.localdomain> <20080324152952.GF2899@logfs.org> <1206373900.6283.39.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1206373900.6283.39.camel@localhost.localdomain> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1170 Lines: 27 On Mon, 24 March 2008 15:51:40 +0000, Adrian McMenamin wrote: > On Mon, 2008-03-24 at 16:29 +0100, Jörn Engel wrote: > > On Mon, 24 March 2008 15:06:18 +0000, Adrian McMenamin wrote: > > > > > > I don't think I have any alternative here. The problem is that the bus > > > checks periodically (every HZ ticks but that could be changed) if a > > > device remains connected to the system by queueing a status command. (If > > > the status command is replied to with a "No response" then that > > > indicates to the bus that the device has been removed. > > > > Where does this queueing happen? Somewhere in the kernel where we can > > control it or in hardware? > > Well, the queuing of the status command is under software control. Then we should be fine. I'll try to beat the code into submission. Jörn -- Joern's library part 7: http://www.usenix.org/publications/library/proceedings/neworl/full_papers/mckusick.a -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/