From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932418AbXAGGk3 (ORCPT ); Sun, 7 Jan 2007 01:40:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932421AbXAGGk3 (ORCPT ); Sun, 7 Jan 2007 01:40:29 -0500 Received: from wx-out-0506.google.com ([66.249.82.239]:47140 "EHLO wx-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932418AbXAGGk2 (ORCPT ); Sun, 7 Jan 2007 01:40:28 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=o99ZqJltLOwKx6h9GjrCMqbiqGTH2zPakgAVx8rWMbJF2koY2h7anrMxPljhch+HbHQ9JblttkEQflUoO4ZqjlU9jb+xXodW4tY75Dj4xyuB2gKdYs6pJzvV2ygUyMd6JImxko6vnNC9Dh/yg/7o3Sb7fnfzlivJzsU2lmXB+Mo= Message-ID: <652016d30701062240w4756bc4m8fdb54070708fd81@mail.gmail.com> Date: Sun, 7 Jan 2007 12:25:27 +0545 From: "Manish Regmi" To: linux-kernel@vger.kernel.org Subject: ATA streaming feature support MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi all, First of all sorry for bringing this topic again. As discussed in --> http://lkml.org/lkml/2006/5/5/47 The ATA Streaming feature set is not necessary to be in Kernel Space (IDE driver). There is a suggestion creating user space library. But how is the user space apps going to use the commands like READ STREAM DMA EXT (0x2A). Shouldn't there be some support in kernel which setups up PRD tables and all. It doesn't seem to be possible.... is it? Does it sound normal if we have something like O_STREAM in open() or a seperate IOCTL to command the driver to use STREAM commands (if supported). Will this feature be useful for streaming media apps like DVRs? (i am working in one such.) -- --------------------------------------------------------------- regards Manish Regmi --------------------------------------------------------------- UNIX without a C Compiler is like eating Spaghetti with your mouth sewn shut. It just doesn't make sense.