From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 21 May 2002 17:28:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 21 May 2002 17:28:30 -0400 Received: from [195.39.17.254] ([195.39.17.254]:15514 "EHLO Elf.ucw.cz") by vger.kernel.org with ESMTP id ; Tue, 21 May 2002 17:28:26 -0400 Date: Tue, 21 May 2002 23:26:06 +0200 From: Pavel Machek To: Patrick Mochel Cc: Arnd Bergmann , linux-kernel@vger.kernel.org, Arnd Bergmann Subject: Re: driverfs problem Message-ID: <20020521212606.GB3050@elf.ucw.cz> In-Reply-To: <200205171408.g4HE8tK65272@d12relay02.de.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.28i X-Warning: Reading this can be dangerous to your mental health. Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > > - I'm not sure about how to name the device directories. I don't have anything > > like a hierarchical structure (except for something like scsi devices behind > > a channel device) but rather a flat list of up to 65536 devices that are > > accessed by a device number that was defined by the system administrator. > > Each device also has a control unit type, comparable to a PCI ID, and in the > > general case each device driver knows about one control unit type. A > > hypothetical system might have > > - one console, control unit type 0x3215, device number 0x0000 > > - three network devices, control unit type 0x1732, devno 0x0100 to 0x0102 > > - 1024 storage devices, control unit type 0x3390, devno 0x1000 to 0x13ff > > The control unit types are irrelevant at this point, as they dictate the > type of device. You want to accurately represent the physical layout of > the system. s390 is linux on the top of vm. Linux runs under vmware-kind of machine.... Its difficult to talk about "physical". Pavel -- (about SSSCA) "I don't say this lightly. However, I really think that the U.S. no longer is classifiable as a democracy, but rather as a plutocracy." --hpa