Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030208AbWA3X3D (ORCPT ); Mon, 30 Jan 2006 18:29:03 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030214AbWA3X3D (ORCPT ); Mon, 30 Jan 2006 18:29:03 -0500 Received: from prgy-npn2.prodigy.com ([207.115.54.38]:14015 "EHLO oddball.prodigy.com") by vger.kernel.org with ESMTP id S1030208AbWA3X3C (ORCPT ); Mon, 30 Jan 2006 18:29:02 -0500 Message-ID: <43DEA195.1080609@tmr.com> Date: Mon, 30 Jan 2006 18:30:29 -0500 From: Bill Davidsen User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050920 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Linux Kernel Mailing List Subject: CD writing - related question Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1782 Lines: 40 Please take this as a question to elicit information, not an invitation for argument. In Linux currently: SCSI - liiks like SCSI USB - looks like SCSI Firewaire - looks like SCSI SATA - looks like SCSI Compact flash and similar - looks like SCSI ATAPI - looks different unless ide-scsi used Was there a reason, a technical reason, why the minor blotches in ide-scsi weren't fixed so that everything could look the same and share the same device naming form? The DMA issue is solved for blocks, and several people have stated to the list that the remaining issues could be solved in minimal time. Seeing no disagreement, I'll assume that's true. There are separate IDE drivers for disk, tape, floppy, and CD, and the only reason I ever heard was that ide-scsi adds overhead. I did some tests using a mighty Pentium-II 350, and there was no overhead with disk or CD (within the limits of measurement). So there's no huge CPU penalty, why then the decision to have the separate ide drivers? The last time I tried, there was one thing which didn't work quite right doing ZIP drives unless ide-scsi was used, and MO drives don't seem to work any other way, but I haven't tried since about 2.6.6 or so, that info could be dated. This is NOT an argument for change, it may be a reminder that ide-scsi is not unused, I just never saw any technical reason mentioned. -- -bill davidsen (davidsen@tmr.com) "The secret to procrastination is to put things off until the last possible moment - but no longer" -me - 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/