Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754976AbZAKUcx (ORCPT ); Sun, 11 Jan 2009 15:32:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751734AbZAKUcp (ORCPT ); Sun, 11 Jan 2009 15:32:45 -0500 Received: from BISCAYNE-ONE-STATION.MIT.EDU ([18.7.7.80]:33405 "EHLO biscayne-one-station.mit.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751094AbZAKUco (ORCPT ); Sun, 11 Jan 2009 15:32:44 -0500 Subject: Re: [PATCH 05/11] firewire: cdev: add ioctls for isochronous resource management From: David Moore Reply-To: dcm@acm.org To: Stefan Richter Cc: linux1394-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org In-Reply-To: References: Content-Type: text/plain Date: Sun, 11 Jan 2009 12:32:29 -0800 Message-Id: <1231705949.3538.78.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.24.2 (2.24.2-3.fc10) Content-Transfer-Encoding: 7bit X-Spam-Flag: NO X-Spam-Score: 0.00 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1388 Lines: 31 On Sun, 2009-01-04 at 16:26 +0100, Stefan Richter wrote: > Based on > Date: Tue, 18 Nov 2008 11:41:27 -0500 > From: Jay Fenlason > Subject: [Patch V4] Add ISO resource management support > with several changes to the ABI and implementation. Only the part of > the ABI which enables auto-reallocation and auto-deallocation is > included here. > > This implements ioctls for kernel-assisted allocation of isochronous > channels and isochronous bandwidth. The benefits are: > - The client does not have to have write access to the /dev/fw* device > corresponding to the IRM. > - The client does not have to perform reallocation after bus resets. > - Channel and bandwidth are deallocated by the kernel if the file is > closed before the client deallocated the resources. Thus resources > are released even if the client crashes. > > It is anticipated that future in-kernel code (firewire-core IRM code; > the firewire port of firedtv), will use the fw-iso.c portions of this > code too. > > Signed-off-by: Stefan Richter Tested-by: David Moore -- 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/