From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Message-ID: <17939.10130.687893.167511@cargo.ozlabs.ibm.com> Date: Wed, 4 Apr 2007 14:20:34 +1000 From: Paul Mackerras To: Alan Cox Subject: Re: [PATCH] Stop pmac_zilog from abusing 8250's device numbers. In-Reply-To: <20070404022544.59b022a6@the-village.bc.nu> References: <1175610345.2665.15.camel@shinybook.infradead.org> <17938.57292.870224.132415@cargo.ozlabs.ibm.com> <1175642916.10567.24.camel@shinybook.infradead.org> <20070403212928.GA12951@cynthia.pants.nu> <20070404022544.59b022a6@the-village.bc.nu> Cc: linuxppc-dev@ozlabs.org, David Woodhouse , linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Alan Cox writes: > That would be completely unmanagable on many systems with multiport > controllers and interfaces where the naming tells you things like which > cable port off which socket off which multiplexor is the one you are > talking about. I never suggested *all* serial ports should be /dev/ttySn, I said that the built-in ports on the motherboard should be /dev/ttySn. The built-in ports can generally be enumerated early on boot in a stable order, and they should be assigned the low ttySn numbers, regardless of what chip is used to implement them. Paul.