Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 16 Aug 2002 17:19:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 16 Aug 2002 17:19:48 -0400 Received: from www.wotug.org ([194.106.52.201]:1848 "EHLO gatemaster.ivimey.org") by vger.kernel.org with ESMTP id ; Fri, 16 Aug 2002 17:19:48 -0400 Date: Fri, 16 Aug 2002 22:21:28 +0100 (BST) From: Ruth Ivimey-Cook X-X-Sender: ruthc@sharra.ivimey.org To: henrique cc: Oliver Xymoron , Subject: Re: Problem with random.c and PPC In-Reply-To: <200208161751.35895.henrique@cyclades.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1035 Lines: 28 On Fri, 16 Aug 2002, henrique wrote: >What would you do in my situation. I am dealing with the Motorola MPC860T and >my system has no disk (I use a flash), no mouse, no keyboard, no PCI bus. It >has just a fast-ethernet, a console port and some serial ports. > >After reading the discussion on the lkml I realize that the only places I can >get randomness in my system is in the serial.c (that controls the serial >ports) and arch/ppc/8xx_io/fec.c (fast eth driver) interrupts. Is there another way -- add a 'noise' device by connecting a PIO pin or similar to suitable hardware? It shouldn't bee too hard to do as a one-off. For example: [noise-diode]--[amplifier]--[schmidt-trigger-inverter]---[PIO INT pin] Ruth -- Ruth Ivimey-Cook Software engineer and technical writer. - 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/