Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751009AbVKWPbL (ORCPT ); Wed, 23 Nov 2005 10:31:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751031AbVKWPbL (ORCPT ); Wed, 23 Nov 2005 10:31:11 -0500 Received: from zeus1.kernel.org ([204.152.191.4]:59795 "EHLO zeus1.kernel.org") by vger.kernel.org with ESMTP id S1751009AbVKWPbK (ORCPT ); Wed, 23 Nov 2005 10:31:10 -0500 Date: Wed, 23 Nov 2005 15:25:59 +0000 From: Russell King To: Jon Smirl Cc: Vojtech Pavlik , Greg KH , lkml Subject: Re: Christmas list for the kernel Message-ID: <20051123152558.GB15449@flint.arm.linux.org.uk> Mail-Followup-To: Jon Smirl , Vojtech Pavlik , Greg KH , lkml References: <9e4733910511221031o44dd90caq2b24fbac1a1bae7b@mail.gmail.com> <20051122204918.GA5299@kroah.com> <9e4733910511221313t4a1e3c67wc7b08160937eb5c5@mail.gmail.com> <20051123121726.GA7328@ucw.cz> <9e4733910511230643j64922738p709fecd6c86b4a95@mail.gmail.com> <20051123150349.GA15449@flint.arm.linux.org.uk> <9e4733910511230719h67fa96bdxdeb654aa12f18e67@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9e4733910511230719h67fa96bdxdeb654aa12f18e67@mail.gmail.com> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1865 Lines: 49 On Wed, Nov 23, 2005 at 10:19:19AM -0500, Jon Smirl wrote: > On 11/23/05, Russell King wrote: > > On Wed, Nov 23, 2005 at 09:43:58AM -0500, Jon Smirl wrote: > > > My system has: > > > 2 serial > > > > > > In /sys/bus/platform/devices I see this: > > > serial8250 > > > shouldn't there be entries for all of the legacy devices? > > > > > > In /dev > > > ttyS0 > > > ttyS1 > > > ttyS2 > > > ttyS3 > > > > You're basically confused about serial ports. The kernel serial devices > > whether or not hardware is found, to allow programs such as setserial to > > function. > > > > If you disagree with that, there'll be an equal number of people who > > have serial cards that need setserial who will in turn disagree with > > you. > > This is confusing... > > Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled > serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A > serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A > serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A > serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A Yes it is, but it's down to the way folk want things to operate. The first two come from the legacy table in include/asm-*/serial.h. The second two come from something-that-I-have-no-clue-about but is probably ACPI related. Dunno. We're back to the far-too-many-complex-ways-to- initialise-serial problem again that I've given up really caring how many lines of serial printk junk folk end up with. I can't fight it all. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 Serial core - 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/