Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757674AbWLCMmo (ORCPT ); Sun, 3 Dec 2006 07:42:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757961AbWLCMmo (ORCPT ); Sun, 3 Dec 2006 07:42:44 -0500 Received: from mail-in-07.arcor-online.net ([151.189.21.47]:26072 "EHLO mail-in-07.arcor-online.net") by vger.kernel.org with ESMTP id S1757674AbWLCMmo (ORCPT ); Sun, 3 Dec 2006 07:42:44 -0500 In-Reply-To: <20061203120130.GA32458@coresystems.de> References: <5986589C150B2F49A46483AC44C7BCA490727C@ssvlexmb2.amd.com> <2ea3fae10612021247v33cfaa4evbc8ad1d5eaf196ba@mail.gmail.com> <20061203120130.GA32458@coresystems.de> Mime-Version: 1.0 (Apple Message framework v752.2) Content-Type: text/plain; charset=US-ASCII; format=flowed Message-Id: <77E505A2-6E0B-422F-92AB-97395730A522@kernel.crashing.org> Cc: "Eric W. Biederman" , Peter Stuge , linux-kernel@vger.kernel.org, linuxbios@linuxbios.org Content-Transfer-Encoding: 7bit From: Segher Boessenkool Subject: Re: [LinuxBIOS] #57: libusb host program for PLX NET20DC debug device Date: Sun, 3 Dec 2006 13:42:07 +0100 To: Stefan Reinauer X-Mailer: Apple Mail (2.752.2) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 527 Lines: 15 > you could use io delay, one outb uses roughly 1us iirc. On LPC, yes -- or 0.5us or something like that. On ISA it's a lot faster, on PCI too -- better do 20 or so outb's to be safe. Or use a *real* timer instead, you'll have to abstract this for portability anyway... Segher - 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/